C#

<br />
namespace MyControls {<br />
<br />
  public class MyCustomControl : System.Windows.Forms.Label <br />
  {<br />
    public enum MyLabelType { High, Low, Special, Hidden };<br />
<br />
    private MyLabelType myLabelType;<br />
<br />
    // constructor<br />
    public MyCustomControl <br />
    {<br />
       // set default value<br />
       myLabelType = MyControls.MyCustomControl.MyLabelType.Special;<br />
    }<br />
<br />
  ...<br />
<br />
    // public accessor<br />
    [Bindable(true), Category("Custom Properties"),<br />
     Description("My Custom Control ...")]<br />
    public MyControls.MyCustomControl.MyLabelType LabelType<br />
    {<br />
      get ... <br />
      set ...<br />
    } <br />
<br />
...<br />
<br />
  }<br />
}<br />

private void btnShow_Click(object sender, System.EventArgs e)
{
  FormTwo = new Form2(ref this);
  FormTwo.Show();
}

// .. yes form one was declared up here somewhere as public
public Form2(ref Form1 PassingForm)
{
  InitializeComponent();

  FormOne = PassingForm;
}