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Setting and retrieving hidden value from JComboBox

Posted on 2003-03-14
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Last Modified: 2008-03-17
hey there,

i was wondering, can I set a hidden value on an item in a JComboBox (like an ID or so) so that when an item is selected, the hidden value is returned instead of the item itself.

example:

i get ID, name and first name out of a DB

in a loop, i do a box.additem("name" + " " + first_name);
but i want to set the corresponding ID with that item, somewhere hidden...

like in html it would be <option value="id">name + first_name</option>

Can anyone help, thank you !
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Question by:msouphy
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2 Comments
 
LVL 86

Accepted Solution

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CEHJ earned 300 total points
ID: 8135298
An item in a JComboBox is an Object. What you *see* in the combo box is only partially connected to what is *in* it, and what you see is dertermined by toString of the object in question. The relationship is similar to model-view. All you need to do is this:

public class SecretEntry {
  String visibleField;
  String hiddenField;
 
  // other methods
 
  public String toString() {
    return visibleField;
  }
}
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LVL 86

Expert Comment

by:CEHJ
ID: 8135308
and by extension, to get the value of your hidden field

SecretEntry se = (SecretEntry)comboBox.getSelectedItem();
System.out.println(se.getHiddenField());
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