Drop-down values - get only VALUE, not including its description!

Question

Hello
I am developing a VISITOR info adobe interactive form from webdynpro ABAP.
I have created the context with referring a DDICs custom structure (at this moment there is no child nodes), i put some drop-down (DD) fields on the form and binded with context's attribute. And am populating this drop-down attribute with list values, as below,
    wa_element-text  = wa_DD_entry-zalue.
    wa_element-value = wa_DD_entry-z_value_description.
    APPEND wa_element TO it_elements.
       CALL METHOD node_info->set_attribute_value_set
        EXPORTING
          name      =  'COUNTRY'
          value_set = it_elements.
When user drops-down the list for this COUNTRY srop-down field, the entries are cisible like below (with VALUE and VALUE_DECCRIPTION),
US - USA
CA - Canada
FR - France
They are coming into the form okay, but, when user selects any entry, then, as a WHOLE its populating into the drop-down field! say, for example, if user selects FR, the drop-down field is populating with FR - France!!
But, i want just 'FR' should be populated in the field, not including its description! like our SEARCH HELPS in SAP
Pls. let me know how can i get it?
Thank you.

Answer 1

Tom:
It's possible, but complicated. You need to look into the field definition where we store the listbox contents. Then you can correlate the display item from the bound item. I've done this before in another context. I've appended the script I used.
John Brinkman
http://blogs.adobe.com/formfeed
function getDisplayValue(vField)
var vBoundItems = saveItems(vField);
var vDisplayItems = dispItems(vField);
if (vBoundItems == null || vDisplayItems == null)
return vField.rawValue;
for (var i=0; i<vBoundItems.length; i++)
if (vBoundItems.item(i).value == A.rawValue)
return vDisplayItems.item(i).value;
return "";
* saveItems(vField)
* Get the list of items that are bound to the data
* @param vField -- the list field
function saveItems(vField)
for (var i=0; i<vField.nodes.length; i++)
var vChild = vField.nodes.item(i);
if (vChild.className == "items" && vChild.save == "1")
return vChild.nodes;
return null;
* dispItems(vField)
* Get the list of display items
* @param vField -- the list field
function dispItems(vField)
<items>
<text>aaa</text>
</items>
<items save="1" presence="hidden">
<text>111</text>
</items>
for (var i=0; i<vField.nodes.length; i++)
var vChild = vField.nodes.item(i);
if (vChild.className == "items" && vChild.save != "1")
return vChild.nodes;
return null;