ComponentOne Input Library for WPF
C1.WPF.Input Namespace / C1DropDownButton Class / IsDropDownOpenChanged Event

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    IsDropDownOpenChanged Event (C1DropDownButton)
    In This Topic
    Called when the drop-down popup is opened or closed.
    Syntax
    'Declaration
 

    Public Event IsDropDownOpenChanged As EventHandler(Of PropertyChangedEventArgs(Of Boolean))
    public event EventHandler<PropertyChangedEventArgs<bool>> IsDropDownOpenChanged
    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
    NewValueThe value of the property after the change.  
    OldValueThe value of the property before the change.  
    See Also

    Reference

    C1DropDownButton Class
    C1DropDownButton Members