public void isPropretyCheck()
 {
     try
     {
         if (model.isPropretyCheck(CurrentPriority))
         {
             MessageProprty = "The propreties are saved";
         }
         else
         {
             MessageProprty = "The propreties are not valid";
         }
     }
     catch (Exception ex)
     {
         MessageProprty = ex.Message;
     }
 }