LookUpEditBase.PopupContentSelectionChanged Event
Occurs when an item selection (highlighting) is moved to another item within the editor’s dropdown.
Namespace: DevExpress.Xpf.Editors
Assembly: DevExpress.Xpf.Core.v24.1.dll
NuGet Package: DevExpress.Wpf.Core
Declaration
Event Data
The PopupContentSelectionChanged event's data class is SelectionChangedEventArgs. The following properties provide information specific to this event:
| Property | Description |
|---|---|
| AddedItems | Gets a list that contains the items that were selected. |
| Handled | Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route. Inherited from RoutedEventArgs. |
| OriginalSource | Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class. Inherited from RoutedEventArgs. |
| RemovedItems | Gets a list that contains the items that were unselected. |
| RoutedEvent | Gets or sets the RoutedEvent associated with this RoutedEventArgs instance. Inherited from RoutedEventArgs. |
| Source | Gets or sets a reference to the object that raised the event. Inherited from RoutedEventArgs. |
The event data class exposes the following methods:
| Method | Description |
|---|---|
| InvokeEventHandler(Delegate, Object) | Performs the proper type casting to call the type-safe SelectionChangedEventHandler delegate for the SelectionChanged event. |
| OnSetSource(Object) | When overridden in a derived class, provides a notification callback entry point whenever the value of the Source property of an instance changes. Inherited from RoutedEventArgs. |
Remarks
For a checked combo box, the PopupContentSelectionChanged event is fired each time an item, displayed within the editor’s dropdown, has been checked or unchecked. For a native combo box or lookup editor, this event is fired when an item highlighting is moved to another item.