How do I determine an image loaded successfully from a URI in Silverlight 2.0 (RC0)?

Question

In the following code below:

Image img = new Image();
img.Source = new BitmapImage(new Uri("http://someURL/somefilename.jpg", UriKind.Absolute));

how can I determine if the image successfully loaded (when there's a valid URI)? i.e., The URI is a valid format, but the file may not exist.

Answer 1

Image has an ImageFailed event.

BitmapSource (base for BitmapImage) has an IsDownloading property, as well as DownloadProgress, DownloadCompleted, and DownloadFailed events.

Answer 2

If you run your example code above (with a valid url but invalid image file) you will get an exception thrown:

Error: Sys.InvalidOperationException: ImageError error #4001 in control 'Xaml1': AG_E_NETWORK_ERROR

So if you wrap your code in a try/catch block you can determine if the image loaded property or not.