public class XPathException : SystemException {
// Public Constructors
   public method XPathException(string message, 
        Exception innerException);  
// Protected Constructors
   protected method XPathException(
        System.Runtime.Serialization.SerializationInfo info, 
        System.Runtime.Serialization.StreamingContext context);  
// Public Instance Properties
   public override field string Message{get; }                   // overrides Exception
// Public Instance Methods
   public override method void GetObjectData(                   // overrides Exception
        System.Runtime.Serialization.SerializationInfo info, 
        System.Runtime.Serialization.StreamingContext context);  
}