TreeListView.NodeUpdated Event
Occurs after the changes made within the focused node are posted to a data source.
Namespace: DevExpress.Xpf.Grid
Assembly: DevExpress.Xpf.Grid.v20.2.dll
NuGet Packages: DevExpress.WindowsDesktop.Wpf.Grid.Core, DevExpress.Wpf.Grid.Core
Declaration
Event Data
The NodeUpdated event's data class is TreeListNodeEventArgs. The following properties provide information specific to this event:
| Property | Description |
|---|---|
| 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. |
| Node | Gets the processed node. |
| OriginalSource | Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class. Inherited from RoutedEventArgs. |
| RoutedEvent | Gets or sets the RoutedEvent associated with this RoutedEventArgs instance. Inherited from RoutedEventArgs. |
| Row | Gets the processed row. |
| 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) | When overridden in a derived class, provides a way to invoke event handlers in a type-specific way, which can increase efficiency over the base implementation. Inherited from RoutedEventArgs. |
| 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
The grid automatically validates the changes made within the focused node when the node focus is about to be moved to another node. This can also be manually accomplished by calling the DataViewBase.CommitEditing method. If all new values are valid, they are posted to the grid’s data source. As a result, the NodeUpdated event is raised. The processed node is returned by the TreeListNodeEventArgs.Node property.