How to populate values dynamically in dropdownbykey

Question

Hi All,
My requirement is to populate the dropdown filled in with values( and key) which are coming from the ZBAPI call ie web service model.
How do i achieve this ?
Kindly provide me with some pseudo code.
Reg/Venkat

Answer 1

Hi Venkat,
          You can populate dropdown values from webservice using the following steps. I assume you gave idea about custom controller.
step1:
      Create custom controller.Inside custom controller Bind input value then execute webservice.
step2:
      Now you have value node which is returned from web service. find thr size of value node.  
After execute web service you can find size using the following code. create value node and model node object using the code.
Step3:
<custom controller name>.IRole_ResultNode modelnode=wdContext.nodeRole_Result();
<custom controller name>.IRole_OutputNode valuenode=wdContext.nodeRole_Output();
valuenode.invalidate();
int size=modelnode.size();
Step4:
     After find size using loop fetch values from model node into value node.Asume in this value node contains key and value.
for(int x=0;x<modelnode.size();x++){
<custom controller name>.IRole_ResultElement  modelElement=modelnode.getRole_ResultElementAt(x);
<custom controller name>.IRole_OutputElement valueElement=wdContext.createRole_OutputElement();
valueElement.setId(modelElement.getKey());
valueElement.setText(modelElement.getValue());
valuenode.addElement(valueElement);
step5:
After that bind this value node(Role_Output) into Component controller. Then Bind value node(Role_Output) from component controller into view.
Step6:
Finally bind dropdown UI Element into Role_Output node's attribute(ID).
Kind Regards,
S.Saravanan