FileUpload.hasFile is always False

Question

I have a FileUpload control (and it's not inside an UpdatePanel) and its hasFile property is always False.

   <asp:FileUpload ID="certificateUploader" runat="server"/>

Any thought?

Answer 1

You can try to take your button off from the UpdatePanel; As far as I get, UpdatePanels always update when something inside any other update panel updates, so if your button postback, your FileUpload control also postback and lose the file reference.