/// <summary>
///
/// </summary>
/// <param name="control"></param>
public void Attach(ComboBox control)
{
if (control == null)
{
throw new ArgumentNullException("control");
}
if (Handle != IntPtr.Zero)
{
throw new InvalidOperationException("behavior is attached");
}
Handle = control.Handle;
MessageHook.Subclass(control.Parent.Handle, Callback);
}
