private void detach_EmployeeTerritories(EmployeeTerritory entity)
 {
     this.SendPropertyChanging();
     entity.Employee = null;
 }
 partial void UpdateEmployeeTerritory(EmployeeTerritory instance);
 partial void DeleteEmployeeTerritory(EmployeeTerritory instance);
 partial void InsertEmployeeTerritory(EmployeeTerritory instance);