I have a view, and there is a navigation issue within a sub-area of the view

[yezideqff]

I have a parent view where there is a subregion. I navigate to the parent view through a button, and when I leave the view, the OnNavigatedFrom method is triggered normally. However, the subregion does not trigger OnNavigatedFrom. I would like to know if there is any way to make the lifecycle of the subregion consistent with the parent view.

This is my current code.

<ContentControl Grid.Column="1" Margin="5" DockPanel.Dock="Left"
        prism:RegionManager.RegionName="UploadMaterialRegion"/>

public void OnNavigatedTo(NavigationContext navigationContext)
{
    _regionManager.RequestNavigate("UploadMaterialRegion", "TruckListView");
}

public void OnNavigatedFrom(NavigationContext navigationContext)
{if (_regionManager.Regions.ContainsRegionWithName("UploadMaterialRegion"))
{
    var region = _regionManager.Regions["UploadMaterialRegion"];

    if (region != null && region.Views.Any())
    {
        foreach(var view in region.Views)
        {
            // 通过 DataContext 获取 ViewModel
            if (view is FrameworkElement frameworkElement &&
                frameworkElement.DataContext is INavigationAware navigationAware)
            {
                navigationAware.OnNavigatedFrom(navigationContext);
            }
        }
        region.RemoveAll();
    }
}
}

I achieved it manually by triggering remove now, but I think it's not very reasonable or elegant. Is there a more elegant solution?