(C#)asp.net(DataSet)导出Excel文件

public override void VerifyRenderingInServerForm(Control control)

    {

        //OverRide　为了使导出成Excel可行！

    }

    protected void CSVDownload_Click(object sender, EventArgs e)

    {

        Response.Clear();

        DataSet dsAnalysis1;

        dsAnalysis1 = creatdataset();

        GridView2.DataSource = dsAnalysis1.Tables[0].DefaultView;

        GridView2.DataBind();

        this.GridView2.Visible = true;

         Response.Clear();

        Response.Charset = "GB2312";

        Response.AddHeader("content-disposition", "attachment; filename=" + CSVfilename + "");

        Response.ContentEncoding = System.Text.Encoding.UTF8;

        Response.ContentType = "application/vnd.ms-excel.numberformat:@";

        System.IO.StringWriter stringWrite = new System.IO.StringWriter();

        System.Web.UI.HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);

        GridView2.AllowPaging = false;

        GridView2.RenderControl(htmlWrite);

        stringWrite.ToString().Replace(",", "~");

        Response.Write(stringWrite.ToString().Replace(",", "~"));

        GridView2.Visible = false;

        Response.End();

    }

    protected void GridView2_RowDataBound(object sender, GridViewRowEventArgs e)

    {

        if (e.Row.RowType == DataControlRowType.DataRow)

        {

            for (int i = 0; i < e.Row.Cells.Count; i++)

            {

                e.Row.Cells[i].Attributes.Add("style", "vnd.ms-excel.numberformat: @");

            }

        }

    }