title: FileUpload.PostedFile always null inside UpdatePanel
body: <p>I have a FileUpload control inside an UpdatePanel. I have successfully registered the upload button with the scriptmanager to do a full postback. The only issue I have is that FileUpload.HasFile is always returning null.
  Note: When I move the FileUpload control outside of the updatepanel everything works file. Is there a solution or workaround for this.</p>
  
  <p>Thanks.</p>