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ISupportNavigationEvents.OnNavigating(DXNavigatingCancelEventArgs) Method

Called automatically before a page with a ViewModel implementing the ISupportNavigationEvents interface is unloaded from the parent frame.

Namespace: DevExpress.Core

Assembly: DevExpress.Core.v18.2.dll

Declaration

void OnNavigating(
    DXNavigatingCancelEventArgs e
)
Sub OnNavigating(
    e As DXNavigatingCancelEventArgs
)

Parameters

Name Type Description
e DevExpress.Core.DXNavigatingCancelEventArgs

A DXNavigatingCancelEventArgs object that contains event data.

Remarks

To prevent the page from being unloaded, set the e.Cancel property to true.

If the OnNavigating method's e.Cancel parameter does not equal true, the current page is unloaded and then the ISupportNavigationEvents.OnNavigated method belonging to a ViewModel of the newly loaded page is called.

See Also