Method Error 500 and AJAX
Posted On Monday, September 08, 2008 at at Monday, September 08, 2008 by Ben HI'm using the cascading drop down provided by the AJAX control toolkit. I started getting a "[method error 500]" in one of my drop downs a few months ago. At the time I thought it was bad data and after I removed some of the dups all was fine. Well, the problem came back recently and I determined all the data was accurate. So, I began debugging through the problem. After I got some more details from Fiddler and debugging, I was able to find this post that fixed the issue. Kudos to Simon Harriyott.
My work here is done.