Ответ:
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 WindowsFormsApp1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
}
private void textBox2_TextChanged(object sender, EventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
var a = textBox1.Text;
var a1 = int.Parse(a);
var b = textBox2.Text;
var b1 = int.Parse(b);
var x = a1;
for (; a1
{
x = a1 * a1;
listBox1.Items.Add(a1 + " в квадрате = " + x);
}
}
private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
}
}
}