The spreadsheet engine parsed typed input with the invariant culture while
displaying values with the current culture, breaking the edit round-trip on
non-en-US hosts and making comma-decimal entry (10,50) impossible.
Workbook gains a Culture property (defaults to CurrentCulture) which the
component stamps from its inherited Culture parameter. It drives:
- Cell input parsing (CellData type inference), including day-month date
handling for cultures where the group and date separators collide (de-DE)
- Edit text and display rendering (GetValue, GetValueAsString, GetDisplayText)
- Number format rendering - format codes stay canonical invariant tokens while
separators, month names, and AM/PM designators follow the culture
- Formula entry and display via the new FormulaLocalizer (Excel FormulaLocal
semantics: ';' argument separators and ',' decimals in comma-decimal
cultures, lenient comma acceptance where unambiguous, canonical invariant
storage)
- Dialog input (data validation, conditional format, filter) via shared
conversion helpers on SpreadsheetDialogBase
XLSX and CSV files read and write canonical invariant values regardless of
the workbook culture, including autofit column widths. Malformed formulas now
surface as error trees instead of an unhandled lexer exception. Number format
parsing is cached (hard-bounded) since CellView reparsed per render.
Includes localization demos for the Spreadsheet and Document Processing
sections and culture test suites.
Note: headless code on non-en-US hosts now parses string values with the
host culture; set Workbook.Culture explicitly (or to InvariantCulture) for
host-independent processing.
HyperlinkCommand snapshotted cell.Value via .ToString() and restored it
as a string on Unexecute. For non-string values (double, DateTime, bool,
int) this silently converted the original value to a string. Change
the snapshot field to object? and restore as-is.
ReadOnly, ShowToolbar, ShowFormulaBar, ShowSheetTabs, and 15 Allow* parameters
gate workbook mutations and grey out the matching tools. Each ICommand declares
its SpreadsheetFeature so ExecuteAsync routes through one chokepoint.
Execute is now async (Task<bool>) so CommandExecuting handlers can await before
calling PreventDefault to veto a command. Tool bindings move from setter-style
dispatch to Value=/ValueChanged= async methods.
ChildContent replaces the built-in ribbon; the host cascades the active
Worksheet so tools in custom content don't need to track sheet-tab changes.
TableDesignTab is a new public component for the contextual tab.
Tests: 76 new (parameter rendering, ExecuteAsync gating per Allow* flag,
CommandExecuting + PreventDefault, ICommand.Feature mapping, ChildContent).
Also fixes two pre-existing SheetViewTests that hardcoded the old 24px row
default after it changed to 22px in 2e79dd7d.
Replaced all == null with is null and != null with is not null
across 109 spreadsheet files. The is null pattern uses a direct
reference check that cannot be overridden by operator overloads.
- Move 26 command files from Documents/Spreadsheet to Spreadsheet (UI layer)
- Move GetPixelRange/GetIndexRange from Axis to SheetView
- Move Editor from Worksheet to SheetView
- Remove Commands (UndoRedoStack) from Worksheet
- Widen ISpreadsheet with Execute/Undo/Redo so tools don't couple to UndoRedoStack
- Tools use [CascadingParameter] ISpreadsheet for command execution
- Add Worksheet.ImagesChanged event; ImageOverlay uses it instead of Commands.Changed
- Result: zero using Radzen.Blazor.Spreadsheet in Documents/Spreadsheet
137 files with namespace Radzen.Documents.Spreadsheet now live under
Documents/Spreadsheet/ directory, matching their namespace. 76 function
files in Documents/Spreadsheet/Functions/. 27 UI files remain in
Spreadsheet/.
Matches Excel terminology, OpenXML spec, and industry convention
(Aspose, Telerik, Syncfusion all use Worksheet). Property names on
components remain Sheet for now; only the type name changes.
137 document-layer files now use namespace Radzen.Documents.Spreadsheet.
26 UI-layer files keep Radzen.Blazor.Spreadsheet with using added.
Test files add using Radzen.Documents.Spreadsheet.
Sheet class renamed to Worksheet to match industry conventions.
Replace O(rows × columns) nested loops in Sheet.DeleteRow/DeleteColumn/
InsertRow/InsertColumn with sparse dictionary operations that only touch
populated cells. Unify duplicate InvalidateFormulasReferencingRow/Column
into a single method.
Fix TryGet to not auto-create cells on read access — prevents dictionary
bloat from formula evaluation, export, and clipboard operations. Write-path
callers (FormatCommand, BorderCommand, HyperlinkCommand, MergeCellsCommand)
now use the indexer directly. FormulaEvaluator returns empty CellData for
unpopulated in-bounds cells instead of #REF!.
Add Cell.IsEmpty and CellStore.Compact() for explicit eviction of cells
with no value, formula, format, or hyperlink.
Add strikethrough, font family, font size, text wrap, merge cells UI,
cell borders, hyperlinks, number format colors, and conditional
formatting UI. Includes toolbar tools, undo/redo commands, XLSX
import/export, and 45 new tests.
