C# ASP.NET-无法分析从服务器收到的消息

我有一个aspxgridexporter和一个按钮，当我点击按钮时，它会显示：

无法分析从服务器收到的消息

我无法放置触发器。它给我一个错误，说在更新面板中找不到触发器

这是我的vb.net代码和aspx代码

Dim options As DevExpress.XtraPrinting.XlsExportOptions = New DevExpress.XtraPrinting.XlsExportOptions()
options.SheetName = "grid"
cusgrdexport.WriteXlsToResponse(options)

<asp:Button runat="server" ID="print"  text="printing" OnClick="print_Click" />
<dx:ASPxGridViewExporter ID="cusgrdexport" GridViewID="dgCustomer" ExportEmptyDetailGrid="True" FileName="Customers" runat="server"></dx:ASPxGridViewExporter>
<dx:ASPxGridView runat="server" KeyFieldName="Id" AutoGenerateColumns="False"  ID="dgCustomer" ClientInstanceName="customergrid" CssFilePath="~/App_Themes/Glass/{0}/styles.css" CssPostfix="Glass" Width="690px" Font-Names="Verdana" Font-Size="8pt">

这是aspx代码的一部分

Dim options As DevExpress.XtraPrinting.XlsExportOptions = New DevExpress.XtraPrinting.XlsExportOptions()
options.SheetName = "grid"
cusgrdexport.WriteXlsToResponse(options)

<asp:Button runat="server" ID="print"  text="printing" OnClick="print_Click" />
<dx:ASPxGridViewExporter ID="cusgrdexport" GridViewID="dgCustomer" ExportEmptyDetailGrid="True" FileName="Customers" runat="server"></dx:ASPxGridViewExporter>
<dx:ASPxGridView runat="server" KeyFieldName="Id" AutoGenerateColumns="False"  ID="dgCustomer" ClientInstanceName="customergrid" CssFilePath="~/App_Themes/Glass/{0}/styles.css" CssPostfix="Glass" Width="690px" Font-Names="Verdana" Font-Size="8pt">

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我急需一个解决方案，请

我已经找到了答案

Dim sm As ScriptManager = CType(Page.Master.FindControl("ScriptManager1"), ScriptManager)
        sm.RegisterPostBackControl(Button)

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这样就可以了

因为2天的规定，我不能接受。网站不会让我，但它的工作