Inheritance: INotifyPropertyChanging, INotifyPropertyChanged
		private void detach_tasks_calls(tasks_call entity)
		{
			this.SendPropertyChanging();
			entity.call = null;
		}
		private void attach_tasks_calls(tasks_call entity)
		{
			this.SendPropertyChanging();
			entity.call = this;
		}
 partial void Updatetasks_call(tasks_call instance);
 partial void Deletetasks_call(tasks_call instance);
 partial void Inserttasks_call(tasks_call instance);