internal override string DebuggerDisplayString()
        {
            StringBuilder stringBuilder = new StringBuilder("SrgsRuleRef");

            if (_uri != null)
            {
                stringBuilder.Append(" uri='");
                stringBuilder.Append(_uri.ToString());
                stringBuilder.Append("'");
            }
            else
            {
                stringBuilder.Append(" special='");
                stringBuilder.Append(_type.ToString());
                stringBuilder.Append("'");
            }
            return(stringBuilder.ToString());
        }