private void btn_Bestelling_Click(object sender, EventArgs e)
{
ListViewItem item = listView_Register.SelectedItems[0];
Drink Drink = (Drink)item.Tag;
ListViewItem item2 = listView_Register2.SelectedItems[0];
Student Student = (Student)item2.Tag;
new Order()
{
Id = orderService.OrderCount(),
Drink = Drink,
Student = Student,
Date = DateTime.Now,
Number = int.Parse(txtbox_Aantal.Text)
};
orderService.Db_Update_Order(orderService.OrderCount(), Drink, Student, DateTime.Now, int.Parse(txtbox_Aantal.Text));
MessageBox.Show("Order Placed");
txtbox_Aantal.Text = "1";
}