GridView导出Excel

GridView导出Excel：

/// <summary>
/// 需要重写GridView所在的页面的VerifyRenderingInServerForm事件
/// public override void VerifyRenderingInServerForm(Control control)
/// { }
/// </summary>
private void ExportToExcel(GridView gv, string fileName)
{
    Response.Clear();
    Response.Buffer = true;
    Response.Charset = "gb2312";
    Response.Write("<meta http-equiv=Content-Type content=text/html;charset=gb2312>");
    Response.AppendHeader("Content-Disposition", "attachment;filename=" + fileName);
    Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312"); ;
    Response.ContentType = "application/vnd.xls";
    this.EnableViewState = false;
    StringWriter tw = new StringWriter();
    HtmlTextWriter hw = new HtmlTextWriter(tw);
    gv.RenderControl(hw);
    Response.Output.Write(tw.ToString());
    Response.Flush();
    Response.End();
}

/// <summary>
/// 配合 Gridvidew 汇出Excel使用
/// </summary>
public override void VerifyRenderingInServerForm(Control control)
{ }

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