///

///這是導(dǎo)入方法

///

private void ExportExcelFromDataGrid(string filename, System.Web.UI.WebControls.GridView ToExcelGrid)
    {
        Response.Clear();
        Response.Buffer = true;
        Response.Charset = "utf-8";
        Response.AppendHeader("Content-Disposition", "attachment;filename=" + Server.UrlEncode(filename));
        Response.ContentEncoding = System.Text.Encoding.GetEncoding("utf-8");//設(shè)置輸出流為簡體中文  
        Response.ContentType = "application/ms-excel";//設(shè)置輸出文件類型為excel文件。   

        this.EnableViewState = false;
        System.Globalization.CultureInfo myCItrad = new System.Globalization.CultureInfo("ZH-CN", true);
        System.IO.StringWriter oStringWriter = new System.IO.StringWriter(myCItrad);
        System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
        ToExcelGrid.RenderControl(oHtmlTextWriter);
        Response.Write(oStringWriter.ToString());
        Response.End();
    }

///只有重寫這個方法。。才不會報Gridview 必須放在runat=server的控件里

    public override void VerifyRenderingInServerForm(Control control)
    {
        // Confirms that an HtmlForm control is rendered for
       //里邊不寫任何的東西
    }

   /// <summary>
   /// 到入按鈕2
   /// </summary>
   /// <param name="sender"></param>
   /// <param name="e"></param>
    protected void btn_Click(object sender, EventArgs e)
    {
        ExportExcelFromDataGrid("TestExcel.xls", this.GridView1);

    }