extjs GridPanel如何导出excel
前台aspx有个btn按钮
<ext:Button runat="server" Text="Click Me">
<AjaxEvents>
<Click Fn="aa" OnEvent="Button_Click">
<EventMask ShowMask="true" />
<ExtraParams>
<ext:Parameter Name="Item" Value="One" />
</ExtraParams>
</Click>
</AjaxEvents>
</ext:Button>
后台cs文件如何将ext:GridPanel中的数据导入到Excel中