Zad2Main

using System;
using System.Windows.Forms;

namespace Zad2
{
    public partial class Main : Form
    {
        private User _user;
        private Random _random;
        private string _binaryValue;
        private int _maxQuastion = 5;
        private int _currentQuastion = 0;
        private int _rightAnswered = 0;

        public Main(User user)
        {
            InitializeComponent();
            _user = user;
            _random = new Random();
        }

        private void Main_Load(object sender, EventArgs e)
        {
            label1.Text = $"Здравствйте, {_user.Login},";
            this.Text = $"{_currentQuastion + 1}\\{_maxQuastion}";
            Generate();
        }

        private void Generate()
        {
            _binaryValue = Convert.ToString(_random.Next(1, 1000), 2);
            BinaryTextBox.Text = _binaryValue;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (UserTextBox.Text != "")
            {
                if (UserTextBox.Text == $"{Convert.ToInt32(_binaryValue,2)}")
                {
                    MessageBox.Show("Верно!");
                    _rightAnswered++;
                }
                else
                {
                    MessageBox.Show($"Неверно, правильный ответ был: {Convert.ToInt32(_binaryValue, 2)}");
                }
                _currentQuastion++;

                if (_currentQuastion >= _maxQuastion)
                {
                    MessageBox.Show($"Тест завершен, твоя оценка: {_rightAnswered}");
                    _currentQuastion = 0;
                    _rightAnswered = 0;
                }
                this.Text = $"{_currentQuastion + 1}\\{_maxQuastion}";
                Generate();
            }
            else
            {
                MessageBox.Show("Введите значение");
            }
        }
    }
}