asp:upload postedfile lost during postback

Posted by Neil on Stack Overflow See other posts from Stack Overflow or by Neil
Published on 2010-03-29T19:01:32Z Indexed on 2010/03/29 19:23 UTC
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Filed under:

fileupload

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viewstate

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postback

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ASP.NET

I am using an asp:upload control to upload an image and am using the postedfile property to insert the path to the database. In my form I have a dropdown with autopostback=true where the user can select a topic to populate a checkbox list of categories. During that postback, the postedfile value is being lost and after a little research I have discovered that the posted file value is not maintained in viewstate for security reasons. Has anybody else found out how to get around this?

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