Bug 52951 - Effects not applied to NavigationPage
Summary: Effects not applied to NavigationPage
Alias: None
Product: Forms
Classification: Xamarin
Component: Forms ()
Version: 2.3.3
Hardware: PC Mac OS
: --- normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2017-03-02 00:18 UTC by david
Modified: 2017-09-21 15:34 UTC (History)
6 users (show)

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

Repro project (96.32 KB, application/zip)
2017-03-02 00:18 UTC, david

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Description david 2017-03-02 00:18:20 UTC
Created attachment 20080 [details]
Repro project

Trying to set up some Effects in NavigationPages inside a TabbedPage.

When I set up an Effect inside the NavigationPage's XAML, it doesn't get attached.

When I set up an Effect within the TabbedPage's XAML, it does.

This seems wrong.

Please see the attached example project that illustrates the problem. It's fully configured for iOS only but still illustrates the problem.


1. Run the app on iOS device/simulator.
2. Observe Debug output indicating that all NavigationPages had their Effects attached correctly.
3. In MyTabbedPage.xaml, comment out both the <NavigationPage.Effects> sections.
4. In MyNavigationPage.xaml, uncomment the <NavigationPage.Effects> section.
5. Run the app again and observe that the NavigationPage Effects are not applied.

Comment 1 Jimmy [MSFT] 2017-03-02 19:22:43 UTC
Hey David, thank you for filing this! Let me run the attached project to try confirming the issue and I will update the report accordingly.
Comment 2 Jimmy [MSFT] 2017-03-23 21:02:59 UTC
I was able to reproduce the issue described with the attached project on Forms and 2.3.4-pre5. I am confirming this report so the team can investigate further and provide more information.