How to populate ADF Faces Drop Down without Errors?

Question

Hi,
I have a drop down in ADF Faces which gets populated when a value is selected in another drop down. And its mandatory that we need to select both the values from the drop down. Hence i have used the attribute 'required' and set it to 'true'. The code snippet is here.
<af:selectOneChoice styleClass="selectOneClass" unselectedLabel="Pick One" inlineStyle="width:250px" accessKey="S" label="Site" id="siteDrop" disabled="false" rendered="true" required="true"
requiredMessageDetail="Select a Value" value="#{QualityEvalBean.sites}"
valueChangeListener="#{QualityEvalBean.siteValueChange}" autoSubmit="true" immediate="true">
<f:selectItems value="#{QualityEvalBean.siteslist}"/>
<!--f:selectItem itemLabel="White Field" itemValue="LEVEL4"/-->
</af:selectOneChoice>
<af:selectOneChoice inlineStyle="width:250px" unselectedLabel="Pick One" accessKey="T" label="Transaction Type" id="transDrop" rendered="true"
partialTriggers="siteDrop" immediate="true" required="true" value="#{QualityEvalBean.transactionType}">
<f:selectItems value="#{QualityEvalBean.transactionTypeList}"/>
</af:selectOneChoice>
While picking the value from the first drop down the second drop down is also getting validated and its giving a red colored icon beside the second drop down. There are absolutely no issues in case of populating the values in the second drop down.
Please help me in this regard.
Thanks
Rahul Uday

Answer 1

you can create a method to populate the context attribute that you are using to map to your dropdown box.
DATA: node_info TYPE REF TO if_wd_context_node_info.
DATA: it_table TYPE wdr_context_attr_value_list.
** select your dropdown data into it_table and pass it to your context attribute.
** here, mine is call PROJ_TYPE - the values should appear in your dropdown.
  node_info->set_attribute_value_set(
     name      = 'PROJ_TYPE'
     value_set = it_table ).