private void button4_Click(object sender, EventArgs e)
{
/// думаю уже тут необходима валидация
///
this.listBox2.Items.Add(comboBox1.SelectedItem);
this.signalizatori.Add(new SU(MyCartogram.getTVSByPointXY((Point)comboBox1.SelectedItem).CanvasCord, MyCartogram.getFA(), MyCartogram.getFstep(), (Point)comboBox1.SelectedItem));
this.signalizatori[this.signalizatori.Count - 1].ReDraw(this.g);
tabControl1.SelectedIndex = 0;
}