protected void Button1_Click(object sender, EventArgs e)
{
Ex("application/ms-excel ", "浏览已上报的报表.xls ");
}
private void Ex(string FileType, string FileName)
{
Response.Charset = "GB2312 ";
Response.ContentEncoding = System.Text.Encoding.UTF7;
Response.AddHeader("Content-Disposition ", "attachment;filename= " + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());
Response.ContentType = FileType;
this.EnableViewState = false;
StringWriter tw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(tw);
this.gvReportBaseView.RenderControl(hw);//这里抛出异常
Response.Write(tw.ToString());
Response.End();
}类型“GridView”的控件“ctl00_ContentPlaceHolder_gvReportBaseView”必须放在具有 runat=server 的窗体标记内。这个问题是什么原因,该如何解决呀,我使用的是MasterPaeg页来做的。
{
Ex("application/ms-excel ", "浏览已上报的报表.xls ");
}
private void Ex(string FileType, string FileName)
{
Response.Charset = "GB2312 ";
Response.ContentEncoding = System.Text.Encoding.UTF7;
Response.AddHeader("Content-Disposition ", "attachment;filename= " + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());
Response.ContentType = FileType;
this.EnableViewState = false;
StringWriter tw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(tw);
this.gvReportBaseView.RenderControl(hw);//这里抛出异常
Response.Write(tw.ToString());
Response.End();
}类型“GridView”的控件“ctl00_ContentPlaceHolder_gvReportBaseView”必须放在具有 runat=server 的窗体标记内。这个问题是什么原因,该如何解决呀,我使用的是MasterPaeg页来做的。
1、你的aspx文件:
<%@ Page Language="C#" EnableEventValidation="false" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="call.aspx.cs" Inherits="report_call" Title="通话用户数" %>
需要加EnableEventValidation="false"
2、aspx.cs文件里面加一段:
public override void VerifyRenderingInServerForm(Control control)
{ }就可以了。