feat(Select): Clear search text while clearing text content

src/BootstrapBlazor/Components/Select/Select.razor.cs

@@ -171,6 +171,12 @@ public partial class Select<TValue> : ISelect
     [Parameter]
     public string? DefaultVirtualizeItemText { get; set; }
 
+    /// <summary>
+    /// 获得/设置 清除文本内容 OnClear 回调方法 默认 null
+    /// </summary>
+    [Parameter]
+    public Func<Task>? OnClearAsync { get; set; }
+
     /// <summary>
     /// 获得/设置 禁止首次加载时触发 OnSelectedItemChanged 回调方法 默认 false
     /// </summary>
@@ -438,8 +444,16 @@ private async Task SelectedItemChanged(SelectedItem item)
     /// </summary>
     public void ClearSearchText() => SearchText = null;
 
-    private void OnClearValue()
+    private async Task OnClearValue()
     {
+        if (ShowSearch)
+        {
+            ClearSearchText();
+        }
+        if (OnClearAsync != null)
+        {
+            await OnClearAsync();
+        }
         CurrentValue = default;
     }
 

test/UnitTest/Components/SelectTest.cs

@@ -836,4 +836,35 @@ await cut.InvokeAsync(() =>
         Assert.Equal("Test3", cut.Instance.Value);
         Assert.True(updated);
     }
+
+    [Fact]
+    public async Task OnClearAsync_Ok()
+    {
+        var clear = false;
+        var cut = Context.RenderComponent<Select<string>>(pb =>
+        {
+            pb.Add(a => a.Items, new SelectedItem[]
+            {
+                new("1", "<div>Test1</div>"),
+                new("2", "<div>Test2</div>")
+            });
+            pb.Add(a => a.Value, "2");
+            pb.Add(a => a.ShowSearch, true);
+            pb.Add(a => a.IsClearable, true);
+            pb.Add(a => a.OnClearAsync, () =>
+            {
+                clear = true;
+                return Task.CompletedTask;
+            });
+        });
+
+        var span = cut.Find(".clear-icon");
+        Assert.NotNull(span);
+
+        await cut.InvokeAsync(() =>
+        {
+            span.Click();
+        });
+        Assert.True(clear);
+    }
 }