XML, C# - Parse To XML Example

  internal static class ParseHelpers
    {
        private static JavaScriptSerializer json;
        private static JavaScriptSerializer Json { get { return json ?? (json = new JavaScriptSerializer()); } }

        public static Stream ToStream(this string @this)
        {
            var stream = new MemoryStream();
            var writer = new StreamWriter(stream);
            writer.Write(@this);
            writer.Flush();
            stream.Position = 0;
            return stream;
        }


        public static T ParseXml<T>(this string @this) where T : class
        {
            var reader = XmlReader.Create(@this.Trim().ToStream(), new XmlReaderSettings() { ConformanceLevel = ConformanceLevel.Document });
            return new XmlSerializer(typeof(T)).Deserialize(reader) as T;
        }

        public static T ParseJson<T>(this string @this) where T : class
        {
            return Json.Deserialize<T>(@this.Trim());
        }

        public static string ToOnlyAlphaNumericInput(this string input)
        {
            if (input == null)
            {
                return null;
            }
            return Regex.Replace(input, @"[^\w]", string.Empty);
        }
        public static string ToOnlyNormalTextInput(this string input)
        {
            if (input == null)
            {
                return null;
            }
            return Regex.Replace(input, @"[^\w\.@!? ,/:+()'´-]", string.Empty);
        }
    }