Practica 2.3 Visual

using System;

usingSystem.Collections.Generic;

usingSystem.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

usingSystem.Windows.Forms;

namespaceWindows2_33practica_2

{

public partial class Form1 :Form

{

double costo, costototal;

public Form1()

{

costo = costototal = 0;

InitializeComponent();

}

private voidbutton1_Click(objectsender, EventArgs e)

{

costo =double.Parse(textBox1.Text);

costototal = costo + costo * 0.12 + costo * 0.06;

textBox2.Text = costototal.ToString();

}

private voidbutton2_Click(objectsender, EventArgs e)

{

textBox1.Clear();

textBox2.Clear();

textBox1.Focus();

}

private voidbutton3_Click(objectsender, EventArgs e)

{

Close();

}

}

}