Hi,

I'm creating a custom WinForms TextBox control, like this:

class MyTest : TextBox
{
    protected override void OnEnter(EventArgs e)
    {
        this.BackColor = Color.Yellow;
    }
    protected override void OnLeave(EventArgs e)
    {
        this.BackColor = Color.White;
    }
}

When I build the project, I cannot see the control. Can anyone explain why not?

Thanks in advance.