How do you switch pages in Xamarin.Forms?

If your project has been set up as a PCL forms project (and very likely as Shared Forms as well but I haven't tried that) there is a class App.cs that looks like this:

public class App
{
    public static Page GetMainPage ()
    {     
        AuditorDB.Model.Extensions.AutoTimestamp = true;
        return new NavigationPage (new LoginPage ());
    }
}

you can modify the GetMainPage method to return a new TabbedPaged or some other page you have defined in the project

From there on you can add commands or event handlers to execute code and do

// to show OtherPage and be able to go back
Navigation.PushAsync(new OtherPage());

// to show AnotherPage and not have a Back button
Navigation.PushModalAsync(new AnotherPage()); 

// to go back one step on the navigation stack
Navigation.PopAsync();

In the App class you can set the MainPage to a Navigation Page and set the root page to your ContentPage:

public App ()
{
    // The root page of your application
    MainPage = new NavigationPage( new FirstContentPage() );
}

Then in your first ContentPage call:

Navigation.PushAsync (new SecondContentPage ());

Xamarin.Forms supports multiple navigation hosts built-in:

• NavigationPage, where the next page slide in,
• TabbedPage, the one you don't like
• CarouselPage, that allows for switching left and right to next/prev pages.

On top of this, all pages also supports PushModalAsync() which just push a new page on top of the existing one.

At the very end, if you want to make sure the user can't get back to the previous page (using a gesture or the back hardware button), you can keep the same Page displayed and replace its Content.

The suggested options of replacing the root page works as well, but you'll have to handle that differently for each platform.