AjaxControlToolkit.Twitter.ControlPropertiesValid C# (CSharp) Метод

        void ControlPropertiesValid()
        {
            switch (Mode) {
                case TwitterMode.Profile:
                    if (String.IsNullOrEmpty(ScreenName))
                        throw new HttpException("ScreenName must have a value");
                    break;
                case TwitterMode.Search:
                    if (String.IsNullOrEmpty(Search))
                        throw new HttpException("Search must have a value");
                    break;
            }
        }