private void AddOrUpdateToList(IList <SaleBillDetailViewModel> saleBillDetailViewModels, SaleBillDetailViewModel saleBillDetailViewModel, int index)
{
var item = saleBillDetailViewModels.SingleOrDefault(p => p.ProductId == saleBillDetailViewModel.ProductId);
if (item != null)
{
item.Quantity = item.Quantity + 1;
}
else
{
if (index >= saleBillDetailViewModels.Count)
{
saleBillDetailViewModels.Add(saleBillDetailViewModel);
}
else
{
saleBillDetailViewModels[index] = saleBillDetailViewModel;
}
}
}
private void Name_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
var row = GetParent <DataGridRow>((TextBlock)sender);
var index = DataGrid_SaleBillDetail.Items.IndexOf(row.Item);
SearchProductsWindow searchProductsWindow = new SearchProductsWindow();
searchProductsWindow.ShowDialog();
var product = searchProductsWindow.product;
if (product == null)
{
return;
}
var item = new SaleBillDetailViewModel(product);
if (item != null)
{
AddOrUpdateToList(saleBillViewModel.SaleBillDetailViewModels, item, index);
DataGrid_SaleBillDetail.ItemsSource = null;
DataGrid_SaleBillDetail.ItemsSource = saleBillViewModel.SaleBillDetailViewModels;
DataGrid_SaleBillDetail.SelectedItem = item;
}
}
