Draw a link with no ToNode

In GoDiagram for winforms how can I draw a link on the GoView control specifying only a FromNode/port (Start drawing from this location) and no ToNode? Or do I need to use e.g. a dummy, not visible, ToNode?

| node |o- - - - - - - -x

o - FromPort
x - release mouse at this point

I specify which link to use on GoView ctrl like this:

goView1.NewLinkClass = typeof(MyLabeledLink);
MyLabeledLink inherits GoLabeledLink

The MovableLinkApp sample has a link class that doesn’t need to be connected at both ends. It doesn’t do the exact behavior you are asking for here (creating such a link with a drag), but you can probably figure it out. Let me know if you can’t.