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 protected void ibnOut_Click(object sender, ImageClickEventArgs e)//µ¼³öExcel°´Å¥µÄµã»÷ʼþ
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                Response.AppendHeader("Content-Disposition", "attachment;filename=FileName.xls");
                Response.ContentEncoding = System.Text.Encoding.UTF8;
                Response.ContentType = "application/ms-excel";//ÉèÖÃÊä³öÎļþÀàÐÍΪexcelÎļþ¡£
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                this.GridView2.RenderControl(oHtmlTextWriter);
               


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