private void loadds_goiMon(string ma)
{
listView1.Items.Clear();
danhsachgoimonBS bs = new danhsachgoimonBS();
List <danhsachGoiMon> ds = bs.load_ds_goimon(ma);
for (int i = 0; i < ds.Count; i++)
{
listView1.Items.Add(ds[i].ma_sp.ToString());
listView1.Items[i].SubItems.Add(ds[i].soluong.ToString());
listView1.Items[i].SubItems.Add(ds[i].ma_sp1.ToString());
listView1.Items[i].SubItems.Add(ds[i].gia.ToString());
}
}
private decimal thanhtoan(string ma)
{
int soluong = 0;
decimal gia = 0;
decimal tongtien = 0;
danhsachgoimonBS bs = new danhsachgoimonBS();
List <danhsachGoiMon> ds = bs.load_ds_goimon(ma);
for (int i = 0; i < ds.Count; i++)
{
soluong = Convert.ToInt32(ds[i].soluong.ToString());
gia = Convert.ToDecimal(ds[i].gia.ToString());
tongtien += (soluong * gia);
}
return(tongtien);
}