Наследование: INotifyPropertyChanging, INotifyPropertyChanged
 partial void DeleteTestCaseTestPlan(TestCaseTestPlan instance);
 partial void InsertTestCaseTestPlan(TestCaseTestPlan instance);
 partial void UpdateTestCaseTestPlan(TestCaseTestPlan instance);
		private void detach_TestCaseTestPlans(TestCaseTestPlan entity)
		{
			this.SendPropertyChanging();
			entity.TestPlan = null;
		}