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RadTreeViewElementNodeExpandedChanging Event
Occurs when node is expanding.

Namespace: Telerik.WinControls.UI
Assembly: Telerik.WinControls.UI (in Telerik.WinControls.UI.dll) Version: 2018.1.220.40 (2018.1.220.40)
Syntax
public event RadTreeViewRadTreeViewCancelEventHandler NodeExpandedChanging

Value

Type: Telerik.WinControls.UIRadTreeViewRadTreeViewCancelEventHandler
See Also