Crearing "Page" property

I am setting the “Page” property of a PageBrowser depending on the active Logitech activity, TV.xaml, Move.xaml or Musik.xaml.

But when I stop the activity (so NO activity is active) I want to “clear” the page property. I tried to do this via a Setter by leaving the Value black but this does NOT remove the page.

Any idea what I am doing wrong?

There are multiple solutions: you could create a page for “NO activity active” and set that page accordingly or you could set the isVisible property for the page browser to false.