private void item_Select(object sender, EventArgs e)
{
if (sbxItem.ItemID > 0)
{
sales_order sales_order = sales_orderViewSource.View.CurrentItem as sales_order;
item item = dbContext.items.Where(x => x.id_item == sbxItem.ItemID).FirstOrDefault();
if (item != null && item.id_item > 0 && sales_order != null)
{
Task Thread = Task.Factory.StartNew(() => select_Item(sales_order, item));
}
sales_order.RaisePropertyChanged("GrandTotal");
}
}
private void calculate_vat(object sender, EventArgs e)
{
sales_order sales_order = (sales_order)sales_orderDataGrid.SelectedItem;
sales_order.RaisePropertyChanged("GrandTotal");
if (sales_order != null)
{
List <sales_order_detail> sales_order_detail = sales_order.sales_order_detail.ToList();
if (sales_order_detail.Count > 0)
{
dgvvat.ItemsSource = sales_order_detail
.Join(dbContext.app_vat_group_details, ad => ad.id_vat_group, cfx => cfx.id_vat_group
, (ad, cfx) => new { name = cfx.app_vat.name, value = ad.unit_price * cfx.app_vat.coefficient, id_vat = cfx.app_vat.id_vat, ad })
.GroupBy(a => new { a.name, a.id_vat, a.ad })
.Select(g => new
{
id_vat = g.Key.id_vat,
name = g.Key.name,
value = g.Sum(a => a.value * a.ad.quantity)
}).ToList();
}
}
}
