Problem with file control and Update Panel

Hi

I am using file upload control inside the UpdatePanel

But I was not getting the object of fileupload control

then I added following code
ScriptManager.GetCurrent(Page).RegisterPostBackControl(txtSelectVideo);
where txtSelectVideo is the ID of File upload control

But Now I am getting an error

Control with ID 'txtSelectVideo' being registered through RegisterAsyncPostBackControl or RegisterPostBackControl must implement either INamingContainer, IPostBackDataHandler, or IPostBackEventHandler.
KaranGuptaAsked:
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svellutoConnect With a Mentor Commented:
The File Upload Control does not work inside an Update Panel due to Security Reasons.

The AsyncPostback is executed on the Client-Side, and not allowed to access files on the user's system.

Though, with a little bit of searching, I have found this nice blog post, which gives an alternative:

http://geekswithblogs.net/ranganh/archive/2008/04/01/file-upload-in-updatepanel-asp.net-ajax.aspx

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