Question

55

How to checked checkbox if boolean value is true?

rated 0 times [ 56] [ 1] / answers: 1 / hits: 16264 / 11 Years ago, fri, september 27, 2013, 12:00:00

I'm working on jsp application and I have a form that has a checkbox, I retrieve data from my database which has a bit field named "principal", I can get the value of this field which is a boolean but I can't checked or unchecked the checkbox depending on the value of "principal".

Here's my JSP code:

<tr>

 <td>Principal:</td>

  <td colspan="2">

   <input type="checkbox" id="a_principal" name="a_principal" value="<%=directorio.isPrincipal()%>"/>

  </td>

</tr>

Javascript code:

$(function (){

    if('#a_principal' == true){

         $("input:checkbox").attr('checked', true);

    }else{

        $("input:checkbox").attr('checked', false);

    }

    

});

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3 Years ago

answered 11 Years ago loganl · Accepted Answer

try with .prop instead of .attr()

$(function (){

    if($('#a_principal').val()== true){           

         $(input:checkbox).prop('checked',true);

    }else{

        $(input:checkbox).prop('checked', false);

    }

});

Js Fiddle Demo