Hotel Menu Application in Windows C#

namespace PRG16_HOTEL_MENU_listview_
{
public partial class Form1 : Form
{
static int i = 0,total=0;

public Form1()
{
InitializeComponent();
}

private void btn_order_Click(object sender, EventArgs e)
{
int price, quantity;
string item;

price = int.Parse(listView1.SelectedItems[0].SubItems[1].Text);
quantity = int.Parse(txt_quantity.Text);
price = price * quantity;
item = listView1.SelectedItems[0].Text;
listView2.Items.Add(item);
listView2.Items[i].SubItems.Add(price.ToString());
i++;
total = total + price;
lbl_total.Text = total.ToString();
lbl_total.Visible = true;

}

private void btn_orderCancle_Click(object sender, EventArgs e)
{

if (listView2.SelectedItems != null)
{
int deduct=0;
var confirm = MessageBox.Show("Are Sure You Want Cancle Order", "DELETE ORDER", MessageBoxButtons.YesNo, MessageBoxIcon.Warning);

if (confirm == DialogResult.Yes)
{

for (int i = 0; i < listView2.Items.Count; i++)
{
if (listView2.Items[i].Selected)
{

deduct = int.Parse(listView2.Items[i].SubItems[1].Text);
listView2.Items[i].Remove();
i--;
}
}

}
total = total - deduct;
lbl_total.Text=total.ToString();
lbl_total.Visible = true;
}
else
{
MessageBox.Show("Select Item For Cancle order", "Cancle Order", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
}

Finally we get the following output in the application:

I hope this article is helpful for you.