private void OnProductCostHistoryBindingSourceCurrentItemChanged(object sender, System.EventArgs e)
        {
            _currentProductCostHistory = uxProductCostHistoryBindingSource.Current as Entities.ProductCostHistory;

            if (_currentProductCostHistory != null)
            {
                _currentProductCostHistory.Validate();
            }
            //_ProductCostHistory.Validate();
            OnCurrentEntityChanged();
        }
		private void OnProductCostHistoryBindingSourceCurrentItemChanged(object sender, System.EventArgs e)
		{
			_currentProductCostHistory = uxProductCostHistoryBindingSource.Current as Entities.ProductCostHistory;
			
			if (_currentProductCostHistory != null)
			{
				_currentProductCostHistory.Validate();
			}
			//_ProductCostHistory.Validate();
			OnCurrentEntityChanged();
		}