Ashish Awasthi's Blog: choice list

Showing posts with label choice list. Show all posts

Monday, 22 May 2017

Populate select one choice using Web Service Data Control in ADF Application

My previous post was about creating a JAX-WS Web Service from Java Bean and consuming web service and showing data in ADF table. Now In this post, I am going to elaborate about consuming that Web Service in ADF Application and show Employees data in selectOneChoice component

So for this requirement, We need to use Web Service Data Control and from that WSDL we can create ADF Faces components

Let's see how to implement this

Saturday, 21 December 2013

Using Multiple Selection (selectManyListbox & selectManyCheckbox component) in ADF

Hello All ,
This tutorial is based on use of selectManyListbox & selectManyCheckbox component in ADF to enable multiple selection.
Both component are same in functionality only somewhat different in look-feel.

Follow steps to use these component -

Create a fusion web application and create business components for Departments table of HR Schema

Now create a page and drop Departments Vo from data control on page as multiple selection (checkbox or listbox)

Now binding for this component is created in page-bindings, add a button on page to get total selected values

See how to get selected values in managed bean, JUCtrlListBinding is used to get selected values

import javax.faces.event.ActionEvent;

import oracle.adf.model.BindingContext;

import oracle.binding.BindingContainer;

import oracle.jbo.uicli.binding.JUCtrlListBinding;   

 public BindingContainer getBindings() {
        return BindingContext.getCurrent().getCurrentBindingsEntry();
    }

    public void getSelectedValue(ActionEvent actionEvent) {

        JUCtrlListBinding listBindings = (JUCtrlListBinding)getBindings().get("DepartmentsView1");
        Object str[] = listBindings.getSelectedValues();
        for (int i = 0; i < str.length; i++) {
            System.out.println(str[i]);
        }
    }

this method works for both listbox and checkbox, i have added all selected departments in a FacesMessage and displayed on page

Select All-

And Check-box component look like this-

Complete code written on 'Get Selected Values' button-

    /**Method to get BindingContainer of page
     * @return
     */
    public BindingContainer getBindings() {
        return BindingContext.getCurrent().getCurrentBindingsEntry();
    }

    /**Method to get Selected Values
     * @param actionEvent
     */
    public void getSelectedValue(ActionEvent actionEvent) {

        JUCtrlListBinding listBindings = (JUCtrlListBinding)getBindings().get("DepartmentsView1");
        Object str[] = listBindings.getSelectedValues();
        StringBuilder saveMsg =
            new StringBuilder("<html><body><b><p style='color:red'>Selected Departments are-</p></b>");

        saveMsg.append("<ul>");
        for (int i = 0; i < str.length; i++) {
            System.out.println(str[i]);
            saveMsg.append("<li> <b>" + str[i].toString() + "</b></li>");
        }

        saveMsg.append("</ul><br>");
        saveMsg.append("</body></html>");
        FacesMessage msg = new FacesMessage(saveMsg.toString());
        FacesContext.getCurrentInstance().addMessage(null, msg);

    }

Cheers- Download Sample

Monday, 23 September 2013

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

Hello All,
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

Download Sample App Cheers :-)

Wednesday, 18 September 2013

Using af:switcher in ADF Faces to dynamically render page components

Hello all,,
Sometimes we need to display page components on a condition basis , this can be achieved in adf using af:switcher component
Normally switcher component is a collection of multiple facets and on a given condition it decides that which facet should be rendered.

How to use af:switcher- see the steps

Create a Fusion web application and create business components using Departments and Employees table (HR Schema)

Now create a page in view Controller and drop a switcher component from component palette

Switcher is pure server side component so it doesn't have any client representation, so next move is to add facets in af:switcher, to add facets in switcher,
just right click--insert inside af:switcher-- facet

As in this tutorial i am going to show 2 tables(Departments U& Employees) so added 2 facets in af:switcher

Now time to drop tables in corresponding facets, Employees Table in Emp, Departments Table in Dept

Now i have created a static List that has values D for Departments and E for Employees, when user selects D the Departments table will be shown and for E Employees table will be shown

to do this select af:switcher and go to FacetName property and open expression builder to write conditional expression

Now run this page and select values in list to see- how switcher works

Download Sample App Cheers :-)

Friday, 9 August 2013

Programmatically populate values in a af:selectOneChoice component in ADF

In this tutorial you will see that how to populate selectOneChoice list from managed bean, sometimes we need to use custom list that are not model driven, this scenario can be implemented there

follow steps -

First of all create a fusion web application and a page in it
Now create a variable of type java.util.List in managed bean, and generate its accessors

    List<SelectItem> customList;

    public void setCustomList(List<SelectItem> customList) {
        this.customList = customList;
    }

    public List<SelectItem> getCustomList() {
        return customList;
    }

this list contains value of type javax.faces.model.SelectItem; that is supported by af:selectOneChoice
now time to add values in list, so to add values in this list i have written this code in getter of variable

    public List<SelectItem> getCustomList() {
        if (customList == null) {
            customList = new ArrayList<SelectItem>();
            customList.add(new SelectItem("i1","Item 1"));
            customList.add(new SelectItem("i2","Item 2"));
            customList.add(new SelectItem("i3","Item 3"));
            customList.add(new SelectItem("i3","Item 4"));
            customList.add(new SelectItem("i5","Item 5"));
    }
        return customList;
    }

Managed bean part is done, now add this to view layer

Drop choice list in page from component palette

Now bind choice list to bean List

See the page source after whole setup-

<?xml version='1.0' encoding='UTF-8'?>
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.1" xmlns:f="http://java.sun.com/jsf/core"
          xmlns:af="http://xmlns.oracle.com/adf/faces/rich">
    <jsp:directive.page contentType="text/html;charset=UTF-8"/>
    <f:view>
        <af:document title="listPage.jspx" id="d1">
            <af:form id="f1">
                <af:panelGroupLayout id="pgl1" layout="vertical" halign="center">
                    <af:spacer width="10" height="10" id="s1"/>
                    <af:selectOneChoice label="Custom List" id="soc1" contentStyle="font-weight:bold;color:darkgreen;">
                        <f:selectItems value="#{ListPolulatebean.customList}" id="si1"/>
                    </af:selectOneChoice>
                </af:panelGroupLayout>
            </af:form>
        </af:document>
    </f:view>
</jsp:root>

Run this page and see programmatic choice list-

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