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JQuery: Making Radio Buttons Behave as Check Boxes in IE

Problem: due to a client's requirement, I need to make radio buttons behave like checkboxes. That is, there is no radio button list, they are not mutually exclusive, clicking each button once selects it, clicking it the second time deselects it.

Here is a sample that is supposed to work for every element belonging to class myRadioButton. This is the full test page. I am running VS 2010 and jquery 1.4.1, as you can see from the sample.
Problem: I can't check radio buttons. Question: how to make it work?
Thank you.

//--------------------------------------------------------------------------------------
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplicationTest1._Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<style type="text/css">
.myRadioButton {}
</style>
<script src="scripts/jquery-1.4.1.js" type="text/javascript"></script>
<script type="text/javascript" language="javascript">
$(document).ready(function () {
$('.myRadioButton').mousedown(function (event) {
debugger
event.preventDefault();

if ($(this).attr('checked') == undefined) {
$(this).attr('checked', 'checked');
//$('input[id=' + $(this).attr('id') + ']').attr('checked', 'checked');
}
else {
$(this).removeAttr('checked');
//$('input[id=' + $(this).attr('id') + ']').removeAttr('checked');
}
});

$('.myRadioButton').click(function (event) {
event.preventDefault();
});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
This is a test.
</div>
<div class="row petsrow">
<asp:RadioButton runat="server" class="myRadioButton" ID="RadioButton1" Text=" RadioButton1" />
</div>
<div>
<asp:RadioButton runat="server" class="myRadioButton" ID="RadioButton2" Text=" RadioButton2" />
</div>
</form>
</body>
</html>

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leakim971

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Mare22

ASKER

This works. Thank you! But I don't fully understand what is going on here :). Can you please explain how your code works? Also, the real page would require a class selector, because there will be other radio buttons that are normal. How to combine a type/attribute and a class in a selector?

Thank you again.

leakim971

>Can you please explain how your code works?
for each radio button we create a new hidden one with the same name
> Also, the real page would require a class selector

    <script type="text/javascript" language="javascript">
        $(document).ready(function () {
            $(":radio", ".myRadioButton").each(function () {
                $("form").append("<input type='radio' name='" + $(this).attr("name") + "' style='display:none' value='0' />");
            })
            $(":radio:visible", ".myRadioButton").click(function () {
                var $bro = $(":radio[name='" + $(this).attr("name") + "']").not(this);
                if ($bro.val() == "0") {
                    $bro.val("1");
                    $bro.attr("checked", false);
                }
                else {
                    $bro.val("0");
                    $bro.trigger("click");
                }
            });
        });
    </script>

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leakim971

>Can you please explain how your code works?
to unclick the clicked radio, we trigger a click on the hidden one

Mare22

ASKER

leakim971, when I debug this, I don't get into the triggered click. Why?

Mare22

ASKER

leakim971, I got to say, you are genius.

leakim971

put an alert("ok"); between line 6 and 7

Mare22

ASKER

the alert pops up just once per click.

One other question: I have a couple of attributes:

<asp:RadioButton runat="server" class="myRadioButton" ID="id1" Text=" text" code="code" />

when I access them from the click function:

var txt = $(this).attr("Text");

they come as undefined. Why?

leakim971

because .net create a span and inside you have the radiobutton
the id is set to the span

Mare22

ASKER

1. How can I get the attributes?
2. The click event is not triggered the second time - why and how does it work then?

Mare22

ASKER

leakim971, many thanks!

leakim971

you're welcome, have a nice week!

Mare22

ASKER

leakim971, you too.

Can you please answer at least the attributes question (#1 from above)? I really need it.

leakim971

Server side :

       <asp:RadioButton runat="server" class="myRadioButton" ID="id1" Text=" text" code="code" />

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In the browser :

        <span class="myRadioButton">
            <input id="MainContent_RadioButton1" type="radio" name="ctl00$MainContent$RadioButton1" value="RadioButton1">
            <label for="MainContent_RadioButton1"> RadioButton1</label>
        </span>

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so to read the Text "attribute", we get the content of the next label