GridView直接导出Excel和Word

昨天找到了用GridView直接导出Excel的方式，用到了项目上

using System.Drawing;
using System.IO;
using System.Text;

 /// <summary>
    /// 导出Excel
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void Button1_Click(object sender, EventArgs e)
    {
        Export("application/ms-excel", "Employee information.xls");
    }
    /// <summary>
    /// 定义导出Excel的函数
    /// </summary>
    /// <param name="FileType"></param>
    /// <param name="FileName"></param>
    private void Export(string FileType, string FileName)
    {
       
        Response.Clear();
        Response.Buffer = true;
        Response.Charset = "GB2312";
        Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode("成本分摊汇总") + ".xls");
        // 如果设置为 GetEncoding("GB2312");导出的文件将会出现乱码！！！
        Response.ContentEncoding = System.Text.Encoding.UTF7;
        Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。
        System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
        System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
        this.gvFenTan.RenderControl(oHtmlTextWriter);     
        Response.Output.Write(oStringWriter.ToString());
        Response.Flush();
        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-excel", "Employee.doc");
        Export("application/ms-word", "员工信息.doc");//都可以
    }