When Frame control navigate to other page encounter a crash

Hell 36

Because of UWP application limit too much, I try to use WPF with XAML Island.

When I try to navigate to other page, I encounter a crash. May be it's a bug?
alt text

I upload my project on cloud:
https://share.weiyun.com/5cGsibY

Roy Li - MSFT 34,006 Reputation points Microsoft Vendor

2019-11-07T07:07:12.66+00:00

So you are using a frame in your code. If you want to navigate to another page from the frame, you should call Frame.Navigate(new Page()) instead of using Frame..Navigate(typeof(Page)).
Hell 36 Reputation points

2019-11-07T09:07:14.373+00:00

It's not a good idea, because Frame.Navigate need parameter‘s type is System.Type.
Roy Li - MSFT 34,006 Reputation points Microsoft Vendor

2019-11-07T09:22:09.737+00:00

From the document System.Windows.Controls.Frame class in WPF, the Frame object doesn't have an overload that requires type as a parameter. You are using the frame object from UWP controls, right? Please use the Frame object from System.Windows.Controls namespace which is the native control in WPF for navigation in WPF applications.
Hell 36 Reputation points

2019-11-07T12:31:34.58+00:00

WPF use UWP controls is Microsoft's new technology:Host a standard UWP control in a WPF app using XAML Islands

Microsoft publish this technology let WPF use UWP controls were allowed.
I encountered this problem when I tried this new technology, I think this is not an ideal result.
Roy Li - MSFT 34,006 Reputation points Microsoft Vendor

2019-11-08T01:39:45.4+00:00

Yes, I know that the XamlIsland could help WPF apps host UWP controls. XamlIsland helps WPF apps to get a modern look, feel, and functionality. But I don't think using UWP's navigation mechanism in WPF apps is allowed. WPF apps and UWP apps have different navigation mechanisms. Why do you want to use the navigation method that comes from UWP in WPF?
Hell 36 Reputation points

2019-11-08T02:10:57.74+00:00

What you said makes sense. I am going to try to change to WPF navigation.Thanks.
Hell 36 Reputation points

2019-11-08T06:37:29.36+00:00

Actually, WPF navigation(System.Windows.Navigation.NavigationWindow) can‘t work normally.
Hell 36 Reputation points

2019-11-08T12:13:35.27+00:00

I think the compatibility of Xaml Island will be very good. And I like UWP's NavigationView. Just wanna try this technology. If the UWP platform has the same power as the native platform, it would be perfect. Hope Microsoft become more perfect. Thanks for your answer.
Roy Li - MSFT 34,006 Reputation points Microsoft Vendor

2019-11-12T04:29:02.083+00:00

So you are using NavigationView to navigate. I thought you are doing navigation between native WPF pages. The navigation of UWP's NavigationView is based on UWP's Frame control and UWP's Page control. So it shouldn't work with WPF's pages or frame. I think UWP's Page control should work for navigation. Maybe you could try to create a
page as a custom control. Then use it in UWP apps. But I haven't tested about this yet.

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Vincent Sky 1 Reputation point

2019-11-26T11:49:27.15+00:00

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