DialogController.Cancelling Event

Occurs when executing the current Dialog Controller’s DialogController.CancelAction.

Namespace: DevExpress.ExpressApp.SystemModule

Assembly: DevExpress.ExpressApp.v24.1.dll

NuGet Package: DevExpress.ExpressApp

Declaration

C#

public event EventHandler Cancelling

VB.NET

Public Event Cancelling As EventHandler

Event Data

The Cancelling event's data class is EventArgs.

Remarks

When executing the Action specified by the Dialog Controller’s DialogController.CancelAction property, the current pop-up Window is closed. Handle the Cancelling event to perform custom actions before closing the Window.

If you need to cancel closing the current pop-up Window, set the DialogController.CanCloseWindow property to false. By default, this property is set to true.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the Cancelling event.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

XAF_how-to-show-filter-dialog-before-listview/CS/E1554.Module/ShowFilterDialogController.cs#L44

dialogCotnroller.Accepting += new EventHandler<DialogControllerAcceptingEventArgs>(dialogCotnroller_Accepting);
dialogCotnroller.Cancelling += dialogCotnroller_Cancelling;
dialogCotnroller.ViewClosed += dialogCotnroller_ViewClosed;

VB.NET

XAF_how-to-show-filter-dialog-before-listview/VB/E1554.Module/ShowFilterDialogController.vb#L45

AddHandler dialogCotnroller.Accepting, AddressOf dialogCotnroller_Accepting
AddHandler dialogCotnroller.Cancelling, AddressOf dialogCotnroller_Cancelling
AddHandler dialogCotnroller.ViewClosed, AddressOf dialogCotnroller_ViewClosed