Version updated

Fixed QRCode eyes with transparent background
DataGrid possible memory leak fixed
2026-02-04 05:35:44 +00:00 · 2026-02-03 09:56:04 +02:00 · 2026-02-03 08:44:24 +02:00 · 2026-02-03 07:46:32 +02:00 · 2026-02-02 12:09:40 +02:00 · 2026-01-30 12:23:10 +02:00
23 changed files with 1715 additions and 969 deletions
--- a/Radzen.Blazor.Tests/PagerTests.cs
+++ b/Radzen.Blazor.Tests/PagerTests.cs
@@ -2,6 +2,7 @@ using Bunit;
 using Bunit.JSInterop;
 using System;
 using System.Collections.Generic;
+using System.Threading.Tasks;
 using Xunit;

 namespace Radzen.Blazor.Tests
@@ -54,7 +55,7 @@ namespace Radzen.Blazor.Tests
        }

        [Fact]
-        public async void RadzenPager_Renders_Summary() {
+        public async Task RadzenPager_Renders_Summary() {
            using var ctx = new TestContext();
            ctx.JSInterop.Mode = JSRuntimeMode.Loose;
            ctx.JSInterop.SetupModule("_content/Radzen.Blazor/Radzen.Blazor.js");
@@ -64,7 +65,7 @@ namespace Radzen.Blazor.Tests
                parameters.Add<int>(p => p.Count, 100);
                parameters.Add<bool>(p => p.ShowPagingSummary, true);
            });
-            await component.Instance.GoToPage(2);
+            await component.InvokeAsync(() => component.Instance.GoToPage(2));
            component.Render();

            Assert.Contains(@$"rz-pager-summary", component.Markup); 
@@ -111,7 +112,7 @@ namespace Radzen.Blazor.Tests
        }

        [Fact]
-        public async void RadzenPager_First_And_Prev_Buttons_Are_Disabled_When_On_The_First_Page()
+        public async Task RadzenPager_First_And_Prev_Buttons_Are_Disabled_When_On_The_First_Page()
        {
            using var ctx = new TestContext();
            ctx.JSInterop.Mode = JSRuntimeMode.Loose;
@@ -123,7 +124,7 @@ namespace Radzen.Blazor.Tests
                parameters.Add<bool>(p => p.ShowPagingSummary, true);
            });

-            await component.Instance.GoToPage(0);
+            await component.InvokeAsync(() => component.Instance.GoToPage(0));
            component.Render();

            var firstPageButton = component.Find("a.rz-pager-first");
@@ -134,7 +135,7 @@ namespace Radzen.Blazor.Tests
        }

        [Fact]
-        public async void RadzenPager_Last_And_Next_Buttons_Are_Disabled_When_On_The_Last_Page()
+        public async Task RadzenPager_Last_And_Next_Buttons_Are_Disabled_When_On_The_Last_Page()
        {
            using var ctx = new TestContext();
            ctx.JSInterop.Mode = JSRuntimeMode.Loose;
@@ -146,7 +147,7 @@ namespace Radzen.Blazor.Tests
                parameters.Add<bool>(p => p.ShowPagingSummary, true);
            });

-            await component.Instance.GoToPage(9);
+            await component.InvokeAsync(() => component.Instance.GoToPage(9));
            component.Render();

            var lastPageButton = component.Find("a.rz-pager-last");
--- a/Radzen.Blazor/DropDownBase.cs
+++ b/Radzen.Blazor/DropDownBase.cs
@@ -508,7 +508,7 @@ namespace Radzen
        /// <param name="item">The item.</param>
        /// <param name="property">The property.</param>
        /// <returns>System.Object.</returns>
-        public object? GetItemOrValueFromProperty(object? item, string property)
+        public virtual object? GetItemOrValueFromProperty(object? item, string property)
        {
            if (item != null)
            {
--- a/Radzen.Blazor/GroupRowRenderEventArgs.cs
+++ b/Radzen.Blazor/GroupRowRenderEventArgs.cs
@@ -17,6 +17,12 @@ public class GroupRowRenderEventArgs
    /// </summary>
    public Group? Group { get; internal set; }

+    /// <summary>
+    /// Gets or sets a value indicating whether this group row is expandable.
+    /// </summary>
+    /// <value><c>true</c> if expandable; otherwise, <c>false</c>.</value>
+    public bool Expandable { get; set; }
+
    /// <summary>
    /// Gets or sets a value indicating whether this group row is expanded.
    /// </summary>
--- a/Radzen.Blazor/QueryableExtension.cs
+++ b/Radzen.Blazor/QueryableExtension.cs
@@ -41,6 +41,65 @@ namespace Radzen
            return source.Provider.CreateQuery(selectExpression);
        }

+        /// <summary>
+        /// Projects each element of a sequence into a collection of property values.
+        /// </summary>
+        public static IQueryable Select(this IQueryable source, IEnumerable<string> propertyNames)
+        {
+            ArgumentNullException.ThrowIfNull(source);
+            ArgumentNullException.ThrowIfNull(propertyNames);
+
+            var parameter = Expression.Parameter(source.ElementType, "x");
+
+            var bindings = new List<MemberBinding>();
+            var allProperties = source.ElementType.GetProperties();
+
+            foreach (var property in allProperties.Where(p => propertyNames.Contains(p.Name)))
+            {
+                bindings.Add(Expression.Bind(property, Expression.Property(parameter, property)));
+            }
+
+            var body = Expression.MemberInit(Expression.New(source.ElementType), bindings);
+
+            var delegateType = typeof(Func<,>).MakeGenericType(source.ElementType, source.ElementType);
+
+            var lambda = Expression.Lambda(delegateType, body, parameter);
+
+            var selectExpression = Expression.Call(typeof(Queryable),
+                nameof(Queryable.Select), [source.ElementType, source.ElementType], source.Expression,
+                    Expression.Quote(lambda));
+
+            return source.Provider.CreateQuery(selectExpression);
+        }
+
+        /// <summary>
+        /// Projects each element of a sequence into a collection of property values.
+        /// </summary>
+        public static IQueryable<T> Select<T>(this IQueryable<T> source, IEnumerable<string> propertyNames)
+        {
+            ArgumentNullException.ThrowIfNull(source);
+            ArgumentNullException.ThrowIfNull(propertyNames);
+
+            var parameter = Expression.Parameter(typeof(T), "x");
+
+            var bindings = new List<MemberBinding>();
+            var allProperties = typeof(T).GetProperties();
+
+            foreach (var property in allProperties.Where(p => propertyNames.Contains(p.Name)))
+            {
+                bindings.Add(Expression.Bind(property, Expression.Property(parameter, property)));
+            }
+
+            var body = Expression.MemberInit(Expression.New(typeof(T)), bindings);
+
+            var lambda = Expression.Lambda<Func<T, T>>(body, parameter);
+
+            var selectExpression = Expression.Call(typeof(Queryable),
+                nameof(Queryable.Select), [typeof(T), typeof(T)], source.Expression,
+                    Expression.Quote(lambda));
+
+            return source.Provider.CreateQuery<T>(selectExpression);
+        }

        /// <summary>
        /// Projects each element of a sequence to an IEnumerable and flattens the resulting sequences into one sequence.
--- a/Radzen.Blazor/Radzen.Blazor.csproj
+++ b/Radzen.Blazor/Radzen.Blazor.csproj
@@ -11,7 +11,7 @@
    <IsPackable>true</IsPackable>
    <PackageId>Radzen.Blazor</PackageId>
    <Product>Radzen.Blazor</Product>
-    <Version>8.7.0</Version>
+    <Version>8.7.5</Version>
    <Copyright>Radzen Ltd.</Copyright>
    <Authors>Radzen Ltd.</Authors>
    <Description>Radzen Blazor is the most sophisticated free UI component library for Blazor, featuring 100+ native components including DataGrid, Scheduler, Charts, and advanced theming with full support for Material Design and Fluent UI.</Description>
--- a/Radzen.Blazor/RadzenBarcode.razor.cs
+++ b/Radzen.Blazor/RadzenBarcode.razor.cs
@@ -1,9 +1,11 @@
 using Microsoft.AspNetCore.Components;
+using Microsoft.JSInterop;
 using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
 using System.Text;
+using System.Threading.Tasks;

 namespace Radzen.Blazor
 {
@@ -93,22 +95,6 @@ namespace Radzen.Blazor
            _ => false
        };

-        internal readonly struct BarcodeRect
-        {
-            public readonly double X;
-            public readonly double Y;
-            public readonly double Width;
-            public readonly double Height;
-
-            public BarcodeRect(double x, double y, double width, double height)
-            {
-                X = x;
-                Y = y;
-                Width = width;
-                Height = height;
-            }
-        }
-
        /// <summary>
        /// Gets or sets the barcode value to encode.
        /// </summary>
@@ -275,894 +261,20 @@ namespace Radzen.Blazor
            if (vbWidth <= 0) vbWidth = 1;
            return (geometry.bars, vbWidth, checksumText, null);
        }
-    }

-    internal static class RadzenBarcodeEncoder
-    {
-        // Code 128 patterns (0..106). Each entry is 6 digits (bar/space/bar/space/bar/space) module widths.
-        // Stop code (106) is 7 digits in the spec (includes a final bar). We keep it as 7 digits and handle it.
-        static readonly string[] Code128Patterns = new[]
+        /// <summary>
+        /// Returns the SVG markup of the rendered QR code as a string.
+        /// </summary>
+        /// <returns>
+        /// A <see cref="Task{String}"/> representing the asynchronous operation. The task result contains the SVG markup of the QR code.
+        /// </returns>
+        public async Task<string> ToSvg()
        {
-            "212222","222122","222221","121223","121322","131222","122213","122312","132212","221213",
-            "221312","231212","112232","122132","122231","113222","123122","123221","223211","221132",
-            "221231","213212","223112","312131","311222","321122","321221","312212","322112","322211",
-            "212123","212321","232121","111323","131123","131321","112313","132113","132311","211313",
-            "231113","231311","112133","112331","132131","113123","113321","133121","313121","211331",
-            "231131","213113","213311","213131","311123","311321","331121","312113","312311","332111",
-            "314111","221411","431111","111224","111422","121124","121421","141122","141221","112214",
-            "112412","122114","122411","142112","142211","241211","221114","413111","241112","134111",
-            "111242","121142","121241","114212","124112","124211","411212","421112","421211","212141",
-            "214121","412121","111143","111341","131141","114113","114311","411113","411311","113141",
-            "114131","311141","411131","211412","211214","211232","2331112"
-        };
-
-        public static IReadOnlyList<int> EncodeCode128B(string value) => EncodeCode128B(value, out _);
-
-        public static IReadOnlyList<int> EncodeCode128B(string value, out int checksum)
-        {
-            // Code 128 subset B supports ASCII 32..127 (inclusive). We treat 127 as DEL.
-            var codes = new List<int>(value.Length + 3);
-            const int startB = 104;
-            const int stop = 106;
-
-            codes.Add(startB);
-
-            for (int i = 0; i < value.Length; i++)
+            if (JSRuntime != null)
            {
-                var ch = value[i];
-                int ascii = ch;
-                if (ascii < 32 || ascii > 127)
-                {
-                    throw new ArgumentException($"Code128B supports ASCII 32..127. Invalid character: U+{ascii:X4}.");
-                }
-
-                // In Code128B, code value is ascii - 32
-                codes.Add(ascii - 32);
+                return await JSRuntime.InvokeAsync<string>("Radzen.outerHTML", Element);
            }
-
-            int checksumValue = codes[0];
-            for (int i = 1; i < codes.Count; i++)
-            {
-                checksumValue += codes[i] * i;
-            }
-            checksumValue %= 103;
-
-            // expose checksum (0..102)
-            checksum = checksumValue;
-
-            codes.Add(checksumValue);
-            codes.Add(stop);
-
-            // Convert codes to module pattern widths, alternating bar/space.
-            // Most codes are 6 digits; stop is 7 digits.
-            var modules = new List<int>(codes.Count * 6);
-            foreach (var code in codes)
-            {
-                var p = Code128Patterns[code];
-                for (int i = 0; i < p.Length; i++)
-                {
-                    modules.Add(p[i] - '0');
-                }
-            }
-
-            // Code 128 requires a 2-module termination bar after the stop pattern.
-            // Many pattern tables omit it because it can be represented by extending the
-            // final bar of the stop pattern by 2 modules.
-            if (modules.Count > 0)
-            {
-                modules[^1] += 2;
-            }
-
-            return modules;
-        }
-
-        static readonly Dictionary<char, string> Code39Map = new Dictionary<char, string>()
-        {
-            // Each pattern is 9 elements (bar/space alternating, starting with bar).
-            // 'n' = narrow (1), 'w' = wide (2). We expand to digits.
-            ['0'] = "nnnwwnwnn",
-            ['1'] = "wnnwnnnnw",
-            ['2'] = "nnwwnnnnw",
-            ['3'] = "wnwwnnnnn",
-            ['4'] = "nnnwwnnnw",
-            ['5'] = "wnnwwnnnn",
-            ['6'] = "nnwwwnnnn",
-            ['7'] = "nnnwnnwnw",
-            ['8'] = "wnnwnnwnn",
-            ['9'] = "nnwwnnwnn",
-            ['A'] = "wnnnnwnnw",
-            ['B'] = "nnwnnwnnw",
-            ['C'] = "wnwnnwnnn",
-            ['D'] = "nnnnwwnnw",
-            ['E'] = "wnnnwwnnn",
-            ['F'] = "nnwnwwnnn",
-            ['G'] = "nnnnnwwnw",
-            ['H'] = "wnnnnwwnn",
-            ['I'] = "nnwnnwwnn",
-            ['J'] = "nnnnwwwnn",
-            ['K'] = "wnnnnnnww",
-            ['L'] = "nnwnnnnww",
-            ['M'] = "wnwnnnnwn",
-            ['N'] = "nnnnwnnww",
-            ['O'] = "wnnnwnnwn",
-            ['P'] = "nnwnwnnwn",
-            ['Q'] = "nnnnnnwww",
-            ['R'] = "wnnnnnwwn",
-            ['S'] = "nnwnnnwwn",
-            ['T'] = "nnnnwnwwn",
-            ['U'] = "wwnnnnnnw",
-            ['V'] = "nwwnnnnnw",
-            ['W'] = "wwwnnnnnn",
-            ['X'] = "nwnnwnnnw",
-            ['Y'] = "wwnnwnnnn",
-            ['Z'] = "nwwnwnnnn",
-            ['-'] = "nwnnnnwnw",
-            ['.'] = "wwnnnnwnn",
-            [' '] = "nwwnnnwnn",
-            ['$'] = "nwnwnwnnn",
-            ['/'] = "nwnwnnnwn",
-            ['+'] = "nwnnnwnwn",
-            ['%'] = "nnnwnwnwn",
-            ['*'] = "nwnnwnwnn", // start/stop
-        };
-
-        public static IReadOnlyList<int> EncodeCode39(string value)
-        {
-            // Code39 traditionally uses uppercase
-            var text = value.ToUpperInvariant();
-
-            foreach (var ch in text)
-            {
-                if (!Code39Map.ContainsKey(ch))
-                {
-                    throw new ArgumentException($"Code39 does not support character '{ch}'.");
-                }
-            }
-
-            // Start + data + stop, inter-character gap (narrow space) between characters.
-            var full = "*" + text + "*";
-            var modules = new List<int>(full.Length * 10);
-
-            for (int idx = 0; idx < full.Length; idx++)
-            {
-                var pat = Code39Map[full[idx]];
-                for (int i = 0; i < pat.Length; i++)
-                {
-                    modules.Add(pat[i] == 'w' ? 2 : 1);
-                }
-
-                // Inter-character gap (narrow space) except after last char.
-                if (idx != full.Length - 1)
-                {
-                    modules.Add(1);
-                }
-            }
-
-            return modules;
-        }
-
-        public static IReadOnlyList<int> EncodeItf(string value)
-        {
-            var digits = new string(value.Where(char.IsDigit).ToArray());
-            if (digits.Length == 0)
-            {
-                throw new ArgumentException("ITF requires numeric input.");
-            }
-            if (digits.Length % 2 != 0)
-            {
-                // pad with leading zero (common behavior)
-                digits = "0" + digits;
-            }
-
-            const int narrow = 1;
-            const int wide = 3;
-
-            static string Pat(char d) => d switch
-            {
-                '0' => "nnwwn",
-                '1' => "wnnnw",
-                '2' => "nwnnw",
-                '3' => "wwnnn",
-                '4' => "nnwnw",
-                '5' => "wnwnn",
-                '6' => "nwwnn",
-                '7' => "nnnww",
-                '8' => "wnnwn",
-                '9' => "nwnwn",
-                _ => throw new ArgumentException("ITF requires numeric input.")
-            };
-
-            var widths = new List<int>(digits.Length * 10 + 16);
-
-            // Start: narrow bar, narrow space, narrow bar, narrow space  (1010)
-            widths.Add(narrow);
-            widths.Add(narrow);
-            widths.Add(narrow);
-            widths.Add(narrow);
-
-            for (int i = 0; i < digits.Length; i += 2)
-            {
-                var a = Pat(digits[i]);
-                var b = Pat(digits[i + 1]);
-
-                for (int j = 0; j < 5; j++)
-                {
-                    widths.Add(a[j] == 'w' ? wide : narrow); // bar
-                    widths.Add(b[j] == 'w' ? wide : narrow); // space
-                }
-            }
-
-            // Stop: wide bar, narrow space, narrow bar (1101)
-            widths.Add(wide);
-            widths.Add(narrow);
-            widths.Add(narrow);
-
-            return widths;
-        }
-
-        public static IReadOnlyList<int> EncodeCodabar(string value)
-        {
-            // Wikipedia table mapping (bars: 1=wide, spaces: 0=wide) for the standard symbol set.
-            // Ensure start/stop are present; default to A ... B if missing.
-            var raw = (value ?? string.Empty).Trim().ToUpperInvariant();
-            if (raw.Length == 0)
-            {
-                throw new ArgumentException("Codabar requires a non-empty value.");
-            }
-
-            bool HasStartStop(string s)
-            {
-                if (s.Length < 2) return false;
-                bool isStart = s[0] == 'A' || s[0] == 'B' || s[0] == 'C' || s[0] == 'D';
-                bool isStop = s[s.Length - 1] == 'A' || s[s.Length - 1] == 'B' || s[s.Length - 1] == 'C' || s[s.Length - 1] == 'D';
-                return isStart && isStop;
-            }
-
-            var text = HasStartStop(raw) ? raw : $"A{raw}B";
-
-            static (string spaceBits, string barBits) Map(char ch) => ch switch
-            {
-                '0' => ("001", "0001"),
-                '1' => ("001", "0010"),
-                '2' => ("010", "0001"),
-                '3' => ("100", "1000"),
-                '4' => ("001", "0100"),
-                '5' => ("001", "1000"),
-                '6' => ("100", "0001"),
-                '7' => ("100", "0010"),
-                '8' => ("100", "0100"),
-                '9' => ("010", "1000"),
-                '-' => ("010", "0010"),
-                '$' => ("010", "0100"),
-                '.' => ("000", "0001"),
-                '/' => ("000", "0010"),
-                ':' => ("000", "0100"),
-                '+' => ("000", "1000"),
-                'A' => ("011", "0100"),
-                'B' => ("110", "0001"),
-                'C' => ("011", "0001"),
-                'D' => ("011", "0010"),
-                _ => throw new ArgumentException($"Codabar does not support character '{ch}'.")
-            };
-
-            const int narrow = 1;
-            const int wide = 3;
-
-            var widths = new List<int>(text.Length * 8);
-
-            for (int idx = 0; idx < text.Length; idx++)
-            {
-                var ch = text[idx];
-                var (spaceBits, barBits) = Map(ch);
-
-                // Bars: 4 bits, 1=wide
-                int BarWidth(int pos) => barBits[pos] == '1' ? wide : narrow;
-                // Spaces: 3 bits, 0=wide (per wikipedia mapping table)
-                int SpaceWidth(int pos) => spaceBits[pos] == '0' ? wide : narrow;
-
-                widths.Add(BarWidth(0));
-                widths.Add(SpaceWidth(0));
-                widths.Add(BarWidth(1));
-                widths.Add(SpaceWidth(1));
-                widths.Add(BarWidth(2));
-                widths.Add(SpaceWidth(2));
-                widths.Add(BarWidth(3));
-
-                // Inter-character narrow space (except after last char).
-                if (idx != text.Length - 1)
-                {
-                    widths.Add(narrow);
-                }
-            }
-
-            return widths;
-        }
-
-        static readonly string[] EanL = new[]
-        {
-            "0001101","0011001","0010011","0111101","0100011","0110001","0101111","0111011","0110111","0001011"
-        };
-        static readonly string[] EanG = new[]
-        {
-            "0100111","0110011","0011011","0100001","0011101","0111001","0000101","0010001","0001001","0010111"
-        };
-        static readonly string[] EanR = new[]
-        {
-            "1110010","1100110","1101100","1000010","1011100","1001110","1010000","1000100","1001000","1110100"
-        };
-        static readonly string[] Ean13Parity = new[]
-        {
-            "LLLLLL","LLGLGG","LLGGLG","LLGGGL","LGLLGG","LGGLLG","LGGGLL","LGLGLG","LGLGGL","LGGLGL"
-        };
-
-        static int ComputeEanCheckDigit(string digitsWithoutCheck)
-        {
-            // digitsWithoutCheck is 7/11/12 digits depending on symbology.
-            int sum = 0;
-            bool weight3 = true;
-            for (int i = digitsWithoutCheck.Length - 1; i >= 0; i--)
-            {
-                int d = digitsWithoutCheck[i] - '0';
-                sum += weight3 ? d * 3 : d;
-                weight3 = !weight3;
-            }
-            int mod = sum % 10;
-            return (10 - mod) % 10;
-        }
-
-        public static string EncodeEan13(string value, out string checksumText)
-        {
-            var digits = new string(value.Where(char.IsDigit).ToArray());
-            if (digits.Length != 12 && digits.Length != 13)
-            {
-                throw new ArgumentException("EAN-13 requires 12 or 13 digits.");
-            }
-
-            if (digits.Length == 12)
-            {
-                var check = ComputeEanCheckDigit(digits);
-                digits += check.ToString(CultureInfo.InvariantCulture);
-            }
-            else
-            {
-                var expected = ComputeEanCheckDigit(digits[..12]);
-                if (digits[12] - '0' != expected)
-                {
-                    throw new ArgumentException("Invalid EAN-13 check digit.");
-                }
-            }
-
-            checksumText = digits[^1].ToString();
-
-            int first = digits[0] - '0';
-            var parity = Ean13Parity[first];
-
-            var sb = new StringBuilder(95);
-            sb.Append("101");
-            // digits 2..7 (index 1..6)
-            for (int i = 1; i <= 6; i++)
-            {
-                int d = digits[i] - '0';
-                sb.Append(parity[i - 1] == 'G' ? EanG[d] : EanL[d]);
-            }
-            sb.Append("01010");
-            for (int i = 7; i <= 12; i++)
-            {
-                int d = digits[i] - '0';
-                sb.Append(EanR[d]);
-            }
-            sb.Append("101");
-            return sb.ToString();
-        }
-
-        public static string EncodeUpcA(string value, out string checksumText)
-        {
-            var digits = new string(value.Where(char.IsDigit).ToArray());
-            if (digits.Length != 11 && digits.Length != 12)
-            {
-                throw new ArgumentException("UPC-A requires 11 or 12 digits.");
-            }
-
-            if (digits.Length == 11)
-            {
-                var check = ComputeEanCheckDigit(digits);
-                digits += check.ToString(CultureInfo.InvariantCulture);
-            }
-            else
-            {
-                var expected = ComputeEanCheckDigit(digits[..11]);
-                if (digits[11] - '0' != expected)
-                {
-                    throw new ArgumentException("Invalid UPC-A check digit.");
-                }
-            }
-
-            checksumText = digits[^1].ToString();
-
-            var sb = new StringBuilder(95);
-            sb.Append("101");
-            for (int i = 0; i < 6; i++)
-            {
-                int d = digits[i] - '0';
-                sb.Append(EanL[d]);
-            }
-            sb.Append("01010");
-            for (int i = 6; i < 12; i++)
-            {
-                int d = digits[i] - '0';
-                sb.Append(EanR[d]);
-            }
-            sb.Append("101");
-            return sb.ToString();
-        }
-
-        public static string EncodeEan8(string value, out string checksumText)
-        {
-            var digits = new string(value.Where(char.IsDigit).ToArray());
-            if (digits.Length != 7 && digits.Length != 8)
-            {
-                throw new ArgumentException("EAN-8 requires 7 or 8 digits.");
-            }
-
-            if (digits.Length == 7)
-            {
-                var check = ComputeEanCheckDigit(digits);
-                digits += check.ToString(CultureInfo.InvariantCulture);
-            }
-            else
-            {
-                var expected = ComputeEanCheckDigit(digits[..7]);
-                if (digits[7] - '0' != expected)
-                {
-                    throw new ArgumentException("Invalid EAN-8 check digit.");
-                }
-            }
-
-            checksumText = digits[^1].ToString();
-
-            var sb = new StringBuilder(67);
-            sb.Append("101");
-            for (int i = 0; i < 4; i++)
-            {
-                int d = digits[i] - '0';
-                sb.Append(EanL[d]);
-            }
-            sb.Append("01010");
-            for (int i = 4; i < 8; i++)
-            {
-                int d = digits[i] - '0';
-                sb.Append(EanR[d]);
-            }
-            sb.Append("101");
-            return sb.ToString();
-        }
-
-        public static string EncodeIsbnAsEan13(string value, out string checksumText)
-        {
-            var raw = new string(value.Where(char.IsLetterOrDigit).ToArray()).ToUpperInvariant();
-            if (raw.Length == 10)
-            {
-                // ISBN-10 -> EAN-13: 978 + first 9 digits + EAN check
-                var core = raw[..9];
-                if (!core.All(char.IsDigit)) throw new ArgumentException("Invalid ISBN-10.");
-                return EncodeEan13("978" + core, out checksumText);
-            }
-            if (raw.Length == 13)
-            {
-                if (!raw.All(char.IsDigit)) throw new ArgumentException("Invalid ISBN-13.");
-                return EncodeEan13(raw, out checksumText);
-            }
-
-            throw new ArgumentException("ISBN requires 10 or 13 characters.");
-        }
-
-        public static string EncodeIssnAsEan13(string value, out string checksumText)
-        {
-            // ISSN EAN-13: 977 + first 7 digits + 00 + EAN check
-            var raw = new string(value.Where(char.IsLetterOrDigit).ToArray()).ToUpperInvariant();
-            if (raw.Length != 8) throw new ArgumentException("ISSN requires 8 characters.");
-            var core = raw[..7];
-            if (!core.All(char.IsDigit)) throw new ArgumentException("Invalid ISSN.");
-            return EncodeEan13("977" + core + "00", out checksumText);
-        }
-
-        public static (IReadOnlyList<RadzenBarcode.BarcodeRect> bars, double vbWidth) EncodePharmacode(string value, double barHeight, int quietZone)
-        {
-            // Pharmacode one-track: numbers 3..131070
-            var digits = new string(value.Where(char.IsDigit).ToArray());
-            if (!int.TryParse(digits, NumberStyles.None, CultureInfo.InvariantCulture, out var n))
-            {
-                throw new ArgumentException("Pharmacode requires a numeric value.");
-            }
-            if (n < 3 || n > 131070)
-            {
-                throw new ArgumentException("Pharmacode value must be in range 3..131070.");
-            }
-
-            var bars = new List<(int width, bool isWide)>();
-            while (n > 0)
-            {
-                if (n % 2 == 0)
-                {
-                    bars.Add((2, true));
-                    n = (n - 2) / 2;
-                }
-                else
-                {
-                    bars.Add((1, false));
-                    n = (n - 1) / 2;
-                }
-            }
-            bars.Reverse();
-
-            double x = Math.Max(0, quietZone);
-            var rects = new List<RadzenBarcode.BarcodeRect>(bars.Count);
-            foreach (var b in bars)
-            {
-                rects.Add(new RadzenBarcode.BarcodeRect(x, 0, b.width, barHeight));
-                x += b.width + 1; // 1 module gap
-            }
-
-            var vbWidth = x + Math.Max(0, quietZone);
-            if (vbWidth <= 0) vbWidth = 1;
-            return (rects, vbWidth);
-        }
-
-        // POSTNET digit encoding from Wikipedia (weights 7,4,2,1,0). 1=full bar, 0=half bar.
-        static readonly Dictionary<char, string> PostnetDigitBits = new Dictionary<char, string>()
-        {
-            ['0'] = "11000",
-            ['1'] = "00011",
-            ['2'] = "00101",
-            ['3'] = "00110",
-            ['4'] = "01001",
-            ['5'] = "01010",
-            ['6'] = "01100",
-            ['7'] = "10001",
-            ['8'] = "10010",
-            ['9'] = "10100",
-        };
-
-        public static (IReadOnlyList<RadzenBarcode.BarcodeRect> bars, double vbWidth) EncodePostnet(string value, double barHeight, int quietZone, out string checksumText)
-        {
-            var digits = new string(value.Where(char.IsDigit).ToArray());
-            if ((digits.Length != 5 && digits.Length != 9 && digits.Length != 11))
-            {
-                throw new ArgumentException("POSTNET requires 5, 9, or 11 digits (ZIP / ZIP+4 / Delivery Point).");
-            }
-
-            int sum = digits.Sum(ch => ch - '0');
-            int check = (10 - (sum % 10)) % 10;
-            checksumText = check.ToString(CultureInfo.InvariantCulture);
-
-            var payload = digits + checksumText;
-
-            double fullH = barHeight;
-            double halfH = barHeight / 2.0;
-            double halfY = fullH - halfH;
-
-            double x = Math.Max(0, quietZone);
-            var rects = new List<RadzenBarcode.BarcodeRect>();
-
-            // Start frame bar (full)
-            rects.Add(new RadzenBarcode.BarcodeRect(x, 0, 1, fullH));
-            x += 2; // bar(1) + space(1)
-
-            foreach (var ch in payload)
-            {
-                var bits = PostnetDigitBits[ch];
-                for (int i = 0; i < 5; i++)
-                {
-                    bool full = bits[i] == '1';
-                    rects.Add(full
-                        ? new RadzenBarcode.BarcodeRect(x, 0, 1, fullH)
-                        : new RadzenBarcode.BarcodeRect(x, halfY, 1, halfH));
-                    x += 2;
-                }
-            }
-
-            // Stop frame bar (full)
-            rects.Add(new RadzenBarcode.BarcodeRect(x, 0, 1, fullH));
-            x += 1;
-
-            var vbWidth = x + Math.Max(0, quietZone);
-            if (vbWidth <= 0) vbWidth = 1;
-            return (rects, vbWidth);
-        }
-
-        // RM4SCC patterns and symbol matrix from Wikipedia:
-        // Top patterns (values 1..6) and Bottom patterns (values 1..6) are:
-        // 1=0011, 2=0101, 3=0110, 4=1001, 5=1010, 6=1100
-        static readonly string[] Rm4Patterns = new[] { "0011", "0101", "0110", "1001", "1010", "1100" };
-
-        // Matrix indexed by [topValue-1, bottomValue-1]
-        static readonly char[,] Rm4Matrix = new char[6, 6]
-        {
-            { '0', '1', '2', '3', '4', '5' },
-            { '6', '7', '8', '9', 'A', 'B' },
-            { 'C', 'D', 'E', 'F', 'G', 'H' },
-            { 'I', 'J', 'K', 'L', 'M', 'N' },
-            { 'O', 'P', 'Q', 'R', 'S', 'T' },
-            { 'U', 'V', 'W', 'X', 'Y', 'Z' }
-        };
-
-        static readonly Dictionary<char, (string top, string bottom)> Rm4CharToBits = BuildRm4CharToBits();
-
-        static Dictionary<char, (string top, string bottom)> BuildRm4CharToBits()
-        {
-            var dict = new Dictionary<char, (string top, string bottom)>();
-            for (int r = 0; r < 6; r++)
-            {
-                for (int c = 0; c < 6; c++)
-                {
-                    dict[Rm4Matrix[r, c]] = (Rm4Patterns[r], Rm4Patterns[c]);
-                }
-            }
-            return dict;
-        }
-
-        public static (IReadOnlyList<RadzenBarcode.BarcodeRect> bars, double vbWidth) EncodeRm4scc(string value, double barHeight, int quietZone, out string checksumText)
-        {
-            var text = new string(value.Where(char.IsLetterOrDigit).ToArray()).ToUpperInvariant();
-            if (string.IsNullOrEmpty(text))
-            {
-                throw new ArgumentException("RM4SCC requires alphanumeric input.");
-            }
-
-            // Only symbols present in the Wikipedia table (0-9, A-Z).
-            foreach (var ch in text)
-            {
-                if (!(ch is >= '0' and <= '9') && !(ch is >= 'A' and <= 'Z'))
-                {
-                    throw new ArgumentException($"RM4SCC does not support character '{ch}'.");
-                }
-            }
-
-            // Compute checksum per Wikipedia: sum top values and bottom values separately, mod 6, 0 => 6.
-            int sumTop = 0;
-            int sumBottom = 0;
-            foreach (var ch in text)
-            {
-                if (!Rm4CharToBits.TryGetValue(ch, out var bits))
-                {
-                    throw new ArgumentException($"RM4SCC does not support character '{ch}'.");
-                }
-                int t = Array.IndexOf(Rm4Patterns, bits.top) + 1;
-                int b = Array.IndexOf(Rm4Patterns, bits.bottom) + 1;
-                sumTop += t;
-                sumBottom += b;
-            }
-
-            int topVal = sumTop % 6;
-            topVal = topVal == 0 ? 6 : topVal;
-            int bottomVal = sumBottom % 6;
-            bottomVal = bottomVal == 0 ? 6 : bottomVal;
-
-            var checkChar = Rm4Matrix[topVal - 1, bottomVal - 1];
-
-            checksumText = checkChar.ToString();
-
-            // Encode start + data + checksum + stop.
-            // Start/stop are single bars; we use ascender for start and descender for stop.
-            double h = barHeight;
-            double third = h / 3.0;
-            double trackerY = third;
-            double trackerH = third;
-
-            RadzenBarcode.BarcodeRect BarRect(double x, bool top, bool bottom)
-            {
-                return (top, bottom) switch
-                {
-                    (false, false) => new RadzenBarcode.BarcodeRect(x, trackerY, 1, trackerH), // tracker
-                    (true, false) => new RadzenBarcode.BarcodeRect(x, 0, 1, trackerY + trackerH), // ascender (top + tracker)
-                    (false, true) => new RadzenBarcode.BarcodeRect(x, trackerY, 1, h - trackerY), // descender (tracker + bottom)
-                    (true, true) => new RadzenBarcode.BarcodeRect(x, 0, 1, h), // full
-                };
-            }
-
-            double xPos = Math.Max(0, quietZone);
-            var rects = new List<RadzenBarcode.BarcodeRect>();
-
-            // Start bar (ascender)
-            rects.Add(BarRect(xPos, top: true, bottom: false));
-            xPos += 2;
-
-            void AddSymbol(char ch)
-            {
-                var (topBits, bottomBits) = Rm4CharToBits[ch];
-                for (int i = 0; i < 4; i++)
-                {
-                    bool top = topBits[i] == '1';
-                    bool bottom = bottomBits[i] == '1';
-                    rects.Add(BarRect(xPos, top, bottom));
-                    xPos += 2;
-                }
-            }
-
-            foreach (var ch in text) AddSymbol(ch);
-            AddSymbol(checkChar);
-
-            // Stop bar (descender)
-            rects.Add(BarRect(xPos, top: false, bottom: true));
-            xPos += 1;
-
-            var vbWidth = xPos + Math.Max(0, quietZone);
-            if (vbWidth <= 0) vbWidth = 1;
-            return (rects, vbWidth);
-        }
-
-        public static string EncodeMsiPlessey(string value, out string checksumText)
-        {
-            var digits = new string(value.Where(char.IsDigit).ToArray());
-            if (digits.Length == 0) throw new ArgumentException("Plessey (MSI) requires numeric input.");
-
-            // Mod 10 (Luhn) check digit (common)
-            int check = ComputeLuhnCheckDigit(digits);
-            checksumText = check.ToString(CultureInfo.InvariantCulture);
-            digits += checksumText;
-
-            // MSI map from Wikipedia.
-            static string DigitMap(char d) => d switch
-            {
-                '0' => "100100100100",
-                '1' => "100100100110",
-                '2' => "100100110100",
-                '3' => "100100110110",
-                '4' => "100110100100",
-                '5' => "100110100110",
-                '6' => "100110110100",
-                '7' => "100110110110",
-                '8' => "110100100100",
-                '9' => "110100100110",
-                _ => throw new ArgumentException("MSI requires numeric input.")
-            };
-
-            var sb = new StringBuilder();
-            sb.Append("110"); // start
-            foreach (var ch in digits) sb.Append(DigitMap(ch));
-            sb.Append("1001"); // stop
-            return sb.ToString();
-        }
-
-        static int ComputeLuhnCheckDigit(string digits)
-        {
-            int sum = 0;
-            bool dbl = true;
-            for (int i = digits.Length - 1; i >= 0; i--)
-            {
-                int d = digits[i] - '0';
-                if (dbl)
-                {
-                    d *= 2;
-                    if (d > 9) d -= 9;
-                }
-                sum += d;
-                dbl = !dbl;
-            }
-            return (10 - (sum % 10)) % 10;
-        }
-
-        public static IReadOnlyList<int> EncodeTelepen(string value, out string checksumText)
-        {
-            // Telepen algorithm per Wikipedia: even parity bytes, little-endian bit order, modulo-127 checksum.
-            var bytes = Encoding.ASCII.GetBytes(value ?? string.Empty);
-
-            int sum = 0;
-            for (int i = 0; i < bytes.Length; i++)
-            {
-                if (bytes[i] > 0x7F) throw new ArgumentException("Telepen supports ASCII only.");
-                sum = (sum + bytes[i]) % 127;
-            }
-
-            int check = (127 - sum) % 127;
-            checksumText = check.ToString(CultureInfo.InvariantCulture);
-
-            // Build payload: start '_' + data + checksum byte + stop 'z'
-            var payload = new List<byte>(bytes.Length + 3) { (byte)'_' };
-            payload.AddRange(bytes);
-            payload.Add((byte)check);
-            payload.Add((byte)'z');
-
-            // Build bit stream LSB-first with even parity bit as MSB.
-            var bitStream = new List<int>(payload.Count * 8);
-            foreach (var b0 in payload)
-            {
-                int b = b0 & 0x7F;
-                int ones = CountBits(b);
-                int parityBit = (ones % 2 == 0) ? 0 : 1; // make total even
-                int byteWithParity = b | (parityBit << 7);
-
-                for (int i = 0; i < 8; i++)
-                {
-                    bitStream.Add((byteWithParity >> i) & 1);
-                }
-            }
-
-            // Encode bit stream into bar/space widths (narrow=1, wide=3).
-            // We produce alternating bar/space widths list, starting with bar.
-            const int narrow = 1;
-            const int wide = 3;
-            var widths = new List<int>();
-
-            int idx = 0;
-            while (idx < bitStream.Count)
-            {
-                if (bitStream[idx] == 1)
-                {
-                    // "1" => narrow bar, narrow space
-                    widths.Add(narrow);
-                    widths.Add(narrow);
-                    idx += 1;
-                    continue;
-                }
-
-                // starts with 0
-                if (idx + 1 < bitStream.Count && bitStream[idx + 1] == 0)
-                {
-                    // "00" => wide bar, narrow space
-                    widths.Add(wide);
-                    widths.Add(narrow);
-                    idx += 2;
-                    continue;
-                }
-
-                if (idx + 2 < bitStream.Count && bitStream[idx] == 0 && bitStream[idx + 1] == 1 && bitStream[idx + 2] == 0)
-                {
-                    // "010" => wide bar, wide space
-                    widths.Add(wide);
-                    widths.Add(wide);
-                    idx += 3;
-                    continue;
-                }
-
-                // General block 0 1^k 0 with k>=2
-                if (idx + 3 >= bitStream.Count || bitStream[idx] != 0 || bitStream[idx + 1] != 1)
-                {
-                    throw new ArgumentException("Invalid Telepen bit stream.");
-                }
-
-                int j = idx + 1;
-                while (j < bitStream.Count && bitStream[j] == 1) j++;
-                if (j >= bitStream.Count || bitStream[j] != 0)
-                {
-                    throw new ArgumentException("Invalid Telepen bit stream.");
-                }
-
-                int k = j - (idx + 1); // number of 1s
-                if (k < 2) throw new ArgumentException("Invalid Telepen bit stream.");
-
-                // leading "01" => narrow bar, wide space
-                widths.Add(narrow);
-                widths.Add(wide);
-
-                // middle extra 1s (k-2) => narrow bar, narrow space
-                for (int m = 0; m < k - 2; m++)
-                {
-                    widths.Add(narrow);
-                    widths.Add(narrow);
-                }
-
-                // trailing "10" => narrow bar, wide space
-                widths.Add(narrow);
-                widths.Add(wide);
-
-                idx = j + 1;
-            }
-
-            return widths;
-        }
-
-        static int CountBits(int v)
-        {
-            int c = 0;
-            while (v != 0)
-            {
-                c += v & 1;
-                v >>= 1;
-            }
-            return c;
+            return string.Empty;
        }
    }
 }
-
-
--- a/Radzen.Blazor/RadzenBarcodeEncoder.cs
+++ b/Radzen.Blazor/RadzenBarcodeEncoder.cs
--- a/Radzen.Blazor/RadzenDataGrid.razor.cs
+++ b/Radzen.Blazor/RadzenDataGrid.razor.cs
@@ -10,6 +10,7 @@ using System.Collections.ObjectModel;
 using System.Collections.Specialized;
 using System.Globalization;
 using System.Linq;
+using System.Linq.Dynamic.Core;
 using System.Text.Json;
 using System.Threading.Tasks;

@@ -892,7 +893,7 @@ namespace Radzen.Blazor
            }
        }

-        void ToggleColumns()
+        async Task ToggleColumns()
        {
            if (selectedColumns == null)
            {
@@ -906,8 +907,13 @@ namespace Radzen.Blazor
                c.SetVisible(selected.Contains(c));
            }

-            PickedColumnsChanged.InvokeAsync(new DataGridPickedColumnsChangedEventArgs<TItem>() { Columns = selected });
+            await PickedColumnsChanged.InvokeAsync(new DataGridPickedColumnsChangedEventArgs<TItem>() { Columns = selected });
            SaveSettings();
+
+            if (QueryOnlyVisibleColumns)
+            {
+                await Reload();
+            }
        }

        /// <summary>
@@ -1627,6 +1633,13 @@ namespace Radzen.Blazor
        [Parameter]
        public int ColumnsPickerMaxSelectedLabels { get; set; } = 2;

+        /// <summary>
+        /// Gets or sets a value indicating whether only visible columns are included in the query.
+        /// </summary>
+        /// <value><c>true</c> if only visible columns are included; otherwise, <c>false</c>.</value>
+        [Parameter]
+        public bool QueryOnlyVisibleColumns { get; set; }
+
        /// <summary>
        /// Gets or sets the column picker all columns text.
        /// </summary>
@@ -2016,7 +2029,8 @@ namespace Radzen.Blazor
                    }
                }

-                return view;
+                return QueryOnlyVisibleColumns ? view
+                    .Select(allColumns.Where(c => c.GetVisible() && !string.IsNullOrEmpty(c.Property)).Select(c => c.Property)) : view;
            }
        }

@@ -2496,7 +2510,7 @@ namespace Radzen.Blazor

        internal Tuple<GroupRowRenderEventArgs, IReadOnlyDictionary<string, object>> GroupRowAttributes(RadzenDataGridGroupRow<TItem> item)
        {
-            var args = new Radzen.GroupRowRenderEventArgs() { Group = item.Group, FirstRender = firstRender };
+            var args = new Radzen.GroupRowRenderEventArgs() { Group = item.Group, FirstRender = firstRender, Expandable = item.GroupResult.Count > 0 };

            if (GroupRowRender != null)
            {
@@ -3576,6 +3590,59 @@ namespace Radzen.Blazor
                }
            }

+            if (expandedItems != null)
+            {
+                expandedItems.Clear();
+            }
+
+            if (editedItems != null)
+            {
+                editedItems.Clear();
+            }
+
+            if (editContexts != null)
+            {
+                editContexts.Clear();
+            }
+
+            if (childData != null)
+            {
+                childData.Clear();
+            }
+
+            if (selectedItems != null)
+            {
+                selectedItems.Clear();
+            }
+
+            if (rowSpans != null)
+            {
+                rowSpans.Clear();
+            }
+
+            if (columns != null)
+            {
+                columns.Clear();
+            }
+
+            if (allPickableColumns != null)
+            {
+                allPickableColumns.Clear();
+            }
+
+            if (allColumns != null)
+            {
+                allColumns.Clear();
+            }
+
+            if (childColumns != null)
+            {
+                childColumns.Clear();
+            }
+
+            _value = null;
+            Data = null;
+
            GC.SuppressFinalize(this);
        }

--- a/Radzen.Blazor/RadzenDataGridColumn.razor.cs
+++ b/Radzen.Blazor/RadzenDataGridColumn.razor.cs
@@ -1310,7 +1310,7 @@ namespace Radzen.Blazor

        internal bool HasCustomFilter()
        {
-            return GetFilterOperator() == FilterOperator.Custom && GetCustomFilterExpression() != null;
+            return GetFilterOperator() == FilterOperator.Custom && !string.IsNullOrEmpty(GetCustomFilterExpression());
        }

        internal bool HasActiveFilter()
--- a/Radzen.Blazor/RadzenDataGridGroupRow.razor
+++ b/Radzen.Blazor/RadzenDataGridGroupRow.razor
@@ -26,9 +26,12 @@
        }
        <td class="rz-col-icon">
            <span class="rz-column-title"></span>
-            <a id="@(Grid.GridId() + Group.GetHashCode())" aria-label=@Grid.ExpandGroupAriaLabel @onclick:preventDefault="true" @onclick="@(_ => Grid.ExpandGroupItem(this, rowArgs?.Item1.Expanded ?? false))">
-                <span class="@(Grid.ExpandedGroupItemStyle(this, Grid.allGroupsExpanded != null ? Grid.allGroupsExpanded : rowArgs?.Item1.Expanded ?? false))"></span>
-            </a>
+            @if (rowArgs?.Item1.Expandable == true)
+            {
+                <a id="@(Grid.GridId() + Group.GetHashCode())" aria-label=@Grid.ExpandGroupAriaLabel @onclick:preventDefault="true" @onclick="@(_ => Grid.ExpandGroupItem(this, rowArgs?.Item1.Expanded))">
+                    <span class="@(Grid.ExpandedGroupItemStyle(this, Grid.allGroupsExpanded != null ? Grid.allGroupsExpanded : rowArgs?.Item1.Expanded))"></span>
+                </a>
+            }
        </td>
    }
    <td colspan="@(TotalColumnCount + (Grid?.Groups.Count ?? 0) - 1 - Group.Level + ((Grid?.Template != null && Grid?.ShowExpandColumn == true) ? 1 : 0))">
--- a/Radzen.Blazor/RadzenListBox.razor.cs
+++ b/Radzen.Blazor/RadzenListBox.razor.cs
@@ -100,7 +100,10 @@ namespace Radzen.Blazor
            if (AllowFiltering && key.Length == 1 && JSRuntime != null)
            {
                await JSRuntime.InvokeVoidAsync("Radzen.focusElement", SearchID);
-                await JSRuntime.InvokeAsync<string>("Radzen.setInputValue", search, key);
+                if (JSRuntime is not IJSInProcessRuntime)
+                {
+                    await JSRuntime.InvokeAsync<string>("Radzen.setInputValue", search, key);
+                }
            }

            await OnKeyPress(args, false);
--- a/Radzen.Blazor/RadzenPager.razor.cs
+++ b/Radzen.Blazor/RadzenPager.razor.cs
@@ -349,6 +349,7 @@ namespace Radzen.Blazor
                skip = page * PageSize;
                await InvokeAsync(Reload);
                await PageChanged.InvokeAsync(new PagerEventArgs() { Skip = skip, Top = PageSize, PageIndex = CurrentPage });
+                StateHasChanged();
            }
        }

--- a/Radzen.Blazor/RadzenQRCode.razor
+++ b/Radzen.Blazor/RadzenQRCode.razor
@@ -6,6 +6,8 @@
    int n = modules.GetLength(0);
    int vb = n + 8; // quiet zone

+    var backgroundFill = GetSvgFillParts(Background);
+
    // --- Center Image math (viewBox units == modules incl. quiet zone) ---
    bool hasImage = !string.IsNullOrWhiteSpace(Image);
    // Clamp percent for scan reliability (5%..60% of QR inner box)
@@ -32,14 +34,14 @@
     height="@Size"
     @ref="@Element" style="@Style" @attributes="Attributes" class="@GetCssClass()" id="@GetId()">
    <!-- Background -->
-    <rect x="0" y="0" width="@vb" height="@vb" fill="@Background" />
+    <rect x="0" y="0" width="@vb" height="@vb" fill="@backgroundFill.Color" fill-opacity="@Format(backgroundFill.Opacity)" />

    @if (modules is not null)
    {
        <!-- finder patterns / eyes -->
-        @DrawEye(4, 4, EyeShapeTopLeft ?? EyeShape, EyeColorTopLeft ?? EyeColor ?? Foreground)
-        @DrawEye(vb - 11, 4, EyeShapeTopRight ?? EyeShape, EyeColorTopRight ?? EyeColor ?? Foreground)
-        @DrawEye(4, vb - 11, EyeShapeBottomLeft ?? EyeShape, EyeColorBottomLeft ?? EyeColor ?? Foreground)
+        @DrawEye(4, 4, EyeShapeTopLeft ?? EyeShape, EyeColorTopLeft ?? EyeColor ?? Foreground, $"{GetId()}-eye-0")
+        @DrawEye(vb - 11, 4, EyeShapeTopRight ?? EyeShape, EyeColorTopRight ?? EyeColor ?? Foreground, $"{GetId()}-eye-1")
+        @DrawEye(4, vb - 11, EyeShapeBottomLeft ?? EyeShape, EyeColorBottomLeft ?? EyeColor ?? Foreground, $"{GetId()}-eye-2")

        <!-- data modules (skip eye regions) -->
        @for (var r = 0; r < n; r++)
@@ -95,7 +97,7 @@
 {
    // Draw a 7x7 eye whose top-left screen coordinate (including quiet zone) is (x,y).
    // NOTE: x,y are *SVG units* (already offset by quiet zone).
-    private RenderFragment DrawEye(double x, double y, QRCodeEyeShape shape, string color)
+    private RenderFragment DrawEye(double x, double y, QRCodeEyeShape shape, string color, string maskId)
    {
        return __builder =>
        {
@@ -104,10 +106,14 @@
                {
                    case QRCodeEyeShape.Rounded:
                        {
-                            <!-- Outer 7x7 rounded ring -->
-                            <rect x="@Format(x)" y="@Format(y)" width="@Format(7)" height="@Format(7)" rx="@Format(1.25)" ry="@Format(1.25)" fill="@color" />
-                            <!-- Inner hole (background) -->
-                            <rect x="@Format(x + 1)" y="@Format(y + 1)" width="@Format(5)" height="@Format(5)" rx="@Format(0.25)" ry="@Format(0.25)" fill="@Background" />
+                            <defs>
+                                <mask id="@maskId" maskUnits="userSpaceOnUse">
+                                    <rect x="@Format(x)" y="@Format(y)" width="@Format(7)" height="@Format(7)" rx="@Format(1.25)" ry="@Format(1.25)" fill="white" />
+                                    <rect x="@Format(x + 1)" y="@Format(y + 1)" width="@Format(5)" height="@Format(5)" rx="@Format(0.25)" ry="@Format(0.25)" fill="black" />
+                                </mask>
+                            </defs>
+                            <!-- Outer 7x7 rounded ring with transparent hole -->
+                            <rect x="@Format(x)" y="@Format(y)" width="@Format(7)" height="@Format(7)" rx="@Format(1.25)" ry="@Format(1.25)" fill="@color" mask="url(#@maskId)" />
                            <!-- Pupil 3x3 rounded -->
                            <rect x="@Format(x + 2)" y="@Format(y + 2)" width="@Format(3)" height="@Format(3)" rx="@Format(0.75)" ry="@Format(0.75)" fill="@color" />
                        }
@@ -115,9 +121,14 @@

                    case QRCodeEyeShape.Framed:
                        {
-                            <!-- Bold square frame (thickness ~1.2) -->
-                            <rect x="@Format(x)" y="@Format(y)" width="@Format(7)" height="@Format(7)" fill="@color" />
-                            <rect x="@Format(x + 1.2)" y="@Format(y + 1.2)" width="@Format(7 - 2 * 1.2)" height="@Format(7 - 2 * 1.2)" fill="@Background" />
+                            <defs>
+                                <mask id="@maskId" maskUnits="userSpaceOnUse">
+                                    <rect x="@Format(x)" y="@Format(y)" width="@Format(7)" height="@Format(7)" fill="white" />
+                                    <rect x="@Format(x + 1.2)" y="@Format(y + 1.2)" width="@Format(7 - 2 * 1.2)" height="@Format(7 - 2 * 1.2)" fill="black" />
+                                </mask>
+                            </defs>
+                            <!-- Bold square frame (thickness ~1.2) with transparent hole -->
+                            <rect x="@Format(x)" y="@Format(y)" width="@Format(7)" height="@Format(7)" fill="@color" mask="url(#@maskId)" />
                            <!-- Pupil -->
                            <rect x="@Format(x + 2)" y="@Format(y + 2)" width="@Format(3)" height="@Format(3)" fill="@color" />
                        }
@@ -126,9 +137,14 @@
                    case QRCodeEyeShape.Square:
                    default:
                        {
-                            <!-- Classic square: 7x7 outer, 5x5 inner (background), 3x3 pupil -->
-                            <rect x="@Format(x)" y="@Format(y)" width="@Format(7)" height="@Format(7)" fill="@color" />
-                            <rect x="@Format(x + 1)" y="@Format(y + 1)" width="@Format(5)" height="@Format(5)" fill="@Background" />
+                            <defs>
+                                <mask id="@maskId" maskUnits="userSpaceOnUse">
+                                    <rect x="@Format(x)" y="@Format(y)" width="@Format(7)" height="@Format(7)" fill="white" />
+                                    <rect x="@Format(x + 1)" y="@Format(y + 1)" width="@Format(5)" height="@Format(5)" fill="black" />
+                                </mask>
+                            </defs>
+                            <!-- Classic square: 7x7 outer with transparent 5x5 hole -->
+                            <rect x="@Format(x)" y="@Format(y)" width="@Format(7)" height="@Format(7)" fill="@color" mask="url(#@maskId)" />
                            <rect x="@Format(x + 2)" y="@Format(y + 2)" width="@Format(3)" height="@Format(3)" fill="@color" />
                        }
                        break;
--- a/Radzen.Blazor/RadzenQRCode.razor.cs
+++ b/Radzen.Blazor/RadzenQRCode.razor.cs
@@ -1,8 +1,9 @@
 using Microsoft.AspNetCore.Components;
+using Microsoft.JSInterop;
+using Radzen.Blazor.Rendering;
 using System;
-using System.Collections.Generic;
 using System.Globalization;
-using System.Text;
+using System.Threading.Tasks;

 namespace Radzen.Blazor
 {
@@ -88,19 +89,19 @@ namespace Radzen.Blazor
        /// <value>The size in CSS units. Default is "100%".</value>
        [Parameter] public string Size { get; set; } = "100%";

-		/// <summary>
-		/// Gets or sets the color of the QR code modules (the dark squares/dots).
-		/// Supports any valid CSS color. Use high contrast with background for best scanability.
-		/// </summary>
-		/// <value>The foreground color. Default is "#000" (black).</value>
-		[Parameter] public string Foreground { get; set; } = "#000";
+        /// <summary>
+        /// Gets or sets the color of the QR code modules (the dark squares/dots).
+        /// Supports any valid CSS color. Use high contrast with background for best scanability.
+        /// </summary>
+        /// <value>The foreground color. Default is "#000" (black).</value>
+        [Parameter] public string Foreground { get; set; } = "#000";

-		/// <summary>
-		/// Gets or sets the background color of the QR code.
-		/// Should contrast well with the foreground color for reliable scanning.
-		/// </summary>
-		/// <value>The background color. Default is "#FFF" (white).</value>
-		[Parameter] public string Background { get; set; } = "#FFF";
+        /// <summary>
+        /// Gets or sets the background color of the QR code.
+        /// Should contrast well with the foreground color for reliable scanning.
+        /// </summary>
+        /// <value>The background color. Default is "#FFF" (white).</value>
+        [Parameter] public string Background { get; set; } = "#FFF";

        /// <summary>
        /// Gets or sets the visual shape of the QR code modules (data squares).
@@ -156,6 +157,28 @@ namespace Radzen.Blazor
        /// </summary>
        protected override string GetComponentCssClass() => "rz-qrcode";
        private static string Format(double v) => v.ToString(CultureInfo.InvariantCulture);
+        private static (string Color, double Opacity) GetSvgFillParts(string? color)
+        {
+            if (string.IsNullOrWhiteSpace(color))
+            {
+                return ("none", 1);
+            }
+
+            if (string.Equals(color, "transparent", StringComparison.OrdinalIgnoreCase))
+            {
+                return ("rgb(0, 0, 0)", 0);
+            }
+
+            var rgb = RGB.Parse(color);
+            if (rgb == null)
+            {
+                return (color, 1);
+            }
+
+            var opacity = Math.Clamp(rgb.Alpha, 0, 1);
+            var fill = $"rgb({Format(rgb.Red)}, {Format(rgb.Green)}, {Format(rgb.Blue)})";
+            return (fill, opacity);
+        }
        private static bool IsFinderCell(int r, int c, int n)
        {
            bool inTL = r < 7 && c < 7;
@@ -163,6 +186,21 @@ namespace Radzen.Blazor
            bool inBL = r >= n - 7 && c < 7;
            return inTL || inTR || inBL;
        }
+
+        /// <summary>
+        /// Returns the SVG markup of the rendered QR code as a string.
+        /// </summary>
+        /// <returns>
+        /// A <see cref="Task{String}"/> representing the asynchronous operation. The task result contains the SVG markup of the QR code.
+        /// </returns>
+        public async Task<string> ToSvg()
+        {
+            if (JSRuntime != null)
+            {
+                return await JSRuntime.InvokeAsync<string>("Radzen.outerHTML", Element);
+            }
+            return string.Empty;
+        }
    }
 }

--- a/Radzen.Blazor/RadzenQREncoder.cs
+++ b/Radzen.Blazor/RadzenQREncoder.cs
@@ -1,7 +1,8 @@
-using Microsoft.AspNetCore.Components;
+using Microsoft.AspNetCore.Components;
 using System;
 using System.Collections.Generic;
 using System.Globalization;
+using Radzen.Blazor.Rendering;
 using System.Text;

 namespace Radzen.Blazor;
@@ -29,7 +30,10 @@ public enum RadzenQREcc
    High
 }

-internal static class RadzenQREncoder
+/// <summary>
+/// Provides QR encoding utilities for UTF-8 strings and raw bytes.
+/// </summary>
+public static class RadzenQREncoder
 {
    /// <summary>Encode a UTF-8 string into a QR module matrix.</summary>
    public static bool[,] EncodeUtf8(string value, RadzenQREcc ecc, int minVersion = 1, int maxVersion = 40)
@@ -93,6 +97,8 @@ internal static class RadzenQREncoder
    /// <summary>Encode raw bytes into a QR module matrix.</summary>
    public static bool[,] EncodeBytes(byte[] data, RadzenQREcc ecc = RadzenQREcc.Medium, int minVersion = 1, int maxVersion = 40)
    {
+        ArgumentNullException.ThrowIfNull(data);
+
        if (minVersion < 1 || maxVersion > 40 || minVersion > maxVersion)
            throw new ArgumentOutOfRangeException(nameof(minVersion), "Version range must be within 1..40");

@@ -152,24 +158,93 @@ internal static class RadzenQREncoder
    }

    /// <summary>Render a module matrix into an SVG string with a 4-module quiet zone.</summary>
-    public static string ToSvg(bool[,] modules, int moduleSize = 8, string foreground = "#000000", string background = "#FFFFFF")
+    public static string ToSvg(
+        bool[,] modules,
+        int moduleSize = 8,
+        string foreground = "#000000",
+        string background = "#FFFFFF",
+        QRCodeModuleShape moduleShape = QRCodeModuleShape.Square,
+        QRCodeEyeShape eyeShape = QRCodeEyeShape.Square,
+        QRCodeEyeShape? eyeShapeTopLeft = null,
+        QRCodeEyeShape? eyeShapeTopRight = null,
+        QRCodeEyeShape? eyeShapeBottomLeft = null,
+        string? eyeColor = null,
+        string? eyeColorTopLeft = null,
+        string? eyeColorTopRight = null,
+        string? eyeColorBottomLeft = null,
+        string? image = null,
+        string imageBackground = "#FFF")
    {
+        ArgumentNullException.ThrowIfNull(modules);
+        ArgumentNullException.ThrowIfNull(foreground);
+        ArgumentNullException.ThrowIfNull(background);
+        ArgumentNullException.ThrowIfNull(imageBackground);
+
        int n = modules.GetLength(0);
        int vb = n + 8;  // 4 modules of quiet zone on each side
        int px = vb * moduleSize;

        var sb = new StringBuilder(n * n + 1024);
        sb.Append(CultureInfo.InvariantCulture, $"<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"{px}\" height=\"{px}\" viewBox=\"0 0 {vb} {vb}\" shape-rendering=\"crispEdges\">");
-        sb.Append(CultureInfo.InvariantCulture, $"<rect x=\"0\" y=\"0\" width=\"{vb}\" height=\"{vb}\" fill=\"{background}\"/>");
+        var backgroundFill = GetSvgFillParts(background);
+        sb.Append(CultureInfo.InvariantCulture, $"<rect x=\"0\" y=\"0\" width=\"{vb}\" height=\"{vb}\" fill=\"{backgroundFill.Color}\" fill-opacity=\"{Format(backgroundFill.Opacity)}\"/>");
+
+        var baseEyeColor = eyeColor ?? foreground;
+        AppendEye(sb, 4, 4, eyeShapeTopLeft ?? eyeShape, eyeColorTopLeft ?? baseEyeColor, "eye-mask-0");
+        AppendEye(sb, vb - 11, 4, eyeShapeTopRight ?? eyeShape, eyeColorTopRight ?? baseEyeColor, "eye-mask-1");
+        AppendEye(sb, 4, vb - 11, eyeShapeBottomLeft ?? eyeShape, eyeColorBottomLeft ?? baseEyeColor, "eye-mask-2");

        for (int r = 0; r < n; r++)
        {
            for (int c = 0; c < n; c++)
            {
-                if (modules[r, c])
-                    sb.Append(CultureInfo.InvariantCulture, $"<rect x=\"{c + 4}\" y=\"{r + 4}\" width=\"1\" height=\"1\" fill=\"{foreground}\"/>");
+                if (!modules[r, c]) continue;
+                if (IsFinderCell(r, c, n)) continue;
+
+                var x = c + 4;
+                var y = r + 4;
+
+                if (moduleShape == QRCodeModuleShape.Circle)
+                {
+                    sb.Append(CultureInfo.InvariantCulture, $"<circle cx=\"{Format(x + 0.5)}\" cy=\"{Format(y + 0.5)}\" r=\"0.5\" fill=\"{foreground}\"/>");
+                }
+                else if (moduleShape == QRCodeModuleShape.Rounded)
+                {
+                    sb.Append(CultureInfo.InvariantCulture, $"<rect x=\"{Format(x)}\" y=\"{Format(y)}\" width=\"1\" height=\"1\" rx=\"0.25\" ry=\"0.25\" fill=\"{foreground}\"/>");
+                }
+                else
+                {
+                    sb.Append(CultureInfo.InvariantCulture, $"<rect x=\"{Format(x)}\" y=\"{Format(y)}\" width=\"1\" height=\"1\" fill=\"{foreground}\"/>");
+                }
            }
        }
+
+        if (!string.IsNullOrWhiteSpace(image))
+        {
+            const double imageSizePercent = 20;
+            const double imagePaddingModules = 1.0;
+            const double imageCornerRadius = 0.75;
+            const double imageBackgroundOpacity = 1.0;
+
+            double pct = Math.Clamp(imageSizePercent, 5, 60);
+            double boxModules = Math.Max(5, Math.Round(n * (pct / 100.0)));
+            double pad = Math.Max(0, imagePaddingModules);
+
+            double cutoutW = boxModules + 2 * pad;
+            double cutoutH = boxModules + 2 * pad;
+
+            double centerX = vb / 2.0;
+            double centerY = vb / 2.0;
+
+            double cutoutX = centerX - cutoutW / 2.0;
+            double cutoutY = centerY - cutoutH / 2.0;
+            double imgX = centerX - boxModules / 2.0;
+            double imgY = centerY - boxModules / 2.0;
+
+            sb.Append(CultureInfo.InvariantCulture, $"<rect x=\"{Format(cutoutX)}\" y=\"{Format(cutoutY)}\" width=\"{Format(cutoutW)}\" height=\"{Format(cutoutH)}\" rx=\"{Format(imageCornerRadius)}\" ry=\"{Format(imageCornerRadius)}\" fill=\"{imageBackground}\" fill-opacity=\"{Format(Math.Clamp(imageBackgroundOpacity, 0, 1))}\"/>");
+            sb.Append(CultureInfo.InvariantCulture, $"<image x=\"{Format(imgX)}\" y=\"{Format(imgY)}\" width=\"{Format(boxModules)}\" height=\"{Format(boxModules)}\" preserveAspectRatio=\"xMidYMid meet\" href=\"{image}\"/>");
+        }
+
        sb.Append("</svg>");
        return sb.ToString();
    }
@@ -1065,4 +1140,69 @@ internal static class RadzenQREncoder
            for (int i = len - 1; i >= 0; i--) this.Add((val >> i) & 1);
        }
    }
+
+    private static bool IsFinderCell(int r, int c, int n)
+    {
+        bool inTL = r < 7 && c < 7;
+        bool inTR = r < 7 && c >= n - 7;
+        bool inBL = r >= n - 7 && c < 7;
+        return inTL || inTR || inBL;
+    }
+
+    private static void AppendEye(StringBuilder sb, double x, double y, QRCodeEyeShape shape, string color, string maskId)
+    {
+        switch (shape)
+        {
+            case QRCodeEyeShape.Rounded:
+                sb.Append(CultureInfo.InvariantCulture, $"<defs><mask id=\"{maskId}\" maskUnits=\"userSpaceOnUse\">");
+                sb.Append(CultureInfo.InvariantCulture, $"<rect x=\"{Format(x)}\" y=\"{Format(y)}\" width=\"7\" height=\"7\" rx=\"1.25\" ry=\"1.25\" fill=\"white\"/>");
+                sb.Append(CultureInfo.InvariantCulture, $"<rect x=\"{Format(x + 1)}\" y=\"{Format(y + 1)}\" width=\"5\" height=\"5\" rx=\"0.25\" ry=\"0.25\" fill=\"black\"/>");
+                sb.Append("</mask></defs>");
+                sb.Append(CultureInfo.InvariantCulture, $"<rect x=\"{Format(x)}\" y=\"{Format(y)}\" width=\"7\" height=\"7\" rx=\"1.25\" ry=\"1.25\" fill=\"{color}\" mask=\"url(#{maskId})\"/>");
+                sb.Append(CultureInfo.InvariantCulture, $"<rect x=\"{Format(x + 2)}\" y=\"{Format(y + 2)}\" width=\"3\" height=\"3\" rx=\"0.75\" ry=\"0.75\" fill=\"{color}\"/>");
+                break;
+            case QRCodeEyeShape.Framed:
+                sb.Append(CultureInfo.InvariantCulture, $"<defs><mask id=\"{maskId}\" maskUnits=\"userSpaceOnUse\">");
+                sb.Append(CultureInfo.InvariantCulture, $"<rect x=\"{Format(x)}\" y=\"{Format(y)}\" width=\"7\" height=\"7\" fill=\"white\"/>");
+                sb.Append(CultureInfo.InvariantCulture, $"<rect x=\"{Format(x + 1.2)}\" y=\"{Format(y + 1.2)}\" width=\"{Format(7 - 2 * 1.2)}\" height=\"{Format(7 - 2 * 1.2)}\" fill=\"black\"/>");
+                sb.Append("</mask></defs>");
+                sb.Append(CultureInfo.InvariantCulture, $"<rect x=\"{Format(x)}\" y=\"{Format(y)}\" width=\"7\" height=\"7\" fill=\"{color}\" mask=\"url(#{maskId})\"/>");
+                sb.Append(CultureInfo.InvariantCulture, $"<rect x=\"{Format(x + 2)}\" y=\"{Format(y + 2)}\" width=\"3\" height=\"3\" fill=\"{color}\"/>");
+                break;
+            case QRCodeEyeShape.Square:
+            default:
+                sb.Append(CultureInfo.InvariantCulture, $"<defs><mask id=\"{maskId}\" maskUnits=\"userSpaceOnUse\">");
+                sb.Append(CultureInfo.InvariantCulture, $"<rect x=\"{Format(x)}\" y=\"{Format(y)}\" width=\"7\" height=\"7\" fill=\"white\"/>");
+                sb.Append(CultureInfo.InvariantCulture, $"<rect x=\"{Format(x + 1)}\" y=\"{Format(y + 1)}\" width=\"5\" height=\"5\" fill=\"black\"/>");
+                sb.Append("</mask></defs>");
+                sb.Append(CultureInfo.InvariantCulture, $"<rect x=\"{Format(x)}\" y=\"{Format(y)}\" width=\"7\" height=\"7\" fill=\"{color}\" mask=\"url(#{maskId})\"/>");
+                sb.Append(CultureInfo.InvariantCulture, $"<rect x=\"{Format(x + 2)}\" y=\"{Format(y + 2)}\" width=\"3\" height=\"3\" fill=\"{color}\"/>");
+                break;
+        }
+    }
+
+    private static (string Color, double Opacity) GetSvgFillParts(string? color)
+    {
+        if (string.IsNullOrWhiteSpace(color))
+        {
+            return ("none", 1);
+        }
+
+        if (string.Equals(color, "transparent", StringComparison.OrdinalIgnoreCase))
+        {
+            return ("rgb(0, 0, 0)", 0);
+        }
+
+        var rgb = RGB.Parse(color);
+        if (rgb == null)
+        {
+            return (color, 1);
+        }
+
+        var opacity = Math.Clamp(rgb.Alpha, 0, 1);
+        var fill = $"rgb({Format(rgb.Red)}, {Format(rgb.Green)}, {Format(rgb.Blue)})";
+        return (fill, opacity);
+    }
+
+    private static string Format(double v) => v.ToString(CultureInfo.InvariantCulture);
 }
--- a/Radzen.Blazor/Rendering/ValueAxis.razor
+++ b/Radzen.Blazor/Rendering/ValueAxis.razor
@@ -6,9 +6,9 @@
    <Line class="rz-line" X1="@x1" Y1="@y1" X2="@x1" Y2="@y2" Stroke="@YAxis.Stroke" StrokeWidth="@YAxis.StrokeWidth" LineType="@YAxis.LineType" />
    @for (var idx = start; idx <= end; idx += step)
    {
-        var value = Chart?.ValueScale?.Value(idx) ?? 0;
+        var value = Chart?.ValueScale?.Value(idx);
        var y = Chart?.ValueScale?.Scale(idx) ?? 0;
-        var text = YAxis != null && Chart?.ValueScale != null ? YAxis.Format(Chart.ValueScale, value) : "";
+        var text = value != null && YAxis != null && Chart?.ValueScale != null ? YAxis.Format(Chart.ValueScale, value) : "";

        if (YAxis?.Ticks?.Template != null)
        {
@@ -18,7 +18,7 @@
                @YAxis.Ticks.Template(context)
            </ValueAxisTick>
        } 
-        else
+        else if (!String.IsNullOrEmpty(text))
        {
            <ValueAxisTick X="@x1" Y="@y" Text="@text" Stroke="@(YAxis?.Ticks?.Stroke ?? YAxis?.Stroke)" StrokeWidth="@(YAxis?.Ticks?.StrokeWidth ?? 0)" LineType="@(YAxis?.Ticks?.LineType ?? LineType.Solid)"/>
        }
--- a/Radzen.Blazor/wwwroot/Radzen.Blazor.js
+++ b/Radzen.Blazor/wwwroot/Radzen.Blazor.js
@@ -38,6 +38,17 @@ window.Radzen = {
            }
        };
    },
+    downloadFile: function (fileName, data, mimeType) {
+        const blob = new Blob([data], { type: mimeType });
+        const url = URL.createObjectURL(blob);
+
+        const a = document.createElement("a");
+        a.href = url;
+        a.download = fileName;
+        a.click();
+
+        URL.revokeObjectURL(url);
+    },
    mask: function (id, mask, pattern, characterPattern) {
      var el = document.getElementById(id);
      if (el) {
@@ -2315,6 +2326,12 @@ window.Radzen = {
    var rect = el.getBoundingClientRect();
    return { left: rect.left, top: rect.top, width: rect.width, height: rect.height };
  },
+  outerHTML: function (arg) {
+    var el = arg instanceof Element || arg instanceof HTMLDocument
+        ? arg
+        : document.getElementById(arg);
+    return el ? el.outerHTML : '';
+  },
  endDrag: function (ref) {
    document.removeEventListener('mousemove', ref.mouseMoveHandler);
    document.removeEventListener('mouseup', ref.mouseUpHandler);
--- a/RadzenBlazorDemos/Pages/BarcodeTypes.razor
+++ b/RadzenBlazorDemos/Pages/BarcodeTypes.razor
@@ -1,7 +1,9 @@
+@inject IJSRuntime JS
+
 <RadzenRow Gap="2rem">
    <RadzenColumn Size="12" SizeMD="6">
        <RadzenStack AlignItems="AlignItems.Center" JustifyContent="JustifyContent.Center" Style="height: 100%;">
-            <RadzenBarcode Value="@value"
+            <RadzenBarcode @ref="barCode" Value="@value"
                          Type="@type"
                          Foreground="@foreground"
                          Background="@background"
@@ -79,6 +81,11 @@
                <RadzenTextArea @bind-Value="@valueStyle" class="rz-w-100" Rows="3" />
            </RadzenFormField>

+            <RadzenButton Text="Save SVG"
+                          Icon="download"
+                          ButtonStyle="ButtonStyle.Primary"
+                          Click="@(_ => SaveSvg())" />
+
            <RadzenText TextStyle="TextStyle.Caption">
                Tip: some types require numeric-only input (EAN/UPC/ITF/MSI/POSTNET/Pharmacode). Changing the type auto-fills a valid sample value.
            </RadzenText>
@@ -87,6 +94,7 @@
 </RadzenRow>

@code {
+    RadzenBarcode barCode;
    RadzenBarcodeType type = RadzenBarcodeType.Code128;
    IEnumerable<RadzenBarcodeType> types = Enum.GetValues<RadzenBarcodeType>();

@@ -123,6 +131,19 @@
            _ => value
        };
    }
+
+    async Task SaveSvg(bool custom = false)
+    {
+        var svg = custom ? RadzenBarcodeEncoder.ToSvg(
+            type,
+            value,
+            barHeight: barHeight,
+            quietZoneModules: quietZone,
+            foreground: foreground,
+            background: background) : await barCode.ToSvg();
+
+        await JS.InvokeVoidAsync("Radzen.downloadFile", "barcode.svg", svg, "image/svg+xml;charset=utf-8");
+    }
 }


--- a/RadzenBlazorDemos/Pages/DataGridColumnPicking.razor
+++ b/RadzenBlazorDemos/Pages/DataGridColumnPicking.razor
@@ -11,8 +11,7 @@
    ColumnWidth="300px"
    AllowColumnPicking="true"
    PickedColumnsChanged="@PickedColumnsChanged"
-    ColumnsPickerAllowFiltering="true"
->
+    ColumnsPickerAllowFiltering="true" QueryOnlyVisibleColumns="true">
    <Columns>
        <RadzenDataGridColumn
            Property=@nameof(Employee.EmployeeID)
--- a/RadzenBlazorDemos/Pages/DataGridColumnPickingPage.razor
+++ b/RadzenBlazorDemos/Pages/DataGridColumnPickingPage.razor
@@ -7,6 +7,7 @@
    Enable default column picker by setting the <strong>AllowColumnPicking</strong> grid property to true.
    You can disable picking for specific columns by setting their <strong>Pickable</strong> property to false.
    The example below also sets <strong>ColumnsPickerAllowFiltering</strong> on the grid to make picking columns easier.
+    Use <strong>QueryOnlyVisibleColumns</strong> to tell the grid to only include currently visible columns in the IQueryable query.
 </RadzenText>
 <RadzenText TextStyle="TextStyle.Subtitle1" TagName="TagName.P" class="rz-pb-4">
    Documentation:
--- a/RadzenBlazorDemos/Pages/DataGridGroupingApi.razor
+++ b/RadzenBlazorDemos/Pages/DataGridGroupingApi.razor
@@ -85,6 +85,8 @@
        {
            args.Expanded = allGroupsExpanded != null ? allGroupsExpanded : false;
        }
+
+        args.Expandable = args.Group.Data.Key != "Vice President, Sales";
    }

    void OnGroupRowExpand(Group group)
--- a/RadzenBlazorDemos/Pages/QRCodeStyled.razor
+++ b/RadzenBlazorDemos/Pages/QRCodeStyled.razor
@@ -1,9 +1,10 @@
@using Microsoft.AspNetCore.Components.Forms
+@inject IJSRuntime JS

 <RadzenRow Gap="2rem" AlignItems="AlignItems.Start">
    <RadzenColumn Size="12" SizeMD="6">
        <RadzenStack AlignItems="AlignItems.Center" JustifyContent="JustifyContent.Center" Style="height: 100%;">
-            <RadzenQRCode Value="Radzen Blazor"
+            <RadzenQRCode @ref="qrCode" Value="Radzen Blazor"
                          Foreground="@foreground"
                          Background="@background"
                          EyeColor="@eyeColor"
@@ -109,11 +110,18 @@
                    </RadzenFormField>
                </RadzenStack>
            </RadzenFieldset>
+
+            <RadzenButton Text="Save SVG"
+                          Icon="download"
+                          ButtonStyle="ButtonStyle.Primary"
+                          Click="@(_ => SaveSvg())" />
        </RadzenStack>
    </RadzenColumn>
 </RadzenRow>

@code {
+    RadzenQRCode qrCode;
+
    string foreground = "#0f62fe";
    string background = "#eef4ff";

@@ -158,4 +166,28 @@
        bottomLeftEyeColor = null;
        imageBackground = "#FFFFFF";
    }
-}
+
+    async Task SaveSvg(bool custom = false)
+    {
+        const string value = "Radzen Blazor";
+        var modules = RadzenQREncoder.EncodeUtf8(value, RadzenQREcc.Quartile);
+        var svg = custom ? RadzenQREncoder.ToSvg(
+            modules,
+            moduleSize: 8,
+            foreground: foreground,
+            background: background,
+            moduleShape: moduleShape,
+            eyeShape: eyeShape,
+            eyeShapeTopLeft: topLeftEyeShape,
+            eyeShapeTopRight: topRightEyeShape,
+            eyeShapeBottomLeft: bottomLeftEyeShape,
+            eyeColor: eyeColor,
+            eyeColorTopLeft: topLeftEyeColor,
+            eyeColorTopRight: topRightEyeColor,
+            eyeColorBottomLeft: bottomLeftEyeColor,
+            image: imageUrl,
+            imageBackground: imageBackground) : await qrCode.ToSvg();
+
+        await JS.InvokeVoidAsync("Radzen.downloadFile", "qrcode.svg", svg, "image/svg+xml;charset=utf-8");
+    }
+}
--- a/RadzenBlazorDemos/Services/ExampleService.cs
+++ b/RadzenBlazorDemos/Services/ExampleService.cs
@@ -2025,15 +2025,6 @@ namespace RadzenBlazorDemos
                            Description = "This example demonstrates different color schemes, custom colors and styling of Radzen Blazor Chart component.",
                            Tags = new [] { "chart", "graph", "styling" }
                        },
-                        new Example
-                        {
-                            Name = "Spider Chart",
-                            Path = "spider-chart",
-                            Title = "Blazor Spider Chart Component | Free UI Components by Radzen",
-                            Description = "Radzen Blazor Spider Chart for displaying multivariate data in a radial format.",
-                            Tags = new [] { "spider", "radar", "chart", "multivariate", "radial", "web" },
-                            New = true
-                        },
                    }
                },
                new Example
@@ -2045,6 +2036,16 @@ namespace RadzenBlazorDemos
                    Tags = new [] { "chart", "sparkline" }
                },
                new Example
+                {
+                    Name = "Spider Chart",
+                    Path = "spider-chart",
+                    Title = "Blazor Spider Chart Component | Free UI Components by Radzen",
+                    Description = "Radzen Blazor Spider Chart for displaying multivariate data in a radial format.",
+                    Tags = new [] { "spider", "radar", "chart", "multivariate", "radial", "web" },
+                    Icon = "\ueb39",
+                    New = true
+                },
+                new Example
                {
                    Name = "Arc Gauge",
                    Path = "arc-gauge",
Author	SHA1	Message	Date
Vladimir Enchev	1a12a75bde	Version updated	2026-02-03 09:56:04 +02:00
Vladimir Enchev	d1917eac0c	Fixed QRCode eyes with transparent background	2026-02-03 08:44:24 +02:00
Vladimir Enchev	09830f0ea2	DataGrid possible memory leak fixed	2026-02-03 07:46:32 +02:00
Vladimir Enchev	d34e0684fb	DataGrid GroupRowRenderEventArgs Expandable property added	2026-02-02 12:09:40 +02:00
Vladimir Enchev	482eca3278	tests fixed	2026-01-30 12:23:10 +02:00
Vladimir Enchev	5c8ac16c83	Version updated	2026-01-30 12:09:54 +02:00
Vladimir Enchev	29382cf0f4	DataGrid QueryOnlyVisibleColumns property added	2026-01-30 12:09:34 +02:00
Vladimir Enchev	53204cc8d6	RadzenPager GoToPage() will not update page index	2026-01-30 09:53:52 +02:00
Vladimir Enchev	6cf550c517	Version updated	2026-01-28 17:54:45 +02:00
vadimstrekha	7bf107af4c	Fix sytax error in Radzen.Blazor.js (#2436 )	2026-01-28 17:53:21 +02:00
Vladimir Enchev	adf2785a5a	Version updated	2026-01-28 15:31:27 +02:00
Vladimir Enchev	cae44df00a	Bar Charts have a zero for the min and max on the y-axis Fix #2434	2026-01-28 15:31:05 +02:00
Vladimir Enchev	8ba1c69573	RadzenQRCode and RadzenBarcode ToSvg() methods added	2026-01-28 10:31:13 +02:00
Vladimir Enchev	56031c2fd4	QRCode and Barcode save to SVG examples added	2026-01-28 10:00:24 +02:00
Vladimir Enchev	ad44802d30	RadzenBarcodeEncoder and RadzenQREncoder made public Fix #2433	2026-01-27 18:27:40 +02:00
Vladimir Enchev	64ca088e61	ListBox duplicates the first typed letter in WASM when inside Popup Fix #2429	2026-01-27 14:08:46 +02:00
Theronguard	f4777565a2	Changed the method signature to virtual, to allow overrding Enum translation with component activators (#2432 )	2026-01-27 13:14:28 +02:00
Vladimir Enchev	eb1423e757	Version update	2026-01-27 08:34:44 +02:00
Vladimir Enchev	596b251511	DataGrid column custom filter indicator is active even when no filter	2026-01-27 08:34:29 +02:00
Vladimir Enchev	e186315935	DataGrid grouping arrows do not show expanded state Fix #2431	2026-01-27 08:27:26 +02:00
yordanov	cba9a5120d	Reorder examples	2026-01-26 16:14:07 +02:00