SharePoint 2010, CSOM and External Lists – must use LoadQuery

I was working on some JavaScript code to pull data from an External List that was pointing to a Microsoft CRM 2011 database. The code was being used to populate a jQuery autocomplete like this post. In that post you can see on line 10, I use the “load” method. This worked, but if I started a new query before the previous one ended, a javascript error was thrown. I am sorry I don’t recall the error – I am blogging this a month or so after I figured it out.

It took me a while, but I found one reference to figure out the issue. It is on page 143 of Scott Hillier’s book “Professional Business Connectivity Services in SharePoint 2010” (I found it via the google query “loadquery external list”)

The work around was that you have to use LoadQuery with External lists, Load is not supported. Not sure where this is documented, but it took me quite a while to figure that one out.

Hope that helps some one?


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