using image resizer - want to get the path for objectdatasource parameter?

hi,
I am using image resizer for asp.net which works ok

the image during upload is getting rename using a unique id of type GUID
After I then want to get the full path to the file with the new name and use as parameter in objectdatasource insert as below
but its not working?

         foreach (string fileKey in HttpContext.Current.Request.Files.Keys)         {             HttpPostedFile file = HttpContext.Current.Request.Files[fileKey];             if (file.ContentLength <= 0) continue; //Skip unused file controls.                         ImageResizer.ImageJob i = new ImageResizer.ImageJob ...