Add MinWidth parameter to ColumnBase and use it in DataGrid resize ac…

…tions

examples/Demo/Shared/Microsoft.FluentUI.AspNetCore.Components.xml

@@ -1300,6 +1300,14 @@
             Needs to be a valid CSS width value like '100px', '10%' or '0.5fr'.
             </summary>
         </member>
+        <member name="P:Microsoft.FluentUI.AspNetCore.Components.ColumnBase`1.MinWidth">
+            <summary>
+            Gets or sets the minimal width of the column.
+            Defaults to 100px for a regular column and 50px for a select column.
+            When resizing a column, the user will not be able to make it smaller than this value.
+            Needs to be a valid CSS width value like '100px', '10%' or '0.5fr'.
+            </summary>
+        </member>
         <member name="P:Microsoft.FluentUI.AspNetCore.Components.ColumnBase`1.Grid">
             <summary>
             Gets a reference to the enclosing <see cref="T:Microsoft.FluentUI.AspNetCore.Components.FluentDataGrid`1" />.

src/Core/Components/DataGrid/Columns/ColumnBase.razor.cs

@@ -151,6 +151,15 @@ public abstract partial class ColumnBase<TGridItem>
     [Parameter]
     public string? Width { get; set; }
 
+    /// <summary>
+    /// Gets or sets the minimal width of the column.
+    /// Defaults to 100px for a regular column and 50px for a select column.
+    /// When resizing a column, the user will not be able to make it smaller than this value.
+    /// Needs to be a valid CSS width value like '100px', '10%' or '0.5fr'.
+    /// </summary>
+    [Parameter]
+    public string MinWidth { get; set; } = "100px";
+
     /// <summary>
     /// Gets a reference to the enclosing <see cref="FluentDataGrid{TGridItem}" />.
     /// </summary>

src/Core/Components/DataGrid/Columns/PropertyColumn.cs

@@ -2,12 +2,12 @@
 // This file is licensed to you under the MIT License.
 // ------------------------------------------------------------------------
 
+using System.Linq.Expressions;
+using System.Reflection;
 using Microsoft.AspNetCore.Components;
 using Microsoft.AspNetCore.Components.Rendering;
 using Microsoft.FluentUI.AspNetCore.Components.DataGrid.Infrastructure;
 using Microsoft.FluentUI.AspNetCore.Components.Extensions;
-using System.Linq.Expressions;
-using System.Reflection;
 
 namespace Microsoft.FluentUI.AspNetCore.Components;
 
@@ -119,7 +119,6 @@ protected override void OnParametersSet()
             return (Func<TGridItem, string?>)method.Invoke(null, [getter, format])!;
         }
 
-
         if (typeof(IFormattable).IsAssignableFrom(typeof(TProp)))
         {
             //Struct

src/Core/Components/DataGrid/Columns/SelectColumn.cs

@@ -36,6 +36,7 @@ public class SelectColumn<TGridItem> : ColumnBase<TGridItem>, IDisposable
     public SelectColumn()
     {
         Width = "50px";
+        MinWidth = "50px";
         ChildContent = GetDefaultChildContent();
 
         _itemsChanged = new(EventCallback.Factory.Create<object?>(this, UpdateSelectedItemsAsync));

src/Core/Components/DataGrid/FluentDataGrid.razor.js

@@ -1,5 +1,4 @@
 let grids = [];
-const minWidth = 100;
 
 export function init(gridElement, autoFocus) {
     if (gridElement === undefined || gridElement === null) {
@@ -255,7 +254,7 @@ export function enableColumnResizing(gridElement, resizeColumnOnAllRows = true)
                     const diffX = isRTL ? pageX - e.pageX : e.pageX - pageX;
                     const column = columns.find(({ header }) => header === curCol);
 
-                    column.size = parseInt(Math.max(minWidth, curColWidth + diffX), 10) + 'px';
+                    column.size = parseInt(Math.max(parseInt(column.header.style.minWidth), curColWidth + diffX), 10) + 'px';
 
                     columns.forEach((col) => {
                         if (col.size.startsWith('minmax')) {
@@ -373,7 +372,7 @@ export function resizeColumnDiscrete(gridElement, column, change) {
             const width = headerBeingResized.getBoundingClientRect().width + change;
 
             if (change < 0) {
-                column.size = Math.max(minWidth, width) + 'px';
+                column.size = Math.max(parseInt(column.header.style.minWidth), width) + 'px';
             }
             else {
                 column.size = width + 'px';
@@ -400,7 +399,7 @@ export function resizeColumnExact(gridElement, column, width) {
 
     grids.find(({ id }) => id === gridElement.id).columns.forEach(column => {
         if (column.header === headerBeingResized) {
-            column.size = Math.max(minWidth, width) + 'px';
+            column.size = Math.max(parseInt(column.header.style.minWidth), width) + 'px';
         }
         else {
             if (column.size.startsWith('minmax')) {

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

@@ -71,6 +71,7 @@ public partial class FluentDataGridCell<TGridItem> : FluentComponentBase
         .AddStyle("grid-column", GridColumn.ToString(), () => !Grid.EffectiveLoadingValue && (Grid.Items is not null || Grid.ItemsProvider is not null) && 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 == DataGridRowType.Header)
         .AddStyle("padding-inline-start", "calc(((var(--design-unit)* 3) + var(--focus-stroke-width) - var(--stroke-width))* 1px)", Column is SelectColumn<TGridItem> && Owner.RowType == DataGridRowType.Default)
         .AddStyle("padding-top", "calc(var(--design-unit) * 2.5px)", Column is SelectColumn<TGridItem> && (Grid.RowSize == DataGridRowSize.Medium || Owner.RowType == DataGridRowType.Header))
         .AddStyle("padding-top", "calc(var(--design-unit) * 1.5px)", Column is SelectColumn<TGridItem> && Grid.RowSize == DataGridRowSize.Small && Owner.RowType == DataGridRowType.Default)