FoxTube/FoxTube.Core/Models/PageView.cs

using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Navigation;

namespace FoxTube.Core.Models
{
    public class PageView : Page
    {
        public string Header
        {
            get => _header;
            set
            {
                _header = value;
                UpdateTitle();
            }
        }
        string _header;
        public object Parameter { get; private set; }

        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            base.OnNavigatedTo(e);
            Parameter = e.Parameter;
        }

        public virtual void UpdateTitle() { }
    }
}