导出excel页面假死

如果是asp.net页面

public override void VerifyRenderingInServerForm(Control control)    {}

如果是Sharepoint web part：

<asp:Button ID="btnExportToExcel" runat="server" Text="Export to Excel" onclick="btnExportToExcel_Click" OnClientClick="_spFormOnSubmitCalled = false;_spSuppressFormOnSubmitWrapper=true;" />