Adobe Form Enumerated Dropdowns values not populated

Question

Hi All,
have a scenario where, I have to fill in a dropdown dynamically when I click a button. I get the values from a function module. I have done this using Isimpletypemodifiablestep. It worked.I have the form too. But when I try to re-implement the same for a new requirement, its working only if I give the values during initialisation .
Why is this inconsistent?
Can we modify Simple types only during initialization? I have tried to add the values to the drop-down in controller and map the attribute to view. Even that didn't work.
I'm
Am using Adobe Live cycle designer 7.1 and NWDS 7.1
SAP 2004s SP15
Thanks,
Vasu

Answer 1

Hi,
       Try with this code...
     int iCommodityCode = wdContext.nodeIt_Commodity_Output().size();
     String commText = null;
     String commCode = null;
     IWDAttributeInfo CommodityAttinfo = wdContext.nodeCommodityNode().getNodeInfo().getAttribute("CommodityCode");
     if (CommodityAttinfo != null) {
          IModifiableSimpleValueSet commValSet = CommodityAttinfo.getModifiableSimpleType().getSVServices().getModifiableSimpleValueSet();
          commValSet.clear();
          commValSet.put(" ", "Please select one");
          for (int i = 0; i < iCommodityCode; i++) {
               commCode = String.valueOf(wdContext.nodeIt_Commodity_Output().getIt_Commodity_OutputElementAt(i).getCommodity());
               commText = String.valueOf(wdContext.nodeIt_Commodity_Output().getIt_Commodity_OutputElementAt(i).getComm_Text());
                              commValSet.put(commCode, commText);
          wdContext.currentCommodityNodeElement().setCommodityCode(" ");
You have to execute the RFC in doInit of the View and use this code in the click event of your button.
If it still doesn't work it must be the problem with webdynpro lifecycle methods.... The context is available only after certain lifecycle methods are called.. i.e. wdDoPostProcessing() method of Component Controller.  Check if you are trying to access the context before the Component Controller is not initiated completely.
Let me know if you need any further help....
Regards
Ramesh.