How to serialize a data of type string without using StringWriter as input

I want to serialize a input data of type string, but do not want to use StringWriter and StringReader for for serializing/Deserializing. The reason for this is when a escapse chars are sent as part of the Input string for serializing, it is serialized but some Spl chars are inserted in the xml(eg:"
").I'm getting an XMl error while deserializing this serialized data.

void M1()
{
 string str = 23 + "AC"+(char)1;
 StringWriter sw = new StringWriter();
 XmlSerializer serializer = new XmlSerializer(typeof(String));
 serializer.Serialize(sw, str);
 System.Console.WriteLine("String encoded to XML = \n{开发者_Go百科0} \n", sw.ToString());
 StringReader sr = new StringReader(sw.ToString());
 String s2 = (String)serializer.Deserialize(sr);
 System.Console.WriteLine("String decoded from XML = \n {0}", s2);
}

You can for example encode the string as UTF-8, then encode the data using base-64:

string encoded = Convert.ToBase64String(Encoding.UTF8.GetBytes(theString));

This gives you a string without any special characters.

Deserialising is the reverse:

string theString = Encoding.UTF8.GetString(Convert.FromBase64String(encoded));

How about using XmlWriter to write with and XmlTextReader to read with? Example:

var sb = new StringBuilder();

// set the encoding here: you may need to try different encoding types...
var settings = new XmlWriterSettings{ Encoding = System.Text.Encoding.UTF8 };

using (var writer = XmlWriter.Create(sb, settings))
{
    string str = 23 + "AC"+(char)1;
    XmlSerializer serializer = new XmlSerializer(typeof(String));
    serializer.Serialize(writer, str);
    System.Console.WriteLine("String encoded to XML = \n{0} \n", sw.ToString());

    // more code to handle read the values with XmlTextReader, etc etc etc......    
}