Adding a TextBox to a page in a NavigationView crashes a WinAppSdk 1.2 app

[ackh]

Describe the bug

Adding a TextBox control to a page that is programmatically added via NavigationView crashes the app. This used to work in WinAppSdk 1.1.5 but now fails in WinAppSdk 1.2.221109.1.

Steps to reproduce the bug

Prerequisites:

• Windows App SDK 1.2 is installed

1. Download the attached zip file and extract its content
2. Open "WinAppSdk_Issue_1.2.sln" in Visual Studio 17.4
3. Build and run the solution
4. Switch to the "Page2" tab of the NavigationView. The app crashes with an access violation exception in the LoadComponent function of file Microsoft.UI.Xaml.h

Expected behavior

TextBox elements can be used in XAML without crashing the app.

Screenshots

No response

NuGet package version

No response

Windows app type

• UWP
• Win32

Device form factor

Desktop

Windows version

Windows 10 (21H2): Build 19044

Additional context

At the time of this bug submission, the "Nuget package version" drop down does not list the WinAppSdk 1.2 package. The NuGet packaged used is as follows:

Microsoft.WindowsAppSDK.1.2.221109.1

[MikeHillberg]

Thanks for opening this. Until it's serviced, there's a workaround in this comment.

[gabbybilka]

🎉Microsoft.WindowsAppSDK.1.2.221116.1 has been released which fixes this issue.

Handy links:

• Release Notes
• Official Nuget Release