Remove a page from Navigation Stack

Question

I have this application schema :

[List Page] -> [Detail Page] -> [ShareOnFacebook Page]
                     ^__________________|

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Answer 1

Have a look at simple library i wrote for such purposes: http://navcoerce.codeplex.com/

var fluent = new FluentNavigation(RootFrame);                          

fluent.WhenNavigatedTo()                                     
      .ThenTo()                                             
      .ThenToAnyPage()                                                 
      .RemoveEntriesFromBackStack(1);                                  

fluent.WhenNavigatedTo()                                     
      .ThenTo()                                             
      .ThenTo()                                          
      .ThenTo()                                           
      .RemoveEntriesFromBackStackTill();                     

fluent.WhenNavigatedTo()                                     
      .ThenTo()                                            
      .ThenTo()                                          
      .ThenOptionallyTo()                          
      .ThenToAnyPage()                                                 
      .RemoveEntriesFromBackStackTill();                     

fluent.WhenNavigatingTo()                                 
      .RedirectTo();                                        

fluent.WhenNavigatingTo()                                 
      .If(() => false)                                                 
      .RedirectWithReturnUri("ReturnUri");