using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms;

namespace WindowsFormsApplication3
{
public partial class Form1 : Form { public Form1() { InitializeComponent(); }

private void Form1_Load(object sender, EventArgs e) {

}

double amount; double quantity; double subtotal; string inValue; double totaldue; double tax; double itemtax; string item;

private void radcappucino_CheckedChanged(object sender, EventArgs e) { if(radcappucino.Checked == true) { amount = 100; txtitemamount.Text = "100"; item = "Cappucino"; txtsubtotal.Clear();

} }

private void radlatte_CheckedChanged(object sender, EventArgs e) { if(radlatte.Checked == true) { amount = 150; txtitemamount.Text = "150"; item = "Latte"; txtsubtotal.Clear(); } }

private void btncalculate_Click(object sender, EventArgs e) { inValue = txtquantity.Text; quantity = double.Parse(inValue);

subtotal = quantity * amount; itemtax = subtotal * tax; totaldue = subtotal + itemtax;

txtsubtotal.Text = String.Format("{0:C}", subtotal).ToString(); txttax.Text = string.Format("{0:C}", itemtax).ToString(); txttotaldue.Text = string.Format("{0:c}", totaldue).ToString(); }

private void radexpresso_CheckedChanged(object sender, EventArgs e) { if(radexpresso.Checked == true) { amount = 200; txtitemamount.Text = "200"; item = "Expresso"; txtsubtotal.Clear(); } }

private void radicelatte_CheckedChanged(object sender, EventArgs e) { if(radicelatte.Checked == true) { amount = 120; txtitemamount.Text = "120"; item = "Ice Latte"; txtsubtotal.Clear(); } }

private void radicecappucino_CheckedChanged(object sender, EventArgs e) { if(radicecappucino.Checked == true) { amount = 110; txtitemamount.Text = "110"; item = "Ice Cappucino"; txtsubtotal.Clear(); } }

private void chktakeout_CheckedChanged(object sender, EventArgs e) { if(chktakeout.Checked == true) { tax = 0.75;

} }

private void btnneworder_Click(object sender, EventArgs e) { txtquantity.Clear(); txtitemamount.Clear(); txtsubtotal.Clear(); txttax.Clear(); txttotaldue.Clear(); chktakeout.Checked = false;

label6.Text = ("Order\tQuantity\tItem Amount\tTotal\n"); label6.Text = (item+"\t"+quantity+"\t"+amount+"\t"+totaldue); }

private void btnexit_Click(object sender, EventArgs e) { MessageBox.Show("Thank You for Using This Application, Have a nice day", "Windows Form Application!"); { this.Close(); } } }
}