I have open link enabled by setting ValidUnconnectedLinks to ValidUnconnectedLinks.Allowed.
and this is working as expected but the issue is in the unconnected link if I select the link and drag connected end of the link on any where on diagram it should not create a link rather it should disallow it.
To get the above feature I have overridden the IsValidLink() and it returns false if fromnode and tonode are null. But I see that even though this method returns false the link is created without any nodes.
Any suggestions on this ?