wpf-devexpress-dot-xpf-dot-grid-dot-treelistview-e1ca81b7.md
Occurs when a cell value is changed.
Namespace : DevExpress.Xpf.Grid
Assembly : DevExpress.Xpf.Grid.v25.2.dll
NuGet Package : DevExpress.Wpf.Grid.Core
public event TreeListCellValueChangedEventHandler CellValueChanged
Public Event CellValueChanged As TreeListCellValueChangedEventHandler
The CellValueChanged event's data class is TreeListCellValueChangedEventArgs. The following properties provide information specific to this event:
| Property | Description |
|---|---|
| Cell | Gets a processed cell. Inherited from TreeListCellValueEventArgs. |
| Column | Gets a column that contains the edited cell. Inherited from TreeListCellValueEventArgs. |
| 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. Inherited from TreeListNodeEventArgs. |
| OldValue | Gets the cell’s previous value. |
| 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. Inherited from TreeListNodeEventArgs. |
| Source | Gets or sets a reference to the object that raised the event. Inherited from RoutedEventArgs. |
| Value | Gets or sets the processed cell’s value. Inherited from TreeListCellValueEventArgs. |
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. |
The TreeListView raises the CellValueChanged event in the following cases:
The CellValueChanged event does not occur when you change a cell value in a data source.
The TreeListEditorEventArgs.Node and TreeListCellValueEventArgs.Column properties identify a cell whose value is changed. The TreeListCellValueEventArgs.Value property returns a new cell value.
Refer to the following topic for more information: Obtain and Set Cell Values in Code.
If you want to maintain a clean MVVM pattern and process cell value changes in a View Model, create a command and bind it to the CellValueChangedCommand property.
See Also