Unable to Cancel TabCloseRequested Event in WinUI3 TabView

[diluculo]

I'm currently facing an issue in my WinUI3 project related to the TabCloseRequested event in the TabView control. I've noticed that when a user clicks the close button on a tab, the TabCloseRequested event is triggered. However, I'm unable to find a way to cancel this event.

My intention is to open a file-saving or cancellation dialog when the user attempts to close a tab, but by the time the TabCloseRequested event occurs, the tab has already been deleted.

Is there any known workaround or method to prevent the TabCloseRequested event from proceeding so that I can handle the file-saving dialog before the tab is deleted?

I appreciate any assistance or insights into resolving this issue.

[diluculo]

After further investigation, I found that using tabViewItem.CloseRequested instead of tabView.TabCloseRequested resolved the problem.