revert(Select): add DefaultVirtualizeItemText parameter

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

@@ -118,6 +118,12 @@ public partial class Select<TValue> : ISelect, ILookup
     [Parameter]
     public object? LookupServiceData { get; set; }
 
+    /// <summary>
+    /// Gets or sets the default text for virtualized items. Default is null.
+    /// </summary>
+    [Parameter]
+    public string? DefaultVirtualizeItemText { get; set; }
+
     /// <summary>
     /// <inheritdoc/>
     /// </summary>
@@ -169,17 +175,7 @@ private SelectedItem? SelectedRow
             return null;
         }
 
-        if (IsVirtualize)
-        {
-            _init = false;
-            return new SelectedItem(CurrentValueAsString, CurrentValueAsString);
-        }
-
-        var item = GetItemWithEnumValue()
-            ?? Rows.Find(i => i.Value == CurrentValueAsString)
-            ?? Rows.Find(i => i.Active)
-            ?? Rows.FirstOrDefault(i => !i.IsDisabled);
-
+        var item = IsVirtualize ? GetItemByVirtulized() : GetItemByRows();
         if (item != null)
         {
             if (_init && DisableItemChangedWhenFirstRender)
@@ -195,9 +191,18 @@ private SelectedItem? SelectedRow
         return item;
     }
 
-    private SelectedItem? GetItemWithEnumValue() => ValueType.IsEnum
-        ? Rows.Find(i => i.Value == Convert.ToInt32(Value).ToString())
-        : null;
+    private SelectedItem? GetItemWithEnumValue() => ValueType.IsEnum ? Rows.Find(i => i.Value == Convert.ToInt32(Value).ToString()) : null;
+
+    private SelectedItem GetItemByVirtulized() => new(CurrentValueAsString, DefaultVirtualizeItemText ?? CurrentValueAsString);
+
+    private SelectedItem? GetItemByRows()
+    {
+        var item = GetItemWithEnumValue()
+            ?? Rows.Find(i => i.Value == CurrentValueAsString)
+            ?? Rows.Find(i => i.Active)
+            ?? Rows.FirstOrDefault(i => !i.IsDisabled);
+        return item;
+    }
 
     /// <summary>
     /// <inheritdoc/>

src/BootstrapBlazor/Components/Select/SelectBase.cs

@@ -111,14 +111,6 @@ public abstract class SelectBase<TValue> : PopoverSelectBase<TValue>
     [Parameter]
     public int OverscanCount { get; set; } = 4;
 
-    /// <summary>
-    /// Gets or sets the default text for virtualized items. Default is null.
-    /// </summary>
-    [Parameter]
-    [ExcludeFromCodeCoverage]
-    [Obsolete("已弃用，删除即可；Deprecated, just delete")]
-    public string? DefaultVirtualizeItemText { get; set; }
-
     /// <summary>
     /// Gets or sets the callback method when the clear button is clicked. Default is null.
     /// </summary>

test/UnitTest/Components/SelectTest.cs

@@ -371,7 +371,7 @@ await cut.InvokeAsync(() =>
     }
 
     [Fact]
-    public void DisableItemChangedWhenFirstRender_Ok()
+    public void DisableItemChangedWhenFirstRender_False()
     {
         var triggered = false;
 
@@ -394,6 +394,30 @@ public void DisableItemChangedWhenFirstRender_Ok()
         Assert.False(triggered);
     }
 
+    [Fact]
+    public void DisableItemChangedWhenFirstRender_True()
+    {
+        var triggered = false;
+
+        // 空值时，不触发 OnSelectedItemChanged 回调
+        var cut = Context.RenderComponent<Select<string>>(pb =>
+        {
+            pb.Add(a => a.Items, new SelectedItem[]
+            {
+                new("1", "Test"),
+                new("2", "Test2")
+            });
+            pb.Add(a => a.Value, "");
+            pb.Add(a => a.OnSelectedItemChanged, item =>
+            {
+                triggered = true;
+                return Task.CompletedTask;
+            });
+            pb.Add(a => a.DisableItemChangedWhenFirstRender, false);
+        });
+        Assert.True(triggered);
+    }
+
     [Fact]
     public void Color_Ok()
     {
@@ -736,6 +760,30 @@ public void ItemClick_Ok()
         });
     }
 
+    [Fact]
+    public void DefaultVirtualizeItemText_Ok()
+    {
+        var cut = Context.RenderComponent<Select<string>>(pb =>
+        {
+            pb.Add(a => a.Items, new SelectedItem[]
+            {
+                new("1", "Test1"),
+                new("2", "Test2")
+            });
+            pb.Add(a => a.Value, "3");
+            pb.Add(a => a.IsVirtualize, true);
+        });
+
+        var input = cut.Find(".form-select");
+        Assert.Contains("value=\"3\"", input.OuterHtml);
+
+        cut.SetParametersAndRender(pb =>
+        {
+            pb.Add(a => a.DefaultVirtualizeItemText, "Test3");
+        });
+        Assert.Contains("value=\"Test3\"", input.OuterHtml);
+    }
+
     [Fact]
     public void IsVirtualize_Items()
     {

test/UnitTest/Components/TreeViewTest.cs

@@ -596,6 +596,7 @@ public async Task IsVirtualize_Ok()
         {
             pb.Add(a => a.IsVirtualize, true);
             pb.Add(a => a.RowHeight, 30f);
+            pb.Add(a => a.OverscanCount, 4);
             pb.Add(a => a.OnExpandNodeAsync, async item =>
             {
                 await Task.Delay(10);