make slide show wp7 - windows-phone-7

Question

I have to do a slide show off images stored in my isolated storage.. but i am beginner in windows phone and i have some dificulties.. i already know how to present the images, or show the images in the screen.. but i want to present the images 2 seconds each one.. theres some funcionalty to define the time to reproduce? Any example?
IsolatedStorageFileStream stream = new IsolatedStorageFileStream(name_image, FileMode.Open, myIsolatedStorage);
var image = new BitmapImage();
image.SetSource(stream);
image1.Source = image;
This is how i open the image. I have a foreach with 5 name of images then i open each one.. but i want to see the images 2 seconds..

Answer 1

You could make the current thread sleep for 2 seconds:
System.Threading.Thread.Sleep(2000);
As the last sentence in the foreach body. It is not very neat, but it will do the job.

Answer 2

A better way is to use Reactive Extension.
First take a look at my answer in this post. It tells you what dlls you will need as well as some useful links.
Basically you need to store you images in a collection and then use Rx (GenerateWithTime) to create a observable sequence with time dimension based on the collection. Finally you call a method to add one image and subscribe it to the observable sequence.
Here is one working example,
private void MainPage_Loaded(object sender, RoutedEventArgs e)
{
// create a collection to store your 5 images
var images = new List<Image>
{
new Image() { Source = new BitmapImage(new Uri("/ApplicationIcon.png", UriKind.Relative)), Width = 120, Height = 120 },
new Image() { Source = new BitmapImage(new Uri("/ApplicationIcon.png", UriKind.Relative)), Width = 120, Height = 120 },
new Image() { Source = new BitmapImage(new Uri("/ApplicationIcon.png", UriKind.Relative)), Width = 120, Height = 120 },
new Image() { Source = new BitmapImage(new Uri("/ApplicationIcon.png", UriKind.Relative)), Width = 120, Height = 120 },
new Image() { Source = new BitmapImage(new Uri("/ApplicationIcon.png", UriKind.Relative)), Width = 120, Height = 120 }
};
// create a time dimension (2 seconds) to the generated sequence
IObservable<Image> getImages = Observable.GenerateWithTime(0, i => i <= images.Count - 1, i => images[i], _ => TimeSpan.FromSeconds(2), i => ++i);
// subscribe the DisplayOneImage handler to the sequence
getImages.ObserveOnDispatcher().Subscribe(DisplayOneImage);
}
private void DisplayOneImage(Image image)
{
// MyItems is an ItemsControl on the UI
this.MyItems.Items.Add(image);
}
Hope this helps. :)