Clever Geek Handbook

Set the total number of checkboxes in an array

I have a checkbox like this

  for($j=1;$j<=10;$j++)      
  <input type="checkbox" name="chkLimit[]" id="chkLimit_<?php echo $j;?>" value="<?php echo $j;?>" />

i got 10 checkbox

and i will write jquery code like this ...

  $(document).ready(
    function (){
    setLimitSelection();
    }


);


   function setLimitSelection(){
    $('input[name="chkLimit[]"]').limitSelection(
        {
            // number of items to limit to
            limit: 4,
            // on error, do this
            onfailure: function (n){
                $("#idCheckboxMsg").html(
                    "You can not select more than " + n + " items."
                );
                return false;
            },
            // on success, do this
            onsuccess: function (n){
                $("#idCheckboxMsg").html("");
                return false;
            }
        }
    );
    $('select[name="selLimit[]"]').limitSelection(10);
}

$("input.chkLimit").click(function() {
    var numSelected = $("input.chkLimit[]:checked").length;
    var numLeft = 10 - parseInt(numSelected);
    $("#statusBox").html("You have "+numSelected+" CD selected.<br>You have "+numLeft+" selections left.");
});

what i want: user cannot select more than 4 checkboxes

thank

+1


source to share


2 answers


I haven't tested this, but it should do the job for you:

$(function(){
    $("#myCheckboxes input[type='checkbox']").change(
        var checked = $("#myCheckboxes input[type='checkbox'][checked]").length;
        if(checked == 4){
            $("#myCheckboxes input[@type='checkbox']").not(":checked").attr('disabled',true);
        }else{
            $("#myCheckboxes input[@type='checkbox']").not(":checked").attr('disabled',false);
        }
    )
});


Every time the checked state of a checkbox changes, it checks how many checkboxes are checked. If there are 4, it disables unchecked fields, otherwise it allows them. This assumes they all live in a container called#myCheckboxes

0


source


It looks like @inkedmn had some syntax errors, but the comment field is just not enough for development. So here's what I think he is trying to do:

$(function(){
    $("#myCheckboxes input[type='checkbox']").change(function() {
        var checked = $("#myCheckboxes input[type='checkbox']:checked").length;
        if(checked == 4){
            $("#myCheckboxes input[type='checkbox']")
                .attr('disabled',true)
                .filter(':not(:checked)')
                .attr('disabled',false);
        } else {
            $("#myCheckboxes input[type='checkbox']").attr('disabled',false);
        }
    )
});


This should do it for you.

0


source






More articles:


All Articles