radio Buttons and .attr('checked','checked') does NOT work in IE7

Question

Is there any way to get radio buttons checked upon appending in IE7?

What seems to work in every browser, doesn't look like it works in IE6,7 despite reading everywhere that I'm doing it correctly. I have absolutely no idea why it's not working.

var $itemVariantRowRadio = $("<input/>")
    .attr("type", "radio")
    .attr("name", "itemvariant")
    .addClass("itemvariant")
    .val('whatever');


    $itemVariantRowRadio.attr('checked', 'checked');
    $itemVariantRow.append($itemVariantRowRadio)

Now if I do a console.log($itemVariantRowRadio.attr('checked') in IE6/7 then it says that it's set to TRUE but the radio doesn't actually get checked or pick up as checked.

Nightmare! Anyone else come across this and have any sort of fix?

Mafia

Answer 1

If in jQuery >= 1.6:

Use prop as seen here: .prop() vs .attr()

$itemVariantRowRadio.prop('checked', true);

---

If in jQuery < 1.6:

$itemVariantRowRadio.attr('checked', true);

---

ALSO:

Try creating your element like so:

var $itemVariantRowRadio = $("<input/>",{
     type: 'radio',
     name: 'itemvariant',
     class: 'itemvariant',
     checked: true,
     value: 'whatever'
});
$itemVariantRow.append($itemVariantRowRadio);

See fiddle: http://jsfiddle.net/maniator/6CDf3/
An example with 2 inputs appended: http://jsfiddle.net/maniator/6CDf3/2/

Candycecandystriped

whoa when was 1.6 released? and now 1.6.1... surely there has to be a better solution. I mean surely this hasn't been broken up until 1.6 :D – Mafia

@Neal - I think this should be .attr() in all jQuery versions - these are initial attributes being set before insertion in the DOM. – Lounge

@Dominic, i added a fiddle demo – Candycecandystriped

@Lounge -- i did not realize that is what the OP was doing, but no, you should use prop for checked even before it is in the dom – Candycecandystriped

hmm, I may be misinterpreting what the conclusion of #5885971 was – Lounge

@Lounge -- see the end of the solution: Of course, there are situations where the opposite is true, e.g. when working with "boolean" HTML attributes like checked or disabled. In that case, it would be more robust to set the strongly-typed DOM property instead of creating the less well-defined HTML attribute. (sorry for putting the whole quote here) -- use prop for checked is the general summation – Candycecandystriped

Thanks for the element creating suggestion, it should help me loads. And you've also opened my eyes to fiddle :D – Mafia

@Dominic, no problem ^_^ anytime – Candycecandystriped

Answer 2

Try: $itemVariantRowRadio.not(':checked').click().change();

So you actually click the checkbox just like you would do as a user with the mouse. not(':checked') will get you sure it was not already checked before. And trigger the change event afterwards, as jQuery click does not do that by itself.

Twylatwyman

Answer 3

MSIE doesn't allow you to change the type of an input element once it has been created.

See http://bugs.jquery.com/ticket/1536 and http://api.jquery.com/jQuery/#jQuery2

Just create it so:

$('<input type="radio">')

Lounge

This actually seems to fix it :) – Mafia

Answer 4

You don't need to trigger the click event if you apply the checked attribute after you append it to the dom: http://jsfiddle.net/XjHUe/2/

<div id='content'></div>
var $itemVariantRowRadio = $("<input/>")
    .attr("type", "radio")
    .attr("name", "itemvariant")
    .addClass("itemvariant")
    .val('whatever');
//$itemVariantRowRadio.attr("checked", true);
$("#content").append($itemVariantRowRadio);
$(".itemvariant").attr('checked',true);

var val = $(".itemvariant").attr("checked");
alert(val);

Spacious