how to set checked to checkbox and radio button

[lynn fann]

i wan the checkbox to be checked & the radio button to be selected initially when displaying the page. How do i do it?
The checkbox & radio button are loaded in dataTable dynamically?

Any online tutorial for it?

-thanks.

[Bauke Scholtz]

Just preset the property behind the 'value' attribute. You can do that in for example the constructor of the bean.

[lynn fann]

okie, i have managed to set the checked for checkbox, but i having another problem.

i have 5 checkbox to display and 2 of them are checked initially. When i submit the form (with 2 default checked checkboxes), i can't get those checked values, my list size is 0.
When i select 1 more of the checkbox (2 default and 1 new) , the list size is 1.

my codes as follow:
managed bean (partial code):

   
        Iterator pIt = plansList.iterator();
        allPlans= new ArrayList();
       selectedAllPlans= new ArrayList();
 while(pIt .hasNext()){
           Plan planObj= (Plan) pIt.next();
           if(planObj.getIsEnabled().equals("Y") && planObj.getIsEnabled() !=null){
                selectedAllPlans.add(plan);
           }     
      allPlans.add(planObj);
} 

 

JSF

    
<h:dataTable var="p" value="#{PlansBean.allPlans}">
  <h:column> 
             <h:selectManyCheckbox id="planInd" value="#{PlansBean.selectedAllPlans}"> 
                <f:selectItem itemValue="#{p.plan}"/>
            </h:selectManyCheckbox>
  </h:column>
</h:dataTable>

why is this so?


-thanks.

[Bauke Scholtz]

You're binding the checkbox value of ALL rows with a single and the same bean property.
I think that it is obvious that every next row would overwrite the value of the previous row.
You need to bind the checkbox value to the row object in question, not to the parent bean.

[lynn fann]

When i set the code to the following, i can get the list size correctly.

    
            <h:selectManyCheckbox id="vas" value="#{PlansBean.preSelectPlans}"> 
                <f:selectItems value="#{PlansBean.selectedAllPlans}"/>
            </h:selectManyCheckbox>

but i need the layout to be 1 checkbox per row, the code above will display all the checkbox together.

How should i go about it?

-thanks.

[Bauke Scholtz]

You want ONE checkbox per row? Use h:selectBooleanCheckbox.
You may get some ideas out of this: http://balusc.blogspot.com/2006/06/using-datatables.html

[lynn fann]

i have the following code to checked the checkbox when loading the page:

               
<h:selectManyCheckbox id="planInd" value="#{PlansBean.selectedAllPlans}">    
    <f:selectItem itemValue="#{p.plan}"/>   
</h:selectManyCheckbox> 
  

Now if i use the booleanCheckBox, how do i check whether the checkbox needs to be checked initially?

[Bauke Scholtz]

The answer is already given.

To be sure, you have read this chapter? http://balusc.blogspot.com/2006/06/using-datatables.html#SelectMultipleRows