Question

I have a Windows Phone 7.5/Silverlight app.

I have some code that I duplicate in some sense on most of my pages.
e.g. of Code duplication:

1: OnNavigatedTo – I Stop animations, clear BackStack, add event handlers(same ones on each page), etc.

2: OnNaviateFrom – I Stop animations and set them to null, remove event handlers, stop all sounds, dispose soundffects and instances,etc.

3: OnInitilalizeComponent – I set up my SoundEffects

4: On image click I play SoundEffects

So what would be the best way so I don’t have to replicate the code in all pages?

I was thinking of somekind of base class or page?

Any ideas really appreciated. Thanks.

Answer 1

If you are doing the same thing in each page then a base Page class makes perfect sense.

public class MyPhoneApplicationPage : PhoneApplicationPage
{
    public MyPhoneApplicationPage()
    {
        this.Loaded += OnLoaded;
    }

    protected override void OnNavigatedFrom(System.Windows.Navigation.NavigationEventArgs e)
    {
        base.OnNavigatedFrom(e);
        // Do Stuff
    }

    protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
    {
        base.OnNavigatedTo(e);
        // Do Stuff
    }

    private void OnLoaded(object sender, RoutedEventArgs routedEventArgs)
    {
        //set up my SoundEffects
    }
}