TreeView doesn't expand all node

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Summary

create project
add tree view
add event Opening for treeview
hit text:
Var docs As TreeViewNode = Me.AddNode("Documents")

Var projects As TreeViewNode = docs.AddNode("Projects")

projects.AddNode("Game.objo")

projects.AddNode("Website.objo")

Var photos As TreeViewNode = docs.AddNode("Photos")

photos.AddNode("Holiday.png")

photos.AddNode("Portrait.png")

Me.ExpandAll()

now run prog, some nodes are not expanded

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Garry

Found it. This is dispatcher race.

TreeView.AddNode and TreeViewNode.AddNode created node objects immediately, but added them to a bound C# ObservableCollections later via a dispatch thread. This meant that Me.ExpandAll() sometimes ran while the tree model was still empty, and sometimes after only the root had landed.

Fixed for the next release: https://feedback.objo.dev/bug/181