Update model on deleting a node in the diagram

GoJS
1

Hi,
I need to update the model when trying to delete a node from the diagram. Can you please give me a reference where I could find this functionality in js? Also, while integrating the gojs angular sample project with my project I am getting this error

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I did set the linkKeyProperty in GraphsLinkModel to the key that I require…but it is not working
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If the angular version does not work, I need to switch to js. Any help would be appreciated…thanks in advance.

2

There must be some other instance of GraphLinksModel being constructed. Maybe you are calling Model.fromJson and the model you are reading doesn’t have the GraphLinksModel.linkKeyProperty set?