void AsyncFileUpload1_UploadedComplete(object sender, AsyncFileUploadEventArgs e)
        {
            try
            {
                string path    = "";
                string urlFile = "";
                if (Path.GetExtension(e.filename).Contains(".pdf") == false && Path.GetExtension(e.filename).Contains(".zip") && Path.GetExtension(e.filename).Contains(".rar"))
                {
                    return;
                }
                SqlFunction sqlFun = new SqlFunction(HttpContext.Current.Session.GetConnectionString2());
                //lấy mã dự án
                //string maDuAn = sqlFun.GetOneStringField("select maDuAn from tblDuAn where sttDuAnpr = N'" + hdfSttDA.Value + "'");
                string tenFile = e.filename;//"VanBan" + hdfSTTVanBan.Value + ".pdf";
                if (!System.IO.Directory.Exists(Server.MapPath("~/VanBan/" + HttpContext.Current.Session.GetDonVi().maDonVi + "/" + userControlVanBanChucNang.Value.ToString().Split('_')[0].ToString())))
                {
                    System.IO.Directory.CreateDirectory(Server.MapPath("~/VanBan/" + HttpContext.Current.Session.GetDonVi().maDonVi + "/" + userControlVanBanChucNang.Value.ToString().Split('_')[0].ToString()));
                }
                string strDate       = DateTime.Now.ToString("dd_MM_yy_hhmmss");
                string fileExtension = Path.GetExtension(tenFile).Replace(".", "");
                tenFile = tenFile.Substring(tenFile.LastIndexOf("\\\\") + 1);
                tenFile = tenFile.Substring(0, tenFile.LastIndexOf(fileExtension)) + strDate + "." + fileExtension;
                tenFile = tenFile.Replace(" ", "");
                path    = string.Concat(Server.MapPath("/VanBan/" + HttpContext.Current.Session.GetDonVi().maDonVi + "/" + userControlVanBanChucNang.Value.ToString().Split('_')[0].ToString() + "/" + tenFile + ""));

                if (!System.IO.File.Exists(path))
                {
                    System.IO.File.Delete(path);
                    AsyncFileUpload1.SaveAs(path);
                    urlFile = "/VanBan/" + HttpContext.Current.Session.GetDonVi().maDonVi + "/" + userControlVanBanChucNang.Value.ToString().Split('_')[0].ToString() + "/" + tenFile + "";
                    sqlFun.ExeCuteNonQuery("UPDATE dbo.tblVanBanDA SET tenFile=N'" + urlFile + "' WHERE sttVBDApr='" + userControlVanBanpr.Value.ToString() + "'");
                    AsyncFileUpload1.ClearState();
                    AsyncFileUpload1.Dispose();
                    return;
                }
                else
                {
                    //Xoa file neu da ton tai
                    System.IO.File.Delete(path);
                    AsyncFileUpload1_UploadedComplete(sender, e);
                }
            }
            catch
            {
            }
            AsyncFileUpload1.Dispose();
        }