Implement create admin page for screens.

Cicm.Database/Models/Screen.cs

@@ -16,7 +16,6 @@ namespace Cicm.Database.Models
         [Required]
         [DisplayName("Diagonal (inches)")]
         public double Diagonal { get; set; }
-        [Required]
         [DisplayName("Native resolution")]
         public virtual Resolution NativeResolution { get; set; }
         [Range(2, 281474976710656)]
@@ -41,5 +40,7 @@ namespace Cicm.Database.Models
 
         public virtual ICollection<ResolutionsByScreen> Resolutions       { get; set; }
         public virtual ICollection<ScreensByMachine>    ScreensByMachines { get; set; }
+        [Required]
+        public int NativeResolutionId { get; set; }
     }
 }

cicm_web/Areas/Admin/Controllers/ScreensController.cs

@@ -3,6 +3,7 @@ using System.Threading.Tasks;
 using Cicm.Database.Models;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.Rendering;
 using Microsoft.EntityFrameworkCore;
 
 namespace cicm_web.Areas.Admin.Controllers
@@ -36,14 +37,23 @@ namespace cicm_web.Areas.Admin.Controllers
         }
 
         // GET: Screens/Create
-        public IActionResult Create() => View();
+        public IActionResult Create()
+        {
+            ViewData["NativeResolutionId"] =
+                new
+                    SelectList(_context.Resolutions.OrderBy(r => r.Chars).ThenBy(r => r.Width).ThenBy(r => r.Height).ThenBy(r => r.Colors).Select(r => new {r.Id, Name = r.ToString()}),
+                               "Id", "Name");
+
+            return View();
+        }
 
         // POST: Screens/Create
         // To protect from overposting attacks, please enable the specific properties you want to bind to, for 
         // more details see http://go.microsoft.com/fwlink/?LinkId=317598.
         [HttpPost]
         [ValidateAntiForgeryToken]
-        public async Task<IActionResult> Create([Bind("Width,Height,Diagonal,EffectiveColors,Type,Id")]
+        public async Task<IActionResult> Create(
+            [Bind("Width,Height,Diagonal,EffectiveColors,Type,NativeResolutionId,Id")]
             Screen screen)
         {
             if(ModelState.IsValid)
@@ -53,6 +63,11 @@ namespace cicm_web.Areas.Admin.Controllers
                 return RedirectToAction(nameof(Index));
             }
 
+            ViewData["NativeResolutionId"] =
+                new
+                    SelectList(_context.Resolutions.OrderBy(r => r.Chars).ThenBy(r => r.Width).ThenBy(r => r.Height).ThenBy(r => r.Colors).Select(r => new {r.Id, Name = r.ToString()}),
+                               "Id", "Name");
+
             return View(screen);
         }
 

cicm_web/Areas/Admin/Views/Screens/Create.cshtml

@@ -14,6 +14,16 @@
             <div asp-validation-summary="ModelOnly"
                  class="text-danger">
             </div>
+            <div class="form-group">
+                <label asp-for="Diagonal"
+                       class="control-label">
+                </label>
+                <input asp-for="Diagonal"
+                       class="form-control" />
+                <span asp-validation-for="Diagonal"
+                      class="text-danger">
+                </span>
+            </div>
             <div class="form-group">
                 <label asp-for="Width"
                        class="control-label">
@@ -35,12 +45,14 @@
                 </span>
             </div>
             <div class="form-group">
-                <label asp-for="Diagonal"
+                <label asp-for="NativeResolution"
                        class="control-label">
                 </label>
-                <input asp-for="Diagonal"
-                       class="form-control" />
-                <span asp-validation-for="Diagonal"
+                <select asp-for="NativeResolutionId"
+                        class="form-control"
+                        asp-items="ViewBag.NativeResolutionId">
+                </select>
+                <span asp-validation-for="NativeResolutionId"
                       class="text-danger">
                 </span>
             </div>
@@ -68,11 +80,15 @@
                 <input class="btn btn-primary"
                        type="submit"
                        value="Create" />
+                <a asp-action="Index"
+                   class="btn btn-secondary">
+                    Back to List
+                </a>
             </div>
         </form>
     </div>
 </div>
 
-<div>
-    <a asp-action="Index">Back to List</a>
-</div>
+@section Scripts {
+    @{ await Html.RenderPartialAsync("_ValidationScriptsPartial"); }
+}

cicm_web/Areas/Admin/Views/Screens/Index.cshtml

@@ -38,9 +38,9 @@
             <td>
                 @Html.DisplayFor(modelItem => item.Diagonal)
             </td>
-            <th>
-                @Html.DisplayFor(modelItem => item.NativeResolution)
-            </th>
+            <td>
+                @item.NativeResolution.ToString()
+            </td>
             <td>
                 @Html.DisplayFor(modelItem => item.EffectiveColors)
             </td>

cicm_web/cicm_web.csproj

@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
   <PropertyGroup>
     <TargetFramework>netcoreapp2.2</TargetFramework>
-    <Version>3.0.99.722</Version>
+    <Version>3.0.99.727</Version>
     <Company>Canary Islands Computer Museum</Company>
     <Copyright>Copyright © 2003-2018 Natalia Portillo</Copyright>
     <Product>Canary Islands Computer Museum Website</Product>