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Nullreference exception when adding link model target/source ports

See original GitHub issue

For some reason the following code throws a NRE Am I doing something wrong?


            if (parent is not null)
                var link = new LinkModel(parent, current)
                    TargetMarker = LinkMarker.Arrow



   at Blazor.Diagrams.Core.Layers.LinkLayer.OnItemAdded(BaseLinkModel link)
   at Blazor.Diagrams.Core.BaseLayer`1.Add(T item)
   at ForkHierarchy.Pages.Index.<RenderNodeAsync>d__24.MoveNext()

Checking whether I am adding a null value to SetSource/TargetPort, shows me that they do have values: image

Issue Analytics

  • State:closed
  • Created 10 months ago
  • Comments:15

github_iconTop GitHub Comments

AlmightyLkscommented, Nov 12, 2022

Oh! I didn’t know you had to add a PortRenderer to the custom node razor file! 😄 My bad

With this all my questions in this regards were answered. Thanks

zHaytamcommented, Nov 12, 2022

I’ll need more information. Firstly, how are you rendering your ports?

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