private int AddData()
        {
            string ApplicationId = ddlApplicationList.SelectedValue;
            string PortalName = txtPortalName.Text;  
            string Currency = ddlCurrencyTypeList.SelectedValue;
            string HostFee = txtHostFee.Text;
            int HostSpace = Convert.ToInt32(txtHostSpace.Text);            
            string DefaultLanguage = ddlLanguageList.Text;
            string HomeDirectory = txtHomeDirectory.Text;
            string Url = txtUrl.Text;
            string KeyWords = txtKeyWords.Text;
            string FooterText = txtFooterText.Text;
            string Description = txtDescription.Text;
            string CreatedByUserId = Session["UserId"].ToString();

            #region UPLOAD ************************************************************************************************************/
            string[] array_files = new String[2];
            string LogoFile = string.Empty; string BackgroundFile = string.Empty;
            string logo_dir_path = Server.MapPath("~/" + System.Configuration.ConfigurationManager.AppSettings["upload_image_dir"] + "/portal_images/logo");
            string background_dir_path = Server.MapPath("~/" + System.Configuration.ConfigurationManager.AppSettings["upload_image_dir"] + "/portal_images/backgrounds");
            FileHandleClass file_handle_obj = new FileHandleClass();

            HttpPostedFile _logo_file = InputLogoFile.PostedFile;
            if (_logo_file.ContentLength > 0)
            {                
                LogoFile = file_handle_obj.uploadInputFile(_logo_file, logo_dir_path);               
            }

            HttpPostedFile _background_file = InputBackgroundFile.PostedFile;
            if (_background_file.ContentLength > 0)
            {
                BackgroundFile = file_handle_obj.uploadInputFile(_background_file, background_dir_path);
            }
            #endregion ================================================================================

            #region xu ly thoi gian  =====================================================================================
            System.Globalization.DateTimeFormatInfo MyDateTimeFormatInfo = new System.Globalization.DateTimeFormatInfo();
            MyDateTimeFormatInfo.ShortDatePattern = "dd/MM/yyyy";            
            string ExpiryDate = null;

            if (txtExpiryDate.Text != string.Empty)
            {
                DateTime _ExpiryDate = DateTime.Parse(txtExpiryDate.Text, MyDateTimeFormatInfo);
                ExpiryDate = _ExpiryDate.ToString("yyyy-MM-dd");
            }         
            #endregion ====================================================================================================

            PortalController portal_obj = new PortalController();
            int i = portal_obj.Insert(ApplicationId, PortalName, ExpiryDate, Currency, HostFee, HostSpace, DefaultLanguage,
                HomeDirectory, Url, LogoFile, BackgroundFile, KeyWords, FooterText, Description, CreatedByUserId);
            return i;
        }