Hi @lojainahmed,
if I understand your requirement correctly then you have to configure the first field to contain “postback=true” and add a value script to the second field (which is dependent) like in the following example:
<Field displayName="Company Id" dynamic="true" hidden="true" name="companyId" type="string">
<Attributes>
<Map>
<entry key="hidden" value="true"/>
</Map>
</Attributes>
<Script>
<Source><![CDATA[
String _company = null;
_company = form.getField("company").getValue();
<!-- Do some logic here -->
return "xyz";
]]></Source>
</Script>
</Field>
Best regards,
Daniel