Preselect checkbox in SelectManyCheckbox Component in ADF

Hi All,

In this post I am going to show you how you can preselect the checkbox in SelectManyCheckbox component in ADF.

Suppose you have created SelectManyCheckbox in your page as following:

<?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 id="d1">
      <af:messages id="m1"/>
      <af:form id="f1">
                     <af:selectManyCheckbox id="smc1"
                               value="#{backingBeanScope.SelectManyCheckboxBean.selectedCheckbox}"
                               autoSubmit="true" label="List of Items">
          <f:selectItems value="#{backingBeanScope.SelectManyCheckboxBean.checkboxList}"
                         id="si1"/>             
        </af:selectManyCheckbox>                         
      </af:form>
    </af:document>
  </f:view>
</jsp:root>

In your bean write down the following lines of code :

package com.kunal.test.view;

import java.util.ArrayList;
import java.util.List;

import javax.faces.model.SelectItem;


public class SelectManyCheckboxBean {
    public SelectManyCheckboxBean() {
        super();
    }
    List<SelectItem> checkboxList;

    public void setCheckboxList(List<SelectItem> checkboxList) {
        this.checkboxList = checkboxList;
    }

    public List<SelectItem> getCheckboxList() {
        if (checkboxList == null) {
            checkboxList = new ArrayList<SelectItem>();
            checkboxList.add(new SelectItem(1, "Tea"));
            checkboxList.add(new SelectItem(2, "Coffee"));
            checkboxList.add(new SelectItem(3, "Juice"));
            checkboxList.add(new SelectItem(4, "Shake"));
        }
        return checkboxList;
    }

    List selectedCheckbox;

    public void setSelectedCheckbox(List selectedCheckbox) {
        this.selectedCheckbox = selectedCheckbox;
    }

    public List getSelectedCheckbox() {
        if(null==selectedCheckbox){
            selectedCheckbox=new ArrayList();
            selectedCheckbox.add(3);
            selectedCheckbox.add(4);
        }
        return selectedCheckbox;
    }

}
 
Now when you run your page you can see the following result on your page.

Happy Coding :)