如果复选框选中jquery，则禁用选择

Question

I have a html script where there is a multiple select I want to be "disabled" when I check a checkbox field.

Example:

<p><input type="checkbox" id="chk_select" name="check" value="ok" "/> deselect</p>

<p>
<select multiple="multiple" name="candidato[]" id="soci" required>
<option value="">-</option>
<option value="Name 1">Name 1</option>
<option value="Name 2">Name 2</option>
</select>
</p>

Is it possible to disable the multiple select with jquery?

Thank You! Giuseppe

Answer 1

Try this one.

 function checkstate() { document.getElementById('soci').disabled = document.getElementById('chk_select').checked; }

 <p><input type="checkbox" id="chk_select" name="check" value="ok" onclick="checkstate()"> deselect</p> <p> <select multiple="multiple" name="candidato[]" id="soci" required> <option value="">-</option> <option value="Name 1">Name 1</option> <option value="Name 2">Name 2</option> </select> </p>

Answer 2

You can find how to check if the checkbox is checked here: Check if checkbox is checked with jQuery

Than you can find how to disable select here: jQuery - disable selected options

Try to toggle a class on the select if the checkbox is checked.

Also, you can find the working example here: disable select if checkbox is checked

Answer 3

This will do the trick

 $('input[type="checkbox"]').change(function(){ if($(this).is(':checked')){ $('select').attr('disabled','disabled') }else{ $('select').removeAttr('disabled','disabled') } })

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <p><input type="checkbox" id="chk_select" name="check" value="ok" "/> deselect</p> <p> <select multiple="multiple" name="candidato[]" id="soci" required > <option value="">-</option> <option value="Name 1">Name 1</option> <option value="Name 2">Name 2</option> </select> </p>

Answer 4

The following is a jQuery based solution, but it can just as easily be done with vanilla JS on modern browsers:

 $('#chk_select').change(function(){ $('#soci').attr('disabled',this.checked); });

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <label><input type="checkbox" id="chk_select" name="check" value="ok"/> deselect</label> <p> <select multiple="multiple" name="candidato[]" id="soci" required> <option value="">-</option> <option value="Name 1">Name 1</option> <option value="Name 2">Name 2</option> </select> </p>

Vanilla JS solution for all browsers apart from Internet Explorer:

 function qs(s){return document.querySelector(s);} qs('#chk_select').addEventListener('change',function(){ qs('#soci').disabled=this.checked;});

 <label><input type="checkbox" id="chk_select" name="check" value="ok"/> deselect</label> <p> <select multiple="multiple" name="candidato[]" id="soci" required> <option value="">-</option> <option value="Name 1">Name 1</option> <option value="Name 2">Name 2</option> </select> </p>

Answer 5

Hope this helpful...

view

 <p>
    <input type="checkbox" id="chk_select" name="check" value="ok" onclick="myFunction()"/> 
 deselect
    </p>

script

  <script>
    function myFunction() {
      var checkBox = document.getElementById("myCheck");
      if (checkBox.checked == true){
        document.getElementById('soci').disabled = true;
      } else {
        document.getElementById('soci').disabled = false;
      }
    }
    </script>