GridView 导出为Excel或者Word

 protected void Button1_Click(object sender, EventArgs e)
    {
        Export("application/ms-excel", "Employee information.xls");
    }
    

 private void Export(string FileType, string FileName)
    {
        Response.Charset = "GB2312";
        Response.ContentEncoding = System.Text.Encoding.UTF8;
        Response.AppendHeader("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);
        GridView1.RenderControl(hw);
        Response.Write(tw.ToString());
        Response.End();
    }
    /// <summary>
    /// 此方法必重写，否则会出错
    /// </summary>
    /// <param name="control"></param>
  public override void VerifyRenderingInServerForm(Control control)
    {
    }
  protected void Button2_Click(object sender, EventArgs e)
    {
           Export("application/ms-word", "员工信息.doc");
    }