dongshi9719 2013-09-26 02:24
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Jquery复选框切换不起作用

In my html page I want to dynamically insert checkboxes, and I want to have 1 master checkbox on top, so if that is checked, then all the dynamically created ones become checked, and if it is unchecked, then all dynamically ones become unchecked. I have this code:

<script type="text/javascript">
    $(function() {
        $("#selectAll").click(function() {
            var checked = $(this).prop('checked');
            $(".profilebox").attr("checked", checked);
        });
    });
</script> 

master check box

<input id="selectAll" type="checkbox" name="selectall" value="All">

other checkboxes: (gets inserted in a loop using this php code)

<input type='checkbox' class='profilebox' name='select' value='{$member_id}'>

However it is not functioning properly. If I click the master one, then they all get checked. If I click it again, then all get unchecked, then if I click it again, they all still remain unchecked.

Does anyone know the problem?

Thanks

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3条回答 默认 最新

  • dongluo3331 2013-09-26 02:25
    关注

    Use prop instead of attr, setting property of the element is guaranteed to work than setting attribute of the element. Older verison of jquery which did not have prop, attr used to perform the work of both, later prop was introduced and for setting properties like these prop serves the best.

    $(function() {
            $("#selectAll").click(function() {
                $(".profilebox").prop("checked", this.checked);
            });
        });
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论
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