Dropdown by Index: Initial lead selection

Question

All,
<b>This is my requirement:</b> I have a dropdown (By Index), By default I wanted to have blank as selected value.
If user selected any of the value, it has to be seleted value.
<b>What i did so far is:</b>
I set selection of node to 0..1, cardinality as 0;n and set initializeLeadSelection to false
<b>The problem:</b> I have is, by default im getting the blank space in dropdown, no issue here.
but when user selects any value from drop down, it always showing the space. not the selected value.
Thanks ...
BM

Answer 1

You might try this:
Create a context value node "Items", cardinality 0:N, selection 0:1 with a supply function "supplyItems".
In the supply function, create the node elements that should appear in the dropdown-list.
void supplyItems(IItemsNode node, ...)
  for (int i = 0; i < wdContext.nodeR().size(); ++i)
    IRElement e = wdContext.nodeR().getRElementAt(i);
    IItemsElement item = node.createItemsElement();
    node.addElement(item);
    item.setRD(e.getRid());
    item.setOrg(getOrgUnitName(e.getOrgunitid()));
  node.setLeadSelection(IWDNode.NO_SELECTION);
At the event handler that calls the BAPI and changes the model node content, just call wdContext.nodeItems().invalidate() to trigger the supply function and will the items with the updated values from the model.
(You might also give your context nodes and attributes more useful names)
Armin