Issue with FooterMenuItems not showing Selection when manually added to xaml instead of FooterMenuItemsSource.

Describe the bug

If you have a ObservableCollection Bound to MenuItemsSource But if you add FooterMenuItems Manually in xaml, The selections do not appear on FooterMenuItems

Steps to reproduce the bug

Steps to reproduce the behavior:

Create a Blank UWP Project. Add 'Microsoft.UI.Xaml` Package.

In MainPage.xaml add below

    <muxc:NavigationView x:Name="MyNavigationView" >
        <muxc:NavigationView.MenuItemTemplate>
            <DataTemplate>
                <muxc:NavigationViewItem Icon="Favorite" Content="{Binding Content}"/>
            </DataTemplate>
        </muxc:NavigationView.MenuItemTemplate>
        <muxc:NavigationView.FooterMenuItems>
            <muxc:NavigationViewItem Icon="Favorite" Content="Footer 1"/>
        </muxc:NavigationView.FooterMenuItems>
    </muxc:NavigationView>

In MainPage.xaml.cs add below.

    private void Page_Loaded(object sender, RoutedEventArgs e)
    {
        ObservableCollection<BindableItems> bindableItems = new ObservableCollection<BindableItems>();
        for (int i = 1; i < 5; i++)
        {
            bindableItems.Add(new BindableItems() { Content = "Header " + i.ToString() });
        }
        MyNavigationView.MenuItemsSource = bindableItems;
    }

public class BindableItems
{
    public string Content { get; set; }
}

Expected behavior

Expecting Footer Item to also show selection on left side of MenuItem

Screenshots

Version Info

NuGet package version: Microsoft.UI.Xaml 2.5.0

Windows app type:

UWP	Win32
Yes

Windows 10 version	Saw the problem?
Insider Build (xxxxx)	No
May 2020 Update (19041)	Yes
November 2019 Update (18363)
May 2019 Update (18362)
October 2018 Update (17763)
April 2018 Update (17134)
Fall Creators Update (16299)
Creators Update (15063)

Device form factor	Saw the problem?
Desktop	Yes
Xbox
Surface Hub
IoT

[chingucoding]

@avknaidu The issue is being caused by the usage of the MenuItemTemplate. As a temporary workaround, you can try to use NavigationView without a datatemplate, e.g. by implementing your own “ElementFactory” and pass the processed collection to NavigationView.

[chingucoding]

I would like to look into this.