Bug 36435 - [UWP] Back navigation while a Editor has focus crashes the app
Summary: [UWP] Back navigation while a Editor has focus crashes the app
Alias: None
Product: Forms
Classification: Xamarin
Component: Forms ()
Version: 2.0.0
Hardware: PC Windows
: --- normal
Target Milestone: ---
Assignee: Rui Marinho
Depends on:
Reported: 2015-12-01 17:26 UTC by Michael Rumpler
Modified: 2015-12-01 22:06 UTC (History)
4 users (show)

Tags: ac
Is this bug a regression?: ---
Last known good build:

repro project (129.80 KB, application/x-zip-compressed)
2015-12-01 17:26 UTC, Michael Rumpler

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Description Michael Rumpler 2015-12-01 17:26:22 UTC
Created attachment 14062 [details]
repro project

An exception is thrown, when an Editor has focus and the back button is clicked on UWP.

A repro project is attached. Run the UWP project, click the Editor Button to open the subpage, focus the Editor and click the back arrow. The app crashes with the following exception:

System.NullReferenceException: Object reference not set to an instance of an object.
   at Xamarin.Forms.Platform.UWP.EditorRenderer.OnLostFocus(Object sender, RoutedEventArgs e)

If the Editor loses focus while the page is open, then it works.
If you run the WinRT project (or any other platform which is not included in the sample), then it works fine.
Comment 1 Rui Marinho 2015-12-01 22:06:28 UTC
Should be fixed in 2.0.1-pre1