Modern UI how to go to another page from another link

Question

I am currently using Modern UI from CodePlex. It is great and easy to use but there are some classes and events that I am not familiar with. Example: I have two GroupLinks n

Answer 1

You are mixing "page" navigation with "tab" navigation inside the ModernTab control.

If you call NavigationCommands.GoToPage.Execute inside a ModernTab control you are changing the current "tab", not the current "page".

To change the top level page you can use:

IInputElement target = NavigationHelper.FindFrame("_top", this);
NavigationCommands.GoToPage.Execute("/Pages/BasicPage1.xaml", target);

If the new page is another ModernTab and you want to select a different tab then the default one, then you have to put in place some extra code. In example you could pass parameters to the new page. Se this SO answer.