I am doing a custom control, that should be painted like as standard one, but also having a Icon displayed near it.

So, I jet overrided OnPaint like this:

protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
{
    base.OnPaint(e);
    e.Graphics.DrawIcon(theIcon, X1, Y1 - iconSize.Width / 2);
}

Now, everything is OK, but when my control moves, the icon still remains drawn on the ancient place.

What should I add to manage it properly?

In the image we can see that after moving from top to bottom the line(custom control) even is not properly redrawn.

I tried to do

public override void Invalidate()
{
    base.Invalidate();
    if (Parent != null) {
        Parent.Invalidate(new Rectangle(
            X1, Y1 - iconSize.Width / 2, 
            iconSize.Width, iconSize.Height));
    }
}

but this does not work - when changing location the Invalidate is not even called.

If it matter the custom control inherits from VisualBasic.PowerPacks.LineShape component.