Максим

C перед изучением C#

public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            pictureBox1.DoubleClick += pictureBox1_Click; //!!!!
        }
        private void pictureBox1_Click(object sender, EventArgs e)
        {
            MessageBox.Show("Contact List 1.0\nWritten by: 18ko&Ururur", "About");
        }
    }