Hide value in List

[Pelle]

How can I store a value and a hidden id (or something) for each row in a List
(java.awt)? I want to be able to click the list and use the hidden value,
pretty much like you use the itemData property on a listbox in Visual Basic.
Or can this be done easily with another object ?

[Brent Worden]

javax.swing.JList is much better than java.awt.List for doing what you want.

Any object, not just strings, can be added to a JList. The objects you add
can house the id as well as the display text for each of your list items

Simple example:
public class MyListItem
{
private int id;
private String text;

public MyListItem(int id, String text)
{
super();
this.id = id;
this.text = text;
}

public int getId()
{
return id;
}

/**
* displayed in list
*/
public String toString()
{
return text;
}
}

// creating the JList with MyListItem objects
javax.swing.DefaultListModel model = new javax.swing.DefaultModel();
model.add(new MyListItem(1, "Help"));
model.add(new MyListItem(2, "Me"));

javax.swing.JList list = new javax.swing.JList(model);

// accessing the selected item's id
MyListItem item = (MyListItem)list.getSelectedItem();
int id = item.getId();

HTH,

Brent Worden
http://www.Brent.Worden.org/

"Pelle" <pehen@wmdata.com> wrote in message news:39ff00fb$1@news.devx.com...
>
> How can I store a value and a hidden id (or something) for each row in a
List
> (java.awt)? I want to be able to click the list and use the hidden value,
> pretty much like you use the itemData property on a listbox in Visual
Basic.
> Or can this be done easily with another object ?
>