partial void UpdateHD_Dept(HD_Dept instance);
 partial void DeleteHD_Dept(HD_Dept instance);
 partial void InsertHD_Dept(HD_Dept instance);
		private void detach_HD_Dept_HD_Contact1(HD_Dept entity)
		{
			this.SendPropertyChanging();
			entity.AssigneeHD_Contact = null;
		}
		private void detach_Contact(HD_Dept entity)
		{
			this.SendPropertyChanging();
			entity.ManagerHD_Contact = null;
		}
		private void detach_HD_Dept(HD_Dept entity)
		{
			this.SendPropertyChanging();
			entity.HD_Comp = null;
		}
		private void attach_HD_Dept(HD_Dept entity)
		{
			this.SendPropertyChanging();
			entity.HD_Comp = this;
		}