public string UploadImageAvater()
        {
            string output = "";

            try
            {
                if (HttpContext.Current.Request.Files.AllKeys.Any())
                {
                    // Get the uploaded image from the Files collection
                    var httpPostedFile = HttpContext.Current.Request.Files["UploadedImage"];
                    output = FileOperation.BrowseFile(httpPostedFile, "Avater");
                }
                return(output);
            }
            catch (Exception ex)
            {
                throw new HttpResponseException(Request.CreateErrorResponse(HttpStatusCode.ExpectationFailed, ex.Message));
            }
        }