[Echo-list] FW: SelectField

[Kelleher, M. <Mic...@Ni...>]

Here is another fact I discovered about the SelectField behavior:
 
SelectFields without a ListCellRenderer behave properly.  SelectFields with
ListCellRenderers do not behave properly.
 
 
-----Original Message-----
From: Kelleher, Michael 
Sent: Monday, December 29, 2003 3:03 PM
To: Echo List (E-mail)
Subject: SelectField


After creating a new instance of a SelectField and populating its
DefaultSelectFieldModel like thus:
 
    public void add(SelectField sf, java.util.List list) {
        if (sf == null) {
            return;
        }
        int              iSize = (list == null ? -1 : list.size());
        SelectFieldModel        sfm  = sf.getModel();
        DefaultSelectFieldModel dsfm = (DefaultSelectFieldModel) sfm;
        for (int i=0; i<iSize; i++) {
            dsfm.add(list.get(i));
        }
    }
 
 
The component will ALWAYS reset its SelectedItemIndex to 0.  This happens
regardless of any Listeners that may or may not be added to it.
 
For example, in one screen I do not set any Listeners on the SelectField.  I
then populate the SelectField using the above method, and then say I select
Index 3.  Then I click on a CheckBox that has a listener attached to it.
This causes the screen to refresh itself, and my SelectField's Index is
reset to Index 0.
 
I can however, "trap" the Selected item by attaching a ItemListener.  After
the screen refreshing itself, and i do a getSelectedItem or Index, the
Selected Item/Index is the one at Index 0.
 
I would post more code, but there really isn't any other than when I
instantiate the SelectField.
 
  +---------------------------------+
  |       Michael J. Kelleher       |
  | Application Technical Specialist|
  |     Nielsen Media Research      |
  +---------------------------------+