How do I create a StringWriter with encoding in C#.NET?

Simple, yet effective.

using System;
using System.IO;
using System.Text;
 
public class StringWriterWithEncoding : StringWriter
{
    public StringWriterWithEncoding( StringBuilder builder, Encoding encoding )
        : base( builder )
    {
        _encoding = encoding;
    }
 
    Encoding _encoding;
 
    public override Encoding Encoding
    {
        get { return _encoding; }
    }
}