private void btnMove_Click(object sender, EventArgs e) { LapDonHangBLL lapDonHangBLL = new LapDonHangBLL(); if (check) // là combo { ObjCombo obj = new ObjCombo(); obj.Combo = lapDonHangBLL.GetCombo(id); if (arr_combo.Count != 0) { foreach (ObjCombo a in arr_combo) { if (a.Combo.Id == id) { a.Quantity++; flagfind = true; } } if (flagfind == false) { obj.Quantity = 1; arr_combo.Add(obj); } flagfind = false; } else { obj.Quantity = 1; arr_combo.Add(obj); } } else { ObjProduct obj = new ObjProduct(); obj.Product = lapDonHangBLL.GetProduct(id);; if (arr_product.Count != 0) { foreach (ObjProduct a in arr_product) { if (a.Product.id == id) { a.Quantity++; flagfind = true; } } if (flagfind == false) { obj.Quantity = 1; arr_product.Add(obj); } flagfind = false; } else { obj.Quantity = 1; arr_product.Add(obj); } } LoadListViewSelect(); }