private void detach_EmployeeDepartmentHistories(EmployeeDepartmentHistory entity)
		{
			this.SendPropertyChanging();
			entity.Department = null;
		}
 partial void DeleteEmployeeDepartmentHistory(EmployeeDepartmentHistory instance);
 partial void InsertEmployeeDepartmentHistory(EmployeeDepartmentHistory instance);
 partial void UpdateEmployeeDepartmentHistory(EmployeeDepartmentHistory instance);
		private void attach_EmployeeDepartmentHistories(EmployeeDepartmentHistory entity)
		{
			this.SendPropertyChanging();
			entity.Shift = this;
		}