Checking and unchecking radio buttons with Jquery Mobile

Question

I can't check a set of checkboxes programatically with jquery mobile, I have the following code:

<div data-role="fieldcontain"  id="div_radio" class="radiogroup">
    <fieldset data-role="controlgroup">
        <input type="radio" name="radio-pieces" id="radio-choice-1" value="3" checked="checked" />
        <label for="radio-choice-1">1 to 3</label>

        <input type="radio" name="radio-pieces" id="radio-choice-2" value="5"  />
        <label for="radio-choice-2">4 to 5</label>

        <input type="radio" name="radio-pieces" id="radio-choice-3" value="6"  />
        <label for="radio-choice-3">over 5</label>
    </fieldset>
</div>

If I do: $("input[type='radio']:last").attr("checked",true).checkboxradio("refresh"); everything works perfect, but none of this work at all:

$("input[type='radio']:first").attr("checked",true).checkboxradio("refresh");
$("input[type='radio']:eq(0)").attr("checked",true).checkboxradio("refresh");
$("input[type='radio']:eq(1)").attr("checked",true).checkboxradio("refresh");
$("input[type='radio']:eq(2)").attr("checked",true).checkboxradio("refresh");

How can I properly manipulate these elements? Unselecting all checkboxes also works fine:

$("input[type='radio']").attr("checked",false).checkboxradio("refresh");

It seems that the only checkbox working is the last one.

Answer 1

They all work just fine. You just need to trigger refresh on all input radio in group.

$("input[type='radio']:first").attr("checked", "checked");
$("input[type='radio']").checkboxradio("refresh");

jsFiddle is here.