void setupRx()
{
if (rxObjectsSetup)
{
return;
}
NavigateBack = new ReactiveCommand(
NavigationStack.CollectionCountChanged.StartWith(_NavigationStack.Count).Select(x => x > 1));
NavigateBack.Subscribe(_ =>
NavigationStack.RemoveAt(NavigationStack.Count - 1));
Navigate = new NavigationCommand();
Navigate.Subscribe(x => {
var vm = x as IRoutableViewModel;
if (vm == null)
{
throw new Exception("Navigate must be called on an IRoutableViewModel");
}
NavigationStack.Add(vm);
});
NavigateAndReset = new NavigationCommand();
NavigateAndReset.Subscribe(x => {
NavigationStack.Clear();
Navigate.Execute(x);
});
rxObjectsSetup = true;
}
public MainWindowViewModel(IRegionManager regionManager)
{
this.RegionManager = regionManager;
NavigationCommand.Subscribe <string>(viewName =>
{
this.RegionManager.RequestNavigate("ContentRegion", viewName);
});
}