BookExamle.cs

//A book example
public string GetSomethingFromDBAndFormat(Guid id){
  //Get item from DB
  var obj = Session.Get<Something>(id);
  var formatString = "";

  //check if it is null
  if(obj!=null) {
    //add the name to return string
    formatString += string.Format("Name: {0}",obj.Name);
    //if it has children append names
    if(obj.Children!=null && obj.Children.Count()>0) {
      //loop over all children add append name
      foreach(var child in obj.Children) {
        //append child names if they aren't empty
        if(!string.IsNullOrEmpty(child.Name)) {
          //Add child format string
	  formatString += string.Format(" Child: Name: {0} ",child.Name);
        }
      }
    }
  }
  return formatString.Trim();
}