Cannot set checkbox to checked using jquery

Question

I have the following javascript function. A the top of the function, I am able to detect if a checkbox is checked using $(elem).is(':checked'). Later in the function I want to wire up an onclick event in a modal window such that it will checkmark the elem's checkbox, but this does not seem to work.

Here is the function:

function toggleProductChkBx(elem,id)
    {
        if ($(elem).is(':checked')) {

        } else {

            $('#clearProductModal').on('show', function () {
                removeBtn = $(this).find('.danger');
                removeBtn.click(function () { clearProduct(id) });

                cancelBtn = $(this).find('.secondary');

                //THIS IS THE LINE THAT IS NOT WORKING
                cancelBtn.click(function () { $(elem).attr("checked", "true"); });

            })
            .modal({ backdrop: true });
        }
    }

Thanks for the help!

possible duplicate of How do I check a checkbox with jQuery or JavaScript? — Barmar
– Barmar, Commented May 7, 2013 at 0:03

Starx · Accepted Answer · 2013-05-07 00:12:22Z

4

Change

cancelBtn.click(function () { $(elem).attr("checked", "true"); });

To

cancelBtn.click(function () { $(elem).prop("checked", true); });

edited May 7, 2013 at 0:12

Starx

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answered May 7, 2013 at 0:03

Zeb Rawnsley

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1 Comment

Blender Over a year ago

.prop('checked', true) would be better.

Mamuz · Accepted Answer · 2013-05-07 00:06:49Z

0

try this:

$(elem).attr("checked", true);

answered May 7, 2013 at 0:06

Mamuz

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