I'm encountering a problem when I place an APSxUploadControl in an AJAX UpdatePanel. Basically, I'm presented with the following Javascript error:

Error: [Exception... "'Sys.WebForms.PageRequestManagerServerErrorException: Sys.WebForms.PageRequestManagerServerErrorException: Object reference not set to an instance of an object.' when calling method: [nsIDOMEventListener::handleEvent]"  nsresult: "0x8057001c (NS_ERROR_XPC_JS_THREW_JS_OBJECT)"  location: "<unknown>"  data: no]

What steps do I need to take to get this working?

Has anyone managed to get an upload control to sit happily within an UpdatePanel?

Leigh, you dont need to put the ASPxUploadControl inside an updatepanel as ths UploadControl supports callbacks which will upload the file without a postback.

Thanks Chris.

Unfortunately, the UploadControl is in the middle of a form that needs to be in an UpdatePanel.

Hi!

We've already fixed this problem. The bug fix will be available in the next major release (v2008 vol 3).