Implement #4178

Related Work Items: #41

Author: vnbaaij

src/Core/Components/DataGrid/FluentDataGridCell.razor.cs

@@ -36,15 +36,15 @@ public FluentDataGridCell(LibraryConfiguration configuration) : base(configurati
 
     /// <summary />
     protected string? StyleValue => DefaultStyleBuilder
-        .AddStyle("grid-column", GridColumn.ToString(CultureInfo.InvariantCulture), () => !Grid.EffectiveLoadingValue && (Grid.Items is not null || Grid.ItemsProvider is not null) && Grid.DisplayMode == DataGridDisplayMode.Grid)
+        .AddStyle("grid-column", GridColumn.ToString(CultureInfo.InvariantCulture), () => !Grid.EffectiveLoadingValue && (Grid.Items is not null || Grid.ItemsProvider is not null) && InternalGridContext.TotalItemCount > 0 && Grid.DisplayMode == DataGridDisplayMode.Grid)
         .AddStyle("text-align", "center", Column is SelectColumn<TGridItem>)
         .AddStyle("align-content", "center", Column is SelectColumn<TGridItem>)
         .AddStyle("min-width", Column?.MinWidth, Owner.RowType is DataGridRowType.Header or DataGridRowType.StickyHeader)
         .AddStyle("padding-top", "10px", Column is SelectColumn<TGridItem> && (Grid.RowSize == DataGridRowSize.Medium || Owner.RowType == DataGridRowType.Header))
         .AddStyle("padding-top", "6px", Column is SelectColumn<TGridItem> && Grid.RowSize == DataGridRowSize.Small && Owner.RowType == DataGridRowType.Default)
         .AddStyle("width", Column?.Width, !string.IsNullOrEmpty(Column?.Width) && Grid.DisplayMode == DataGridDisplayMode.Table)
         .AddStyle("height", $"{Grid.ItemSize.ToString(CultureInfo.InvariantCulture):0}px", () => !Grid.EffectiveLoadingValue && Grid.Virtualize)
-        .AddStyle("height", $"{((int)Grid.RowSize).ToString(CultureInfo.InvariantCulture)}px", () => !Grid.EffectiveLoadingValue && !Grid.Virtualize && !Grid.MultiLine && (Grid.Items is not null || Grid.ItemsProvider is not null))
+        .AddStyle("height", $"{((int)Grid.RowSize).ToString(CultureInfo.InvariantCulture)}px", () => !Grid.EffectiveLoadingValue && !Grid.Virtualize && !Grid.MultiLine && (Grid.Items is not null || Grid.ItemsProvider is not null) && InternalGridContext.TotalItemCount > 0)
         .AddStyle("height", "100%", Grid.MultiLine)
         .AddStyle("min-height", "44px", Owner.RowType != DataGridRowType.Default)
         .AddStyle("z-index", ZIndex.DataGridHeaderPopup.ToString(CultureInfo.InvariantCulture), CellType == DataGridCellType.ColumnHeader && Grid._columns.Count > 0 && Grid.UseMenuService)