/// <summary>
/// If any part is removed from this group,
/// be sure to remove any references in local fields.
/// </summary>
/// <param name="obj"></param>
public override bool Remove(GoObject obj)
{
bool result = base.Remove(obj);
if (obj == myIcon)
{
myIcon = null;
return(result);
}
if (obj == myLabel)
{
myLabel.RemoveObserver(this);
myLabel = null;
return(result);
}
if (obj == myInPort)
{
myInPort = null;
return(result);
}
if (obj == myOutPort)
{
myOutPort = null;
}
return(result);
}
