protected void btnAddDetail_Click(object sender, EventArgs e)
{
Page.Validate("AddDetail");
if (Page.IsValid)
{
int id = Detail.Any() ? Detail.Max(row => row.ID) + 1 : 1;
Item selectedItem = ItemService.Get(Convert.ToInt32(ddlItem.SelectedValue));
Detail.Add(
new PackageDetailViewModel()
{
ID = id,
ItemBarcode = selectedItem.Barcode,
ItemDescription = selectedItem.Description,
ItemID = selectedItem.ID,
Quantity = Convert.ToInt32(txtQuantity.Text),
UnitPrice = Convert.ToDecimal(txtUnitPrice.Text),
UnitName = selectedItem.UnitName1
});
WebFormHelper.ClearTextBox(txtQuantity, txtUnitPrice);
ddlItem.SelectedIndex = 0;
gvwDetail.DataSource = Detail;
gvwDetail.DataBind();
}
}