Create Dangling Link

GoDiagram (6 and previous)
1

I am trying to create a link that goes to a port but comes from nowwhere. Here is the code I am using:

Dim MyInletWSLink As WaterLink = New WaterLink MyInletWSLink.ToPort = MyEcon.TopInPort MyInletWSLink.FromPort = Nothing PF.govMain.Document.Add(MyInletWSLink)
Unfortunately the ToPort won't connect. If I do put in a port in the MyInletWSLink.FromPort it links up fine to both ports.
I would also like to know how to define where the From end of the link be positioned on the GoView.
2

UpdateRoute can’t run without ports on both ends, so there is no path for the link. You can add a couple of points:



testlink.AddPoint(10, 10);

testlink.AddPoint(testnode.GetLeftPort(1).GetToLinkPoint(testlink));



works for me. (in addition to your code)



3

For those interested here is the code I used and what it looks like.

WaterLink is an Inherited GoLabeledLink with orthogonal=true
govMain is my main GoView
Dim MyInletWSLink As WaterLink = New WaterLink MyInletWSLink.RealLink.ClearPoints() Dim MyPoint As Drawing.PointF Dim MyPoint1 As Drawing.PointF MyPoint = MyEcon.GetLeftPort(1).GetToLinkPoint(MyInletWSLink) MyPoint1 = MyPoint MyPoint1.X = MyPoint1.X - 60 MyPoint1.Y = MyPoint1.Y - 40 MyInletWSLink.RealLink.AddPoint(MyPoint1) MyPoint.X = MyPoint.X MyPoint.Y = MyPoint.Y - 40 MyInletWSLink.RealLink.AddPoint(MyPoint) MyInletWSLink.RealLink.AddPoint(MyEcon.GetLeftPort(1).GetToLinkPoint(MyInletWSLink)) PF.govMain.Document.Add(MyInletWSLink)