为什么我对ASP.NET Telerik RadGrid列的排序不起作用？单击列标题时，RadGrid将被清除，行将消失

<asp:SqlDataSource ID="SqlDataSource1" runat="server" 
    ConnectionString="<%$ ConnectionStrings:YourConnectionString %>" 
    SelectCommand="SELECT * FROM YourTable"
    SortParameterName="sortExpression">
</asp:SqlDataSource>

<telerik:RadGrid ID="RadGrid1" runat="server" DataSourceID="SqlDataSource1" AllowSorting="true">
    <!-- 其他配置 -->
</telerik:RadGrid>

protected void RadGrid1_SortCommand(object sender, GridSortCommandEventArgs e)
{
    // 处理排序逻辑
}

<telerik:RadGrid ID="RadGrid1" runat="server" DataSourceID="SqlDataSource1" AllowSorting="true" OnSortCommand="RadGrid1_SortCommand">
    <!-- 其他配置 -->
</telerik:RadGrid>

<telerik:RadGrid ID="RadGrid1" runat="server" DataSourceID="SqlDataSource1" AllowSorting="true" OnSortCommand="RadGrid1_SortCommand">
    <MasterTableView DataKeyNames="ID" AllowNaturalSort="false">
        <Columns>
            <telerik:GridBoundColumn DataField="ColumnName" HeaderText="Column Name" SortExpression="ColumnName" />
            <!-- 其他列 -->
        </Columns>
    </MasterTableView>
</telerik:RadGrid>

<asp:SqlDataSource ID="SqlDataSource1" runat="server" 
    ConnectionString="<%$ ConnectionStrings:YourConnectionString %>" 
    SelectCommand="SELECT * FROM YourTable"
    SortParameterName="sortExpression">
</asp:SqlDataSource>

protected void RadGrid1_SortCommand(object sender, GridSortCommandEventArgs e)
{
    // 实现排序逻辑
}