Mode for filtering a tree widget.
Callback that is invoked when a node is clicked, see BaseTreeCfg.onNodeClick.
How the nodes of a tree are
selected. When set to single
, only at most one node can be selected by clicking on it. When set to multiple
,
more than one node may be selected by clicking on each node. When set to checkbox
, each node receives a checkbox
next to it that may be used for selection.
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Drag mode for a tree widget. Defines the parent-child relationship when a node is dragged.