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xamarin.forms - Xamarin Forms - Getting Rid of Back Button In Nav Bar

Lets say the first page in the app is the login page and then it takes me to do the main menu screen, is there a way to get rid of the back button in the main menu navigation bar, like get rid of the login page stack?

thank you

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In Xamarin.Forms 1.3 and greater you can use

NavigationPage.SetHasBackButton(this, false);

In Xaml you can add:

<ContentPage ....NameSpaces etc....
    NavigationPage.HasBackButton="False"
    Title="MyPage">
</ContentPage>

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