Does Silverlight cache web service calls?

Question

Here's the problemo:

My Silverlight application is calling a HTTP web service, using WebClient, called getCampaigns which returns a JSON array of data for Campaign objects. The user can then interact with the requested objects, modifying them, removing them, etc. When the user removes a campaign, Silverlight calls another web service, which flags the object in the database so it won't be returned in the future, and then refreshes the page by calling getCampaigns. The problem is the removed campaign still shows up.

If I check the database, the campaign truly has been disabled, and if I close the Silverlight application and restart it, the campaign doesn't appear. It appears that Silverlight is caching the web service call. But each time the call is made a new WebClient object is instantiated.

Any ideas?

Answer 1

There is no cache of web service calls. You probably have a problem in your refresh method.

Answer 2

I uploaded the application to my server, the same server where the web services are held, and everything is working fine. If I have time (which I probably won't), I might dig around and try and see what the difference was, but for now I'm just going to accept that it works.

Answer 3

https://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=340931&wa=wsignin1.0

Two workarounds are given. I'm appending a Guid to my Url, so each web service call is completed using a unique Url.