feat: add QueryAsync instance method

Author: ArgoZhang

src/BootstrapBlazor/Components/Select/SelectTable.razor

@@ -40,7 +40,7 @@
     </CascadingValue>
     <RenderTemplate>
         <div class="dropdown-menu dropdown-table" style="@GetStyleString">
-            <Table TableColumns="TableColumns" IsFixedHeader="true" IsBordered="true" IsStriped="true"
+            <Table TableColumns="TableColumns" IsFixedHeader="true" IsBordered="true" IsStriped="true" @ref="_table"
                    RenderMode="TableRenderMode.Table" ClickToSelect="true" AutoGenerateColumns="AutoGenerateColumns"
                    ShowSearch="ShowSearch" SearchMode="SearchMode.Top"
                    SearchModel="SearchModel" SearchTemplate="SearchTemplate" CollapsedTopSearch="CollapsedTopSearch"

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

@@ -231,6 +231,8 @@ namespace BootstrapBlazor.Components;
         .AddClass($"text-danger", IsValid.HasValue && !IsValid.Value)
         .Build();
 
+    private Table<TItem> _table = default!;
+
     /// <summary>
     /// <inheritdoc/>
     /// </summary>
@@ -290,4 +292,10 @@ private async Task OnClearValue()
 
         await OnClickRowCallback(default!);
     }
+
+    /// <summary>
+    /// 查询方法
+    /// </summary>
+    /// <returns></returns>
+    public Task QueryAsync() => _table.QueryAsync();
 }