private void OnEmployeeDepartmentHistoryBindingSourceCurrentItemChanged(object sender, System.EventArgs e) { _currentEmployeeDepartmentHistory = uxEmployeeDepartmentHistoryBindingSource.Current as Entities.EmployeeDepartmentHistory; if (_currentEmployeeDepartmentHistory != null) { _currentEmployeeDepartmentHistory.Validate(); } //_EmployeeDepartmentHistory.Validate(); OnCurrentEntityChanged(); }