doc: 增加示例

Author: ArgoZhang

src/BootstrapBlazor.Server/Components/Samples/Selects.razor

@@ -240,6 +240,13 @@
         <div class="col-12 col-sm-6 align-self-end">
             <div class="form-control">@SelectedEnumItem</div>
         </div>
+        <div class="col-12 col-sm-6">
+            <Select @bind-Value="_enumValueDemo" Items="_enumValueDemoItems" ShowLabel="true" DisplayText="@Localizer["SelectsEnumSelectText3"]">
+            </Select>
+        </div>
+        <div class="col-12 col-sm-6 align-self-end">
+            <div class="form-control">@_enumValueDemo</div>
+        </div>
     </div>
 </DemoBlock>
 

src/BootstrapBlazor.Server/Components/Samples/Selects.razor.cs

@@ -51,6 +51,13 @@ public sealed partial class Selects
 
     private string? _fooName;
 
+    private List<SelectedItem> _enumValueDemoItems = [
+        new("0", "Primary"),
+        new("1", "Middle")
+    ];
+
+    private EnumEducation _enumValueDemo = EnumEducation.Primary;
+
     /// <summary>
     /// <inheritdoc/>
     /// </summary>
@@ -69,7 +76,7 @@ private async Task<QueryData<SelectedItem>> OnQueryAsync(VirtualizeQueryOption o
         var items = Foos;
         if (!string.IsNullOrEmpty(option.SearchText))
         {
-            items = Foos.Where(i => i.Name!.Contains(option.SearchText, StringComparison.OrdinalIgnoreCase)).ToList();
+            items = [.. Foos.Where(i => i.Name!.Contains(option.SearchText, StringComparison.OrdinalIgnoreCase))];
         }
         return new QueryData<SelectedItem>
         {