TreeView for WPF | ComponentOne
C1.WPF.TreeView Namespace / C1TreeViewItem Class / IsExpandedChanged Event

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    IsExpandedChanged Event
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    Event raised when the IsExpanded property has changed.
    Syntax
    'Declaration
     
    
    <ObsoleteAttribute("Use Expanding/Expanded and Collapsing/Collapsed events instead")>
    Public Event IsExpandedChanged As EventHandler(Of PropertyChangedEventArgs(Of Boolean))
    [Obsolete("Use Expanding/Expanded and Collapsing/Collapsed events instead")]
    public event EventHandler<PropertyChangedEventArgs<bool>> IsExpandedChanged
    Event Data

    The event handler receives an argument of type C1.WPF.Core.PropertyChangedEventArgs<T> containing data related to this event. The following PropertyChangedEventArgs<T> properties provide information specific to this event.

    PropertyDescription
    The value of the property after the change.  
    The value of the property before the change.  
    See Also