Radio inputs don't work in Internet Explorer 7

[scottmessinger]

I'm seeing an issue with IE7 radio buttons. To replicate:

1. Open: http://knockoutjs.com/examples/animatedTransitions.html
2. Click "Display advanced options"
3. Try to choose one of the radio options.

If your IE7 works like mine, you shouldn't be able to select the radio buttons.

I'm using IE 7.00.5730.13

Any ideas what's going on?

[isleigh]

I think this is linked to this #195

In the checked binding this code runs

// IE 6 won't allow radio buttons to be selected unless they have a name
    if ((element.type == "radio") && !element.name)
        ko.bindingHandlers['uniqueName']['init'](element, function() { return true });

and the uniqueName doesnt work for ie7 (it has an ie6 specific fix)

If you inspect the generated list elements (eg using IE Developer toolbar) you will see that they dont have a name attribute which is required for radio groups to work

[SteveSanderson]

Thanks for reporting this, and for correctly diagnosing the cause. It's now fixed in the latest source code.

The reason this wasn't found before is that it only happens when you run a real IE7 instance, and not when you run IE9 in IE7 mode... :)