public abstract class XmlCharacterData : XmlLinkedNode {
// Protected Constructors
   protected internal method XmlCharacterData(string data, 
        XmlDocument doc);  
// Public Instance Properties
   public virtual field string Data{set; get; } 
   public override field string InnerText{set; get; }            // overrides XmlNode
   public virtual field int Length{get; } 
   public override field string Value{set; get; }                // overrides XmlNode
// Public Instance Methods
   public virtual method void AppendData(string strData);  
   public virtual method void DeleteData(int offset, 
        int count);  
   public virtual method void InsertData(int offset, 
        string strData);  
   public virtual method void ReplaceData(int offset, 
        int count, string strData);  
   public virtual method string Substring(int offset, 
        int count);  
}