private bool FilterTicketComment(TicketComment entity)
 {
     return ((entity.TicketId == this.TicketId) 
                 && (entity.CommentId == this.CommentId));
 }
 private void DetachTicketComments(TicketComment entity)
 {
     entity.Ticket = null;
 }
 private bool FilterTicketComments(TicketComment entity)
 {
     return (entity.TicketId == this.TicketId);
 }
 private void AttachTicketComments(TicketComment entity)
 {
     entity.Ticket = this;
 }