Question

I have a boolean(primitive) variable in my bean. I need its value to be true or false depending on the radio button selected by user.

I am implementing JSF radio buttons in two different columns of the same row of a jsf datatable.
It is a requirement that i use radio buttons in two columns of the same row.

Now, i have to make sure just one of the buttons id selected for a row.

So my approach is ,

i am using one radio button mapped to the bean and the other radio button as a dummy.

<h:column>
 <h:selectOneRadio id="mixtas" value="#{bean.mixtas}">
  <f:selectItem itemValue="true"></f:selectItem>
 </h:selectOneRadio>    
</h:column>

<h:column>
 <h:selectOneRadio id="exclusi" >
  <f:selectItem itemValue="true"></f:selectItem>
 </h:selectOneRadio>
</h:column>

And i am handling the select just one functionality using jquery

$('input[id*="mixtas"]').live("click",function(){
    var $index = this.id.split(':')[2]; \\to identify the row index
    var $id = $index+":exclusi:0"; \\generating id for other radio button
    $('table[id$="'+$id+'"]').attr("checked",false); \\ to make the other radio false   
});

$('input[id*="exclusi"]').live("click",function(){
    var $index = this.id.split(':')[2]; \\ to identify the row index
    var $id = $index+":mixtas:0"; \\generating id for other radio button
    $('input[id$="'+$id+'"]').attr("checked",false); \\ to make the other radio false   
});

The functionality works . Atleast half of it (i am still working on the rest).

But the issue is .

If i the mixtas radio button is unchecked and i try to proceed to another page.
It gives error “Property mixtas cannot be set to null“.

Is there any way to assign it a value false rather than null. Maybe in jquery or through bean.

Any suggestions please ….

Thanks In advance.

Answer 1

From your previous questions I assume that you are using JSF 2.0. Then you could get the desired behavior without custom javascript:

<h:column>
  <h:selectOneRadio value="#{bean.mixtas}" id="mixtas">
    <f:selectItem itemValue="true"/>
    <f:ajax render="exclusi"/>
  </h:selectOneRadio>
</h:column>

<h:column>
  <h:selectOneRadio value="#{bean.mixtas}" id="exclusi">
     <f:selectItem itemValue="false"/>
     <f:ajax render="mixtas"/>
  </h:selectOneRadio>
</h:column>