public PullRequestsView()
        {
            this.InitializeComponent();
            ViewModel = new PullRequestsViewmodel();

            this.DataContext = ViewModel;

            NavigationCacheMode = NavigationCacheMode.Required;
        }
        public PullRequestsView()
        {
            InitializeComponent();
            ViewModel = new PullRequestsViewmodel();

            DataContext = ViewModel;

            Unloaded += PullRequestsView_Unloaded;

            NavigationCacheMode = NavigationCacheMode.Required;
        }