partial void DeleteAnswer_TF(Answer_TF instance);
 partial void UpdateAnswer_TF(Answer_TF instance);
 partial void InsertAnswer_TF(Answer_TF instance);
		private void detach_Answer_TFs(Answer_TF entity)
		{
			this.SendPropertyChanging();
			entity.Survey_Request_Sent = null;
		}
		private void detach_Answer_TFs(Answer_TF entity)
		{
			this.SendPropertyChanging();
			entity.Answer = null;
		}
		private void attach_Answer_TFs(Answer_TF entity)
		{
			this.SendPropertyChanging();
			entity.Answer = this;
		}