Hidden/Shown AsyncFileUpload Control Doesn't Fire Server-Side UploadedComplete Event

Question

I recently came across the AsyncFileUpload control in the latest (3.0.40412) release of the ASP.Net Ajax Control Toolkit. There appears to be an issue when using it in a hidden

Answer 1

First, make sure your tag has the following attribuytes - enctype="multipart/form-data" method="post" Secondly, you have to have the AsyncFileUpload in an invisible DIV within a visible DIV. See these two threads on it.

http://forums.asp.net/t/1489399.aspx

http://forums.asp.net/t/1479689.aspx?PageIndex=2