Disabled dropdownbykey is showing up

Question

I have added dropdownbykey form element and binded it controller attribute node. I have put following code to initialize the drop down.
  public void wdDoInit()
    //@@begin wdDoInit()
     String locations[] = new String[]{"Economy","Compact","Intermediate","Full Size","Premium","Luxury","Convertible","Mini Van" };
     IWDNodeInfo csn=wdContext.nodeDropdown().getNodeInfo();
     IWDAttributeInfo cattinfo=csn.getAttribute("location");
     ISimpleTypeModifiable cmstype = cattinfo.getModifiableSimpleType();
     cmstype.setFieldLabel("Cities");
     IModifiableSimpleValueSet cvalueset=cmstype.getSVServices().getModifiableSimpleValueSet();
     for (int i = 0; i < locations.length; i++) {
          cvalueset.put(locations<i>, locations<i>);      
    //@@end
when I am running application, a disabled dropdown box shown up. Can any body tell me how to fix this? or what I have been doing wrong?

Answer 1

Hi,
<b>Check the cardinality of the node bound to this control make it 1..n</b>
The property <b>selectedKey</b> must be bound to a context attribute Key having a simple type like String with a value set.
The selectable items of the drop-down list are the keys of the value set, the displayed texts are the corresponding values. The currently selected item is given by the current value of property selectedKey.
Regards
Ayyapparaj