private void AddItemToOrder(string itemName, int quantity)
{
int.TryParse(insertedOrderId, out int orderNumber);
// Get item ID
int itemId = GetItemId(itemName);
// Setting up a variable for the datatable from the database
RestaurantDataSet.OrderItemsDataTable orderItems = new RestaurantDataSet.OrderItemsDataTable();
// Setting up an order items adaptor and it's to fill in the datatable
RestaurantDataSetTableAdapters.OrderItemsTableAdapter orderItemsTableAdap = new RestaurantDataSetTableAdapters.OrderItemsTableAdapter();
// Getting the order items data from the database
orderItemsTableAdap.GetData();
// Filling the data to the datatable
orderItemsTableAdap.Fill(orderItems);
// Add the selection to the preview list
orderPreviewListBox.Items.Add(itemName + " (" + quantity + ")");
// Adding the new record to the database
orderItemsTableAdap.Insert(quantity.ToString(), itemId, orderNumber);
}
