I have solved the problem and it turns out that a asmx web service can be used as a data source and can in fact return JSON as the result of a GET request.
If anyone else stumbles across this with the same problem, feel free to post a comment and I will try and help. -- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/google-visualization-api. To view this discussion on the web visit https://groups.google.com/d/msgid/google-visualization-api/5770f45c-281d-444f-86fd-7bd09450f646%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
