string  strFileName  =  Request[ " FileName " ];
             string  strPath  =  Server.MapPath( @" WorkItemXml " )  +   " / " ;
            Response.ContentType  =   " image/jpeg " ;
            Response.AddHeader( " Content-Disposition " ,  " attachment;FileName= "   +  HttpUtility.UrlEncode(strFileName, Response.HeaderEncoding));
            Response.TransmitFile(Server.MapPath( @" images/ "   +  strFileName));
            Response.End();