Memory leak when use x:Bind in winUI3

Describe the bug

Hi, BlankPage.Xaml code:

<Window>
    <Grid>
        <Button Click="{x:Bind click_event}" />
    </Grid>
</Window

BlankPage.xaml.cs code:

private void click_event(object sender, RoutedEventArgs e)
    {
        int a = 1;
    }
    ~BlankPage1()
    {
        int a = 1;
    }

From main window, I open BlankPage window and close it:

    private  ButtonClick()
            {
                var aa = new BlankPage1();
                aa.Activate();
                aa.Close();
                aa = null;
                GC.Collect();
            }

However, BlankPage object doesn’t released (doesn’t run into ~BlankPage function). And if you continue click to open and close the BlankPage, memory keeps increasing.

Otherwise, if I don’t use x:Bind in BlankPage.xaml: <Button Click="click_event" />

BlankPage will be released as normal and no memory leak happened.

So, is it a problem on x:Bind? Also, I tried with Bindings.StopTracking(); but doesn’t work.

Also asked at: https://docs.microsoft.com/en-us/answers/questions/898874/memory-leak-when-close-window-in-winui3.html Thanks

Steps to reproduce the bug

Click to open and close BlankPage window and resource of BlankPage’s view is not released.

Expected behavior

No response

Screenshots

No response

NuGet package version

WinUI 3 - Windows App SDK 1.1.1

Windows app type

• UWP
• Win32

Device form factor

No response

Windows version

No response

Additional context

No response

[HO-COOH]

I just want to help to make this not get closed

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