Dynamically enable or disable items of ADF bound List (af:selectOneChoice) -Oracle ADF

This tutorial is about a requirement of conditionally enabling/disabling items (values) of adf bound List (af:selectOneChoice) component
here i am taking reference of default HR Schema (Departments and Location table )

See the steps-

• Create a Fusion Web Application and business components using both tables

•  Now create List of Values (Lov) on locationId of departments VO from Location VO

• Set List Attribute to LocationId and for UI city will be shown

• Now Drag Departments VO from Data Control on page as a form

•  Select LocationId list field and delete f:selectItems from it, now drag af:selectItem as child of af:selectOneChoice and surround it with af:forEach 

• Add tree binding of Location ViewObject to page bindings in order to populate list items using forEach

•  Now select af:forEach and set its property and variable name, as we have to iterate through Location VO for list items

•  Again select af:selectItem and set its value and label property using forEach variable's  

• Now run your application, and see that list box is ready with values

• Now we have to disable its values as a condition basis, i have written an Expression on af:selectItem's disabled property
  
  
  
  


• I have written condition for DepartmentId 100 and 110, see in source of page



<af:selectOneChoice value="#{bindings.LocationId.inputValue}" label="#{bindings.LocationId.label}"
                                        required="#{bindings.LocationId.hints.mandatory}"
                                        shortDesc="#{bindings.LocationId.hints.tooltip}" id="soc1"
                                        contentStyle="width:150px;color:red;">
                        <af:forEach items="#{bindings.Locations1.rangeSet}" var="list">
                            <af:selectItem label="#{list.City}" id="si1" value="#{list.LocationId}"
                                           disabled="#{ (bindings.DepartmentId.inputValue==100 and (list.LocationId==1000 || list.LocationId==1300)) || (bindings.DepartmentId.inputValue==110 and (list.LocationId==1500 || list.LocationId==1600 || list.LocationId==1700 || list.LocationId==1800 || list.LocationId==1900))}"/>
                        </af:forEach>
                    </af:selectOneChoice>



• Now value given in Expression for Location Id will be disabled for given Department
• Run your page and select DepartmentId 100 and 110 to see disabled list items