System.Extensions.ConvertFromYesNo C# (CSharp) Method

        public static bool ConvertFromYesNo(this string text)
        {
            bool ret = false;

            if (text == null)
                throw new ArgumentException();

            if (text.Equals("YES", StringComparison.CurrentCultureIgnoreCase))
                ret = true;
            else if (text.Equals("NO", StringComparison.CurrentCultureIgnoreCase))
                ret = false;
            else
                throw new ArgumentException();


            return ret;
        }