public string Cat_SistemaUpdate(string KeySesion, long IdSistema, string SistemaName)
 {
     string res = "";
     Cat_Sistema_Repository Cat_SistemaUpdate = new Cat_Sistema_Repository();
     try
     {
         Cat_SistemaUpdate.Cat_Sistema_Update(KeySesion,IdSistema, SistemaName);
     }
     catch (Exception ex)
     {
         var err = ex.Message;
     }
     return res;
 }
 public ObservableCollection<Cat_Sistema_Model> Download_CatSistema(string KeySesion)
 {
     ObservableCollection<Cat_Sistema_Model> result = new ObservableCollection<Cat_Sistema_Model>();
     try
     {
         using (var repository = new Cat_Sistema_Repository())
         {
             result = repository.get_Cat_Sistema(KeySesion.ToString());
         }
     }
     catch (Exception ex)
     {
         var err = ex.Message;
     }
     return result;
 }
 public string Cat_SistemaInsert(string KeySesion, string SistemaName)
 {
     string res = "";
     Cat_Sistema_Repository Cat_SistemaInsert = new Cat_Sistema_Repository();
     try
     {
         Cat_SistemaInsert.Cat_Sistema_Insert(KeySesion, SistemaName);
     }
     catch (Exception ex)
     {
         var err = ex.Message;
     }
     return res;
 }