Retrieving a Button or Menu Item at Runtime

Although the built-in application bar allows you to assign names to buttons and menu items in XAML using the x:Name attribute, the CLR runs into trouble resolving items by name at runtime. Consider the following example:

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<phoneNavigation:PhoneApplicationPage.ApplicationBar>    <shell:ApplicationBar>        <shell:ApplicationBar.Buttons>            <shell:ApplicationBarIconButton                IconUri="/Images/Play.png"                Click="OnPlayButtonClick" />            <shell:ApplicationBarIconButton                x:Name="PauseButton"                IconUri="/Images/Pause.png"                Click="OnPlayButtonClick"                IsEnabled="True" />        </shell ...

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