public class XmlProcessingInstruction : XmlLinkedNode {
// Protected Constructors
   protected internal XmlProcessingInstruction( string target, string data, XmlDocument doc);  
// Public Instance Properties
   public string Data{set; get; } 
   public override string InnerText{set; get; }                       // overrides XmlNode
   public override string LocalName{get; }                            // overrides XmlNode
   public override string Name{get; }                                 // overrides XmlNode
   public override XmlNodeType NodeType{get; }                        // overrides XmlNode
   public string Target{get; } 
   public override string Value{set; get; }                           // overrides XmlNode
// Public Instance Methods
   public override XmlNode CloneNode( bool deep);                     // overrides XmlNode
   public override void WriteContentTo( XmlWriter w);                 // overrides XmlNode
   public override void WriteTo( XmlWriter w);                        // overrides XmlNode
}