Question about changes in currentRow

Question

Dear Community,
In Creator 2004Q4 data tables you can use the "currentRow" in value binding expressions as currentRow['column']. Now with Creator 2, one must use currentRow.value['column']. I would like to know what else has changed about this. Can any of you explain or point me to the appropiate tutorial/article about the currentRow concept?
Thank you in advance.
Antonio.

Answer 1

As far as I can recall, nothing besides the notation
has changed. Under the covers, currentRow is a
temporary request attribute used when iterating the
rows of a table. As such, it can be used in binding
expressions. We changed the notation when we
introduced data providers. The new notation ensures
when evaluating an expression that what you want is
the value for the current row and the specified field
key. (To get the value, the data provider's getValue
method will be called.)Thank you for your answer. I have a more specific question:
I'm using arrays of DTO (Data Transport Objects) with Tables. Everything wasf fine until I've had to deal with a DTO with a nested class, ie:
public class MyHelperDTO {
  private String name;
  public String getName() {
    return name;
  public void setName(String name) {
    this.name = name;
public class MyDTO {
  private Long id;
  public Long getId() {
    return id;
  public void setId(Long id) {
    this.id = id;
  private MyHelperDTO helpDTO;
  public MyHelperDTO getHelpDTO() {
    return this.helpDTO;
  public void setHelpDTO(MyHelperDTO helpDTO) {
     this.helpDTO = helpDTO;
}It is possible to access the properties of the inner DTO from a currentRow, ie. currentRow.value['helpDTO'].value['name']? I've actually solved in another way, but I'm still curious about it.
Thank you in advance.
Antonio.