Ejemplo n.º 1
0
        public static object GetDataContext(NavigationContext navContext)
        {
            string id;

            if (navContext != null && navContext.QueryString != null &&
                navContext.QueryString.TryGetValue(ViewModelIdArgumentName, out id))
            {
                return(ViewModelsRegistry.GetById(id));
            }
            return(null);
        }
Ejemplo n.º 2
0
        public void Navigate <T>(T viewModel)
        {
            var page = ViewsMap[viewModel.GetType()];

            var frame = Application.Current.RootVisual as PhoneApplicationFrame;

            if (frame == null)
            {
                throw new InvalidOperationException("Frame is null");
            }

            if (frame.Content is FrameworkElement)
            {
                var dc = ((FrameworkElement)frame.Content).DataContext;
                if (dc != null && dc.Equals(viewModel))
                {
                    return;
                }
            }

            bool isRootPage = RootViewModels.Contains(viewModel.GetType());

            if (isRootPage)
            {
                while (frame.BackStack.Any())
                {
                    var entry = frame.RemoveBackEntry();
                    //TODO: log entry.Source;
                }
            }

            bool navigationResult = frame.Navigate(GetPageUri(page, ViewModelsRegistry.Register(viewModel)));

            if (!navigationResult)
            {
                //TODO: log and do smth
            }
        }