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windows-phone-7application-bar

ApplicationBar is always NULL

I have the following XAML code:

<phone:PhoneApplicationPage.ApplicationBar>
    <shell:ApplicationBar IsVisible="True" IsMenuEnabled="False" x:Name="PageBar">
        <shell:ApplicationBarIconButton IconUri="/Assets/Icons/appbar.questionmark.rest.png" Text="Help" x:Name="HelpIcon" Click="HelpIcon_Click" />
        <shell:ApplicationBar.MenuItems>
            <shell:ApplicationBarMenuItem Text="Help" x:Name="HelpItem" Click="HelpIcon_Click" />
            <shell:ApplicationBarMenuItem Text="About" x:Name="AboutItem" Click="AboutItem_Click" />
        </shell:ApplicationBar.MenuItems>
    </shell:ApplicationBar>
</phone:PhoneApplicationPage.ApplicationBar>

But inside C# code is always null.

Do you know why?

Solution

  • I found this worked for me when I wanted to change the visiblity: 

    (ApplicationBar as ApplicationBar).IsVisible = true;

    I got that answer from Matthew