max min

//6. Maximum and minimum of three numbers
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 min_max
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //find max button
            int max;
            max = int.Parse(textBox1.Text);

            if (max < int.Parse(textBox2.Text))
                max = int.Parse(textBox2.Text);

            if (max < int.Parse(textBox3.Text))
                max = int.Parse(textBox3.Text);

            textBox4.Text = max.ToString();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            //find min button
            int min;
            min = int.Parse(textBox1.Text);

            if (min > int.Parse(textBox2.Text))
                min = int.Parse(textBox2.Text);

            if (min > int.Parse(textBox3.Text))
                min = int.Parse(textBox3.Text);

            textBox5.Text = min.ToString();
        }

        private void button3_Click(object sender, EventArgs e)
        {
            //reset function
            textBox1.Clear();
            textBox2.Clear();
            textBox3.Clear();
            textBox4.Clear();
            textBox5.Clear();
        }
    }
}