NavigationView SelectionChanged event not firing

[Muxammadamin-Ulmasaliyev]

Describe the bug

The SelectionChanged event in the NavigationView control does not fire when a new item is selected.

To Reproduce

1. Create a NavigationView control in a WPF application.
2. Add several NavigationViewItems to the control.
3. Implement the SelectionChanged event handler in the code-behind.
4. Run the application and attempt to select different items in the NavigationView.

Expected behavior

The SelectionChanged event should fire each time a different item is selected, allowing appropriate handling of the selection change.

Screenshots

No response

OS version

Windows 11 pro 23H2

.NET version

.NET 8

WPF-UI NuGet version

WPF-UI 3.0.5

Additional context

 <ui:NavigationView
     x:Name="sidebarNavigationView"
     IsPaneToggleVisible="True"
     OpenPaneLength="130"
     SelectionChanged="sidebarNavigationView_SelectionChanged">
     <ui:NavigationView.MenuItems>
         <ui:NavigationViewItem Content="Collections">
             <ui:NavigationViewItem.Icon>
                 <ui:SymbolIcon Style="{StaticResource LargeSymbolIconStyle}" Symbol="Folder48" />
             </ui:NavigationViewItem.Icon>
         </ui:NavigationViewItem>
         <ui:NavigationViewItem Content="Environments">
             <ui:NavigationViewItem.Icon>
                 <ui:SymbolIcon Style="{StaticResource LargeSymbolIconStyle}" Symbol="AppsListDetail24" />
             </ui:NavigationViewItem.Icon>
         </ui:NavigationViewItem>
         <ui:NavigationViewItem Content="History">
             <ui:NavigationViewItem.Icon>
                 <ui:SymbolIcon Style="{StaticResource LargeSymbolIconStyle}" Symbol="History48" />
             </ui:NavigationViewItem.Icon>
         </ui:NavigationViewItem>
     </ui:NavigationView.MenuItems>
     <ui:NavigationView.FooterMenuItems>
         <ui:NavigationViewItem Content="Settings">
             <ui:NavigationViewItem.Icon>
                 <ui:SymbolIcon Symbol="Settings24" />
             </ui:NavigationViewItem.Icon>
         </ui:NavigationViewItem>
     </ui:NavigationView.FooterMenuItems>
 </ui:NavigationView>

---

private void sidebarNavigationView_SelectionChanged(NavigationView sender, RoutedEventArgs args)
{
System.Windows.MessageBox.Show("Selection changed ! ");
}

[textGamex]

You need to set the TargetPageType property of NavigationViewItem to properly trigger the SelectionChanged event

[BoyFaceGirl]

You need to set the TargetPageType property of NavigationViewItem to properly trigger the SelectionChanged event

Anyway, this is unreasonable. Why does TargetPageType=null affect the SelectionChanged event of NavigationViewItem?

[Justin1107-good]

Do you have a three-level NavigationViewItem ?