'Declaration
<C1DescriptionAttribute("C1TreeView.HeaderCheckStateChanging", "Occurs before the tree column header checkbox is checked. Allows to cancel the change.")> <C1CategoryAttribute("Behavior")> Public Event HeaderCheckStateChanging As CancelEventHandler
[C1Description("C1TreeView.HeaderCheckStateChanging", "Occurs before the tree column header checkbox is checked. Allows to cancel the change.")] [C1Category("Behavior")] public event CancelEventHandler HeaderCheckStateChanging
Event Data
The event handler receives an argument of type CancelEventArgs containing data related to this event. The following CancelEventArgs properties provide information specific to this event.
Property | Description |
---|---|
Cancel |
See Also