feat(SelectTree): add IsReset parameter (#4863)

Co-authored-by: 卢骥 <1429614920@qq.com>
Co-authored-by: Argo Zhang <argo@live.ca>

Author: 3 people

src/BootstrapBlazor/Components/Select/SelectTree.razor

@@ -20,7 +20,7 @@
         <span class="@AppendClassName"><i class="@DropdownIcon"></i></span>
     </div>
     <div class="dropdown-menu">
-        <TreeView TItem="TValue" Items="@Items" ShowIcon="ShowIcon" OnTreeItemClick="OnItemClick" ModelEqualityComparer="@ModelEqualityComparer" CustomKeyAttribute="@CustomKeyAttribute" OnExpandNodeAsync="@OnExpandNodeAsync" />
+        <TreeView TItem="TValue" Items="@Items" IsReset="IsReset" ShowIcon="ShowIcon" OnTreeItemClick="OnItemClick" ModelEqualityComparer="@ModelEqualityComparer" CustomKeyAttribute="@CustomKeyAttribute" OnExpandNodeAsync="@OnExpandNodeAsync" />
     </div>
     @if (!IsPopover)
     {

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

@@ -120,6 +120,12 @@ public partial class SelectTree<TValue> : IModelEqualityComparer<TValue>
     [Parameter]
     public bool IsEditable { get; set; }
 
+    /// <summary>
+    /// 获得/设置 页面刷新是否重置已加载数据 默认 false
+    /// </summary>
+    [Parameter]
+    public bool IsReset { get; set; }
+
     [Inject]
     [NotNull]
     private IStringLocalizer<SelectTree<TValue>>? Localizer { get; set; }