I need to create a two-level tree. The first level is just the labels for the branchs. When the branch is extended, it shows a VBox that consists of
TextArea, Label, and Image. The VBox should be shown under the branch label and there can be more than one branches be extended at the same time.
The first level branchs can be dragged and dropped to change the order in the tree. Any sample code? Thanks
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