一個將datagrid控件內容輸出到excel文件的demo.

生成excel文件#region 生成excel文件
public void settoexcel()
{
//            response.clear();
//            response.buffer= true;
//            response.charset="utf-8";　　
   
    if (eformsn.text=="")
    {
        datagrid1.visible=false;
        label1.text="要匯入excel，請先輸入申請單號!";
        label1.visible=true;
    }
    else
    {
        dl.datasource=db("query", "select * from msi_eol_list_line where eformsn="+eformsn.text+" order by eformsn").tables[0].defaultview;
        dl.databind();

        //下面這行很重要，attachment 參數表示作為附件下載，您可以改成online在線打開
        //filename=fileflow.xls 指定輸出文件的名稱，注意其擴展名和指定文件類型相符，可以為：.doc  .xls  .txt  .htm　　

        response.appendheader("content-disposition","attachment;filename=eol_"+eformsn.text+".xls");
        response.contentencoding=system.text.encoding.getencoding("utf-8");　

        //response.contenttype指定文件類型 可以為application/ms-excel,application/ms-word ,application/ms-txt,application/ms-html或其他瀏覽器可直接支持文檔　
        response.contenttype = "application/ms-excel";
        dl.enableviewstate = false;　

        system.io.stringwriter ostringwriter = new system.io.stringwriter();
        system.web.ui.htmltextwriter ohtmltextwriter = new system.web.ui.htmltextwriter(ostringwriter);

        //將目標數據綁定到輸入流輸出　　
        //this 表示輸出本頁，你也可以綁定datagrid,或其他支持obj.rendercontrol()屬性的控件　　
        dl.rendercontrol(ohtmltextwriter);
        //this.databind.rendercontrol(ohtmltextwriter);
        response.write(ostringwriter.tostring());
        response.end();
    }
}
#endregion