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RadListViewGroupExpanding Event
Fires when a group is about to expand. Cancelable.

Namespace: Telerik.WinControls.UI
Assembly: Telerik.WinControls.UI (in Telerik.WinControls.UI.dll) Version: 2017.3.1017.40 (2017.3.1017.40)
Syntax
public event EventHandler<ListViewGroupCancelEventArgs> GroupExpanding

Value

Type: SystemEventHandlerListViewGroupCancelEventArgs
See Also