how to check whether checkbox is checked or unchecked using jquery?

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C#

function GetSelectedRow(e) {
        var clickedRow = $(e).closest("tr");
        var id = $(clickedRow).find('td').eq(0).text();
        var gvcheck = document.getElementById('<%=dgv_Modules.ClientID %>');
        var chklist = gvcheck.getElementsByTagName('input');
        for (var i = 0; i < chklist.length; i++) {
            if (chklist[i].prop("checked",true)) {
                alert("c");
            }
        }
        return false;
    }

I have used prop() but its not working
chklist is checkbox

Posted 19-Aug-14 21:37pm

m-shraddha

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2 solutions

Solution 2

C#

function GetSelectedRow(e) {
       var clickedRow = $(e).closest("tr");
       var id = $(clickedRow).find('td').eq(0).text();
       var gvcheck = document.getElementById('<%=dgv_Modules.ClientID %>');
       var chklist = gvcheck.getElementsByTagName('input');
       for (var i = 0; i < chklist.length; i++) {
           if ($(chklist[i]).prop("checked")) {
               var checkedrowid = $(chklist[i]).find('td').eq(0).text();
           }
       }
       return false;
   }

Posted 19-Aug-14 21:49pm

m-shraddha

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nrgjack · Accepted Answer · 2014-08-19T21:46:00

there are several way :

var isChecked = $("input:checked").length > 0
var isChecked = $("input").is(':checked')
var isChecked = $("input").prop('checked')
var isChecked = $("input").attr("checked") === "checked" // WRONG (dows not change if you check/unckeck it)

and a lot more.

i prefer the second way, it is a lot easier to read

read more about them here http://api.jquery.com/prop/[^]

NOTE : your .prop("checked",true) is a SETTER, you are checking the checkbox, the GETTER has no value (omit the true)