public int IndexOf(
     PublisherElement publisher)
 {
     return BaseIndexOf(publisher);
 }
 public void Remove(
     PublisherElement publisher)
 {
     if (BaseIndexOf(publisher) >= 0) {
     BaseRemove(publisher.Name);
     }
 }
 public void Add(
     PublisherElement publisher)
 {
     this.BaseAdd(publisher);
 }