Adding a ApplicationBarIconButton from Application.Resources in XAML - windows-phone-7.1

Question

I have a ApplicationBarIconButton which I use repeatedly on multiple pages.
I want to be able to define the Click action in my Application C# file.
I have
<Application.Resources>
<shell:ApplicationBarIconButton
x:Key="AddLocationAppBarIconBut"
IconUri="/icons/appbar.add.rest.png"
Text="location"
Click="Add_Location_Event" />
in my App.xaml file and I want to load it into another page I have under
<phone:PhoneApplicationPage.ApplicationBar>
How do I go about this exactly?
Can I bind a click event to an event in my Application cs file?

Answer 1

Unfortunately, you can't!
In full WPF framework, you'd be able to do something like this:
<phone:PhoneApplicationPage.ApplicationBar>
<shell:ApplicationBar>
<shell:ApplicationBar.Buttons>
<StaticResource ResourceKey="AddLocationAppBarIconBut" />
</shell:ApplicationBar.Buttons>
</shell:ApplicationBar>
</phone:PhoneApplicationPage.ApplicationBar>
The trick here is in the usage of StaticResource, but Silverlight doesn't have a backing class representation like that; you can only use the Markup Extension as {StaticResource AddLocationAppBarIconBut}, but this won't help you here!
What you can is define the full ApplicationBar object as a resource and then just call it on the page like this:
<phone:PhoneApplicationPage ApplicationBar="{StaticResource ApplicationBarResource}">
<!-- remaining code -->
<phone:PhoneApplicationPage />