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Thursday, July 03, 2014

Windows Phone 8 - Global App Bar across all your pages


If you want to have a same App Bar across all the pages of your Windows Phone 8 app, it could be achieved by placing the code in the app level file App.xaml similar to Master Page or Global.asax.

Here are the steps to display the global app bar -

  • Add the app bar markup to the App.xaml file.

         App.xaml

          <shell:ApplicationBar x:Key="RootAppBar" IsVisible="True" IsMenuEnabled="True">
            <shell:ApplicationBar.MenuItems>
                <shell:ApplicationBarMenuItem Text="Your Text" Click="YourText_Click">
            </shell:ApplicationBarMenuItem>
           </shell:ApplicationBar.MenuItems>
          </shell:ApplicationBar>

  • If the menu item has a click event, then add the click event code to App.xaml.cs file. 
           void YourText_Click(object sender, EventArgs e)
           {
                // Write your click event code here.
           }

  • Finally, add reference to the app bar in the pages that needed an app bar. It can be done by adding ApplicationBar property and pointing it to a static resource in the global page markup. For e.g. if you would like to add a app bar on the main page, see the sample below,
        MainPage.xaml

          <phone:PhoneApplicationPage 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             mc:Ignorable="d"
             FontFamily="{StaticResource PhoneFontFamilyNormal}"
             FontSize="{StaticResource PhoneFontSizeNormal}"
             Foreground="{StaticResource PhoneForegroundBrush}"
            SupportedOrientations="Portrait" Orientation="Portrait"
            shell:SystemTray.IsVisible="True"
            ApplicationBar="{StaticResource RootAppBar}">


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