Absolute Value Solver in C#

A simple program that I wrote using Microsoft Visual C#.NET to solve the absolute value of the given negative integer number by the user. The code is very simple and easy to understand.

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Sample Program Output

Program Listing

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace WindowsFormsApplication3

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        private void button1_Click(object sender, EventArgs e)

        {

            int abs_value = 0, solve_abs=0;

            if (!int.TryParse(textBox1.Text, out abs_value))

            {

                MessageBox.Show("I need just a number in the textbox.");

                textBox1.Text = "";

                textBox1.Focus();

            }

            

            else

            {

                abs_value = Convert.ToInt32(textBox1.Text);

                solve_abs = Math.Abs(abs_value); label3.Text = "The absolute value of " 

                    + abs_value +" is " + solve_abs + ".";

            }

        }

        private void button2_Click(object sender, EventArgs e)

        {

            textBox1.Text = "";

            label3.Text = " ";

            textBox1.Focus();

        }

    }

}