How to clear the graph and create a new one ?

jgraph / mxgraph

mxGraph is a fully client side JavaScript diagramming library

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How to clear the graph and create a new one ? #474

Closed rudaoshi closed 3 years ago

rudaoshi commented 4 years ago

deleting all cells does not clear the shown graph
clear() the model results in adding new vertex failed.

tbouffard commented 4 years ago

@rudaoshi can you please provide more detatils?

what is the mxgraph version you are using?
what is the adding new vertex failed. error?
in all examples I know, calling model.clear() clears the model and new vertex can be added when enclosed within the regular model.beginUpdate()/model.endUpdate()

PrudhviMadasu commented 4 years ago

Try this, it works for me graph.removeCells(graph.getChildVertices(graph.getDefaultParent()));

nayaksnigdha commented 4 years ago

I am also facing the same issue as @rudaoshi. If I invoke graph.removeCells(graph.getChildVertices(graph.getDefaultParent())); as suggested, the vertices are removed but if there are dangling edges (unconnected edges) in the graph they are not removed. If I invoke model.clear() everything gets deleted, even dangling edges but then adding new vertex fails.