Unable to load an external image in Silverlight - “ag e network error” exception

问题

I'm using Silverlight 4 and I'm experiencing the following problem: First off, the code:

BitmapImage bitmapImage = new BitmapImage();
        bitmapImage.CreateOptions = BitmapCreateOptions.IgnoreImageCache;
        bitmapImage.DownloadProgress += new EventHandler<DownloadProgressEventArgs>(bitmapImage_DownloadProgress);
        bitmapImage.UriSource = new Uri("http://choteborsky.aspone.cz/Images/Label.png", UriKind.Absolute);
        bitmapImage.ImageFailed += new EventHandler<ExceptionRoutedEventArgs>(bitmapImage_ImageFailed);

The bitmapImage fires the ImageFailed event with the "ag e network exception". I seem to be unable to load any external images, no matter what I do. Is there something special I need to configure or why is it not working? Thanks

回答1:

The server where the image is hosted needs to have a crossdomain.xml file, allowing cross-domain requests. The file should, roughly, look like:

<?xml version="1.0" encoding="utf-8" ?>
<access-policy>
  <cross-domain-access>
    <policy>
      <allow-from http-request-headers="*">
        <domain uri="*" />
      </allow-from>
      <grant-to>
        <resource include-subpaths="true" path="/" />
      </grant-to>
    </policy>
  </cross-domain-access>
</access-policy>

That makes it wide open.

回答2:

Ok, I was able to find a workaround solution. Instead of trying to get the SL client to download the image from the server on which is sitting my ASP.NET app, I use a WCF service to stream the data directly to the SL client where I'm able to reconstruct them into BitmapImage type without any trouble

来源：https://stackoverflow.com/questions/3355070/unable-to-load-an-external-image-in-silverlight-ag-e-network-error-exception

标签

silverlight

bitmapimage