I won't waste your time with any introductory drivel -- if you want that, you can read the other post. Let's get right into the code.

Plumtree.Remote.PRC.Search.IntrinsicPortalField.cs:

using System;

using com.plumtree.remote.prc.search.xp;

using com.plumtree.remote.prc.search;
namespace Plumtree.Remote.PRC.Search

{

 public class IntrinsicPortalField : Field

 {

  private IntrinsicPortalField(IntrinsicXPPortalField xpField) : base(xpField)

  {

   ;

  }
  public static readonly IntrinsicPortalField EMAIL_ADDRESS = new

   IntrinsicPortalField(IntrinsicXPPortalField.forID(26));

 }

}

com.plumtree.remote.prc.search.xp.IntrinsicXPPortalField.cs:

using System;
namespace com.plumtree.remote.prc.search.xp

{

 public class IntrinsicXPPortalField : XPField

 {

  private IntrinsicXPPortalField(String name, bool isSearchable, bool isRetrievable) :

   base(name, isSearchable, isRetrievable)

  {

   ;

  }
  public static IntrinsicXPPortalField forID(int propertyId)

  {

   return new IntrinsicXPPortalField("ptportal.propertyid." + propertyId, true, true);

  }

 }

}

Enjoy!