private void extButton2_Click(object sender, EventArgs e)
{
CheckedListBoxForm f = new CheckedListBoxForm();
f.Items.AddRange(new string[] { "One", "Two", "Three", "Four" });
f.PositionBelow(extButton2, new Size(200, 500));
f.SetChecked("Two;Four");
f.CheckedChanged += F_CheckedChanged;
f.Show(this);
}
