Error when calling webservice from silverlight application?

An error occurred while trying to make a request to URI 'http://localhost:42083/Services/MyService.asmx'. This could be due to attempting to access a service in a cross-domain way without a proper cross-domain policy in place, or a policy that is unsuitable for SOAP services. You may need to contact the owner of the service to publish a cross-domain policy file and to ensure it allows SOAP-related HTTP headers to be sent. This error may also be caused by using internal types in the web serv开发者_开发知识库ice proxy without using the InternalsVisibleToAttribute attribute. Please see the inner exception for more details.

And the most peculiar thing about is that before it worked just fine, but when I changed just a little thing in a stored procedure it throws this exception. That's weird! I'm getting a little more suspect against SOAP services for now. Anybody who has any ideas?

After having read you comment, please make sure you have deployed a cross-domain policy file. Tim has a great blog about it: http://timheuer.com/blog/archive/2008/04/06/silverlight-cross-domain-policy-file-snippet-intellisense.aspx. It is really an essential asset to obtain when starting SL to server communication.

Hope that helps.