net GridView的excel文件导出

GridView的excel文件导出方法如下，VerifyRenderingInServerForm方法必须有，否则会报错，同时，在ASPX页面代码<%@ Page Language="C#"  EnableEventValidation = "false" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>须增设红色字体部分设置。

public override void VerifyRenderingInServerForm(Control control)
    {
        // base.VerifyRenderingInServerForm(control);
    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        GridView1.AllowPaging = false;  //取消分页
        GridView1.DataSource = ds;  //重新数据绑定
        GridView1.DataBind();
        Response.Clear();
        Response.Buffer = true;
        Response.Charset = "GB2312";
        Response.AppendHeader("Content-Disposition", "attachment;filename=total.xls");
        //gaoyang [10/21/2006] 经测试如果设置为 GetEncoding("GB2312"),导出的文件将会出现乱码。
        Response.ContentEncoding = System.Text.Encoding.UTF8;

        //设置输出文件类型为excel文件。
        Response.ContentType = "application/ms-excel";
        System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
        System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
        GridView1.RenderControl(oHtmlTextWriter);
        Response.Output.Write(oStringWriter.ToString());
        Response.Flush();
        Response.End();
        GridView1.AllowPaging = true;  //设置分页
        GridView1.DataSource = ds;  //重新数据绑定
        GridView1.DataBind();
    }

 1、不分页数据的重新绑定，因为不这样做，则导出的文件只是当前页的数据。