aspnet-devexpress-dot-web-dot-aspxtreelist-dot-aspxtreelist-ab0f8895.md
Enables you to prevent a node from being edited.
Namespace : DevExpress.Web.ASPxTreeList
Assembly : DevExpress.Web.ASPxTreeList.v25.2.dll
NuGet Package : DevExpress.Web
public event TreeListNodeEditingEventHandler StartNodeEditing
Public Event StartNodeEditing As TreeListNodeEditingEventHandler
The StartNodeEditing event's data class is TreeListNodeEditingEventArgs. The following properties provide information specific to this event:
| Property | Description |
|---|---|
| Cancel | Gets or sets a value indicating whether the event should be canceled. Inherited from CancelEventArgs. |
| NodeKey | Gets the edited node’s key value. |
The StartNodeEditing event occurs when an end-user has clicked the Edit command or the ASPxTreeList.StartEdit method has been called. To prevent switching the ASPxTreeList to edit mode, set the event parameter’s Cancel property to true.
To obtain the edited node, use the ASPxTreeList.FindNodeByKeyValue method. Its key value is returned by the event parameter’s TreeListNodeEditingEventArgs.NodeKey property.
The StartNodeEditing event isn’t raised when an end-user starts editing a new node.
To learn more, see Data Editing.
See Also