public bool SaveFavouriteProduct()
    {
        if (hdnPKID.Value != "")
        {
            objCommon = new clsCommon();
            if (objCommon.IsRecordExists("tblFavouriteProduct", tblFavouriteProduct.ColumnNames.AppProductID, tblFavouriteProduct.ColumnNames.AppFavouriteProductID, hdnPKID.Value, "", tblFavouriteProduct.ColumnNames.AppCustomerID + "=" + Session[appFunctions.Session.ClientUserID.ToString()].ToString()))
            {
                DInfo.ShowMessage("This product already exists in favourite.", Enums.MessageType.Error);
                //ScriptManager.RegisterStartupScript(this, this.GetType(), "Message", "<SCRIPT LANGUAGE='javascript'>alert('Product alredy exits in Favourite List');</script>", false);
                return(false);
            }
            objCommon = null;

            tblFavouriteProduct objFavouriteProduct = new tblFavouriteProduct();
            objFavouriteProduct.AddNew();
            objFavouriteProduct.s_AppProductID   = hdnPKID.Value;
            objFavouriteProduct.s_AppCustomerID  = Session[appFunctions.Session.ClientUserID.ToString()].ToString();
            objFavouriteProduct.s_AppCreatedDate = FormatDateString(DateTime.Now.ToString(strInputDateFormat), strInputDateFormat, strOutputDateFormat);
            objFavouriteProduct.Save();
            objFavouriteProduct = null;

            return(true);
        }
        else
        {
            return(false);
        }
    }