Ext.Net中，文件下载。

传参到另一个页面（~/Service/DownLoad.aspx）

 

 /// <summary>

    /// 下载附件按钮事件

    /// </summary>

    /// <param name="sender"></param>

    /// <param name="e"></param>

    protected void lbnDownloadWork_Click(object sender, EventArgs e)

    {

        try

        {

            int pid = Convert.ToInt32(Request.QueryString["pid"]);

            MC_WORK_TASKACCESSORY GetAcessoryInfo = TaskService.GetTaskAcessoryByID(pid);

            string name = GetAcessoryInfo.DESCRIPTION;

            string Path = GetAcessoryInfo.ACCESSORYURL;



            string fileName = name;//客户端保存的文件名 

            string filePath = Server.MapPath(Path);//路径



            X.Redirect("~/Service/DownLoad.aspx?filename=" + fileName + "&filepath=" + filePath); 

        }

        catch

        {

            //提示信息：文件下载失败

            X.Msg.Alert("提示信息", "附件下载失败！").Show();

        }

    }

 protected void Page_Load(object sender, EventArgs e)

    {

        string filename = Request.QueryString["filename"];

        string filepath = Request.QueryString["filepath"];

        DownloadFile(filename, filepath);

    }



    /// <summary>

    /// 文件下载

    /// </summary>

    /// <param name="filename">文件名</param>

    /// <param name="filepath">文件路径</param>

    protected void DownloadFile(string filename, string filepath)

    {

        Response.Clear();

        Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(filename, System.Text.Encoding.Default));

        Response.ContentType = "application/octet-stream";

        Response.TransmitFile(filepath);

        Response.End();

    }