public ObservableCollection<Cat_Region_Model> Download_RegionSelec(string KeySesion)
 {
     ObservableCollection<Cat_Region_Model> result = new ObservableCollection<Cat_Region_Model>();
     try
     {
         using (var repository = new Cat_Region_Repository())
         {
             result = repository.get_Cat_Region(KeySesion.ToString());
         }
     }
     catch (Exception)
     {
         ;
     }
     return result;
 }