View.QueryCanClose Event
Occurs when checking whether a View can be closed.
Namespace: DevExpress.ExpressApp
Assembly: DevExpress.ExpressApp.v20.2.dll
NuGet Package: DevExpress.ExpressApp
Declaration
Event Data
The QueryCanClose event's data class is CancelEventArgs. The following properties provide information specific to this event:
Property | Description |
---|---|
Cancel | Gets or sets a value indicating whether the event should be canceled. |
Remarks
The QueryCanClose event is raised as a result of calling the View.CanClose and View.Close methods. Handle this event to prohibit closing a View under certain conditions. For this purpose, set the handler’s CancelEventArgs.Cancel parameter to true. By default, this parameter is set to false.
Note
The QueryCanClose event is raised for root views only (see View.IsRoot).