gridview數據導出到excel打印

    //打印gridview中的數據時需要override掉這個方法,實現部分爲空
    public override void VerifyRenderingInServerForm(Control control)
    {
        //註釋掉下面的代碼，否則在asp.net2.0下會報錯（注：GridView是asp.net 2.0下的控件，1.1下一些控件也可以導出成Excel或者Word）
        //base.VerifyRenderingInServerForm(control);
    }
    /// <summary>
    /// 打印功能
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void btnPrint_Click(object sender, EventArgs e)
    {
        if (gvResult.Rows.Count > 0)//有數據時才導出到Excel
        {
            #region GridView中的內容導出到Excel裏,需要判斷是否已安裝office
            try
            {
                Response.Clear();
                Response.BufferOutput = true;
                //設定輸出的字符集
                Response.Charset = "GB2312";
                //假定導出的文件名爲excel.xls
                Response.AppendHeader("Content-Disposition", "attachment;filename=excel.xls");
                Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");
                //設置導出文件的格式
                Response.ContentType = "application/ms-excel";
                //關閉ViewState
                EnableViewState = false;
                System.Globalization.CultureInfo cultureInfo = new System.Globalization.CultureInfo("ZH-CN", true);
                System.IO.StringWriter stringWriter = new System.IO.StringWriter(cultureInfo);
                System.Web.UI.HtmlTextWriter textWriter = new System.Web.UI.HtmlTextWriter(stringWriter);
                gvResult.RenderControl(textWriter);
                //把HTML寫回瀏覽器
                Response.Write(stringWriter.ToString());
                Response.End();
            }
            catch (Exception ex)
            {
                JScript.ShowMessage(ex.Message);
            }
            #endregion
        }
        else
        {
            JScript.ShowMessage("無數據可以打印.");
        }
    }