private void Confirm_Click(object sender, RoutedEventArgs e) { if (selectedAdd == true) { if (order.customer.custID != null && (order.listOfItems.Count != 0)) { selectedCust = false; SQL_Calls.AddNewOrder(SQL_Calls.OrderID.ToString(), "2019-12-20", order.customer.custID, "PAID", "000" + Loc.ToString()); foreach (InventoryEntry c in order.listOfItems) { SQL_Calls.AddNewProductToOrder(SQL_Calls.OrderID.ToString(), c.SKU, c.quantity); } foreach (InventoryEntry c in LocInventory.Items) { SQL_Calls.UpdateInventory(c.quantity, c.branchID, c.SKU); } Reciept orderReciept = new Reciept(order, Loc); orderReciept.ShowDialog(); this.Close(); } } else { MessageBox.Show("Must Add a Select Item First!\n(Click On An Item,\n Select a Quantity From The Dropdown,\n And Click 'Add Selected')"); } }