How to select a default value in a DropDownByIndex

Question

Hi,
I have a dropdownbyindex in a table. I need to make default selection of an item in the dropdown.
I have prepopulated dropdown from bapi result, "1", "2", "3", "4". I have another bapi result which gives me a selected value "2". I need to default this to the dropdown when my page gets loaded.
1st bapi result  - (model nodes)
_input
_output
_list
attribute (1,2,3,4) (list of elements)
I have a context node created for the table items.
nodeitems
str (2) -element to be defaulted.
I am writing this code:
int lead = 0;
for(int i = 0; i < X.size; i++){
IWDNodeElement elem = wdContext.nodeDataNode().getElementAt(i);
if(X.equalsIgnoreCase("2"))
lead = i;
break;
wdContext.nodeX.setLeadSelection(lead);
For size of X, I am taking
nodeInput.nodeOutput.nodeList.size()
But this gives me size of thelist 0 whereas it is populating the whole list.
Hope I have made it clear.
Please help.
Thanks

Answer 1

Cardinality                Selection              Singleton
_input -      0..n          0..1          true
_output -      0..1          0..1          true
_list -      0..n          0..1          true
nodeItem - 0..n          0..1          true
Thanks