orai0317

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 WindowsFormsApplication1
{
  public partial class Form1 : Form
  {
    public Form1()
    {
      InitializeComponent();
    }
    private bool paritas(int a)
    {
      if (a % 2 == 0)
      {
        return true;
      }
      else
      {
        return false;
      }
    }
    private void button1_Click(object sender, EventArgs e)
    {
      Random vel = new Random();
      listBox1.Items.Clear();
      int a = 0, b = 0;
      int szamlal = 0;
      int rand;
      if (radioButton1.Checked)
      {
        b = 10;
      }
      if (radioButton2.Checked)
      {
        a = 10;
        b = 100;
      }
      if (radioButton3.Checked)
      {
        a = 100;
        b = 1000;
      }
      if (checkBox1.Checked && !checkBox2.Checked)
      {
        szamlal = 0;
        do
        {
          rand = vel.Next(a, b);
          if (paritas(rand))
          {
            listBox1.Items.Add(rand);
            szamlal++;
          }
        } while (szamlal < 10);
      }
      else if (checkBox2.Checked && !checkBox1.Checked)
      {
        szamlal = 0;
        do
        {
          rand = vel.Next(a, b);
          if (!paritas(rand))
          {
            listBox1.Items.Add(rand);
            szamlal++;
          }
        } while (szamlal < 10);
      }
      else if (checkBox1.Checked && checkBox2.Checked)
      {
        for (int i = 0; i < 10; i++)
        {
          listBox1.Items.Add(vel.Next(a, b));
        }
      }
    }
  }
}