How to issue iCommand Commands in code?

Question

I understand how to bind iCommand commands to UI elements.
I would like to know how to issue Commands in C# code.
I need to do this so that I can issue commands in the Click event code behind for UI elements that don't support commands, such as App Bar Buttons.
Any examples would be greatly appreciated.
Thanks!

Answer 1

Your example would work, except that I don't have a button on my page to reference. I want the code behind for an AppBarButton, which does not support the "Command" parameter, to be able to raise/issue/fire (proper term?) a command.
I could put a hidden button on the page and then reference it's Command, but that just seems like a really ugly way to do it.
Any suggestions?
Hi Pfredd,
>>I want the code behind for an AppBarButton, which does not support the "Command" parameter, to be able to raise/issue/fire (proper term?) a command.
Generally, this will break MVVM pattern if you want to invoke Command from code behind, I would suggest you customizing AppBarButton like this and set Command binding:
<AppBarButton x:Name="WeekButton" Label="SomeText" >
<StackPanel Orientation="Horizontal" HorizontalAlignment="Right">
<Button Command="{Binding OkCommand}" >
</Button>
</StackPanel>
</AppBarButton>
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