refactor: 移动方法到基类

Author: ArgoZhang

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

@@ -343,11 +343,6 @@ private async Task OnClearValue()
         SelectedItems.Clear();
     }
 
-    /// <summary>
-    /// Clears the search text.
-    /// </summary>
-    public void ClearSearchText() => SearchText = null;
-
     /// <summary>
     /// FormatValueAsString 方法
     /// </summary>

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

@@ -470,11 +470,6 @@ private async Task SelectedItemChanged(SelectedItem item)
     /// </summary>
     public void Add(SelectedItem item) => _children.Add(item);
 
-    /// <summary>
-    /// Clears the search text.
-    /// </summary>
-    public void ClearSearchText() => SearchText = null;
-
     private async Task OnClearValue()
     {
         if (ShowSearch)

src/BootstrapBlazor/Components/Select/SelectBase.cs

@@ -212,4 +212,9 @@ protected override void OnParametersSet()
     /// </summary>
     /// <returns></returns>
     protected bool GetClearable() => IsClearable && !IsDisabled && IsNullable();
+
+    /// <summary>
+    /// Clears the search text.
+    /// </summary>
+    public void ClearSearchText() => SearchText = null;
 }

src/BootstrapBlazor/Components/SelectGeneric/SelectGeneric.razor.cs

@@ -449,11 +449,6 @@ private async Task ValueTypeChanged(SelectedItem<TValue> item)
     /// <param name="item"></param>
     public void Add(SelectedItem<TValue> item) => _children.Add(item);
 
-    /// <summary>
-    /// 清空搜索栏文本内容
-    /// </summary>
-    public void ClearSearchText() => SearchText = null;
-
     private async Task OnClearValue()
     {
         if (ShowSearch)