Jquery-function/Checkbox using Jquery at master · akhiljain1611/Jquery-function · GitHub

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  $(document).ready(function () {
                //            $('#CP_Main_gvPOItems input[type=checkbox]').change(function () {
                //                disableCheckbox();
                //            });
                var checkedCount, checkboxCount, disableCheckBox = 0;
                var text = $("#CP_Main_lblStatus").val().trim();
                var text1 = $("#CP_Main_txtPONumber").val().trim();
                var text2 = text1.substring(0, 2);
                //var txt = $("#<%=lblStatus.ClientID%>")
                //                        alert(text);
                //                        alert(text1);
                //                        alert(text2);
                disableCheckbox = function () {
                    //checked check-boxes length
                    checkedCount = $('#CP_Main_gvPOItems input[type=checkbox]:checked').length;

                    //check-boxes length
                    checkboxCount = $('#CP_Main_gvPOItems input[type=checkbox]').length;

                    //if no check-box is selected then alert
                    //                if (checkedCount == 0) {
                    //                    alert('No check-box is selected');
                    // }
                    //check for all disabled check-boxes
                    //var disableCheckBox = 0;
                    $('#CP_Main_gvPOItems input[type=checkbox]').each(function () {
                        if ($(this).is(':disabled')) {
                            disableCheckBox++;
                        }
                    });

                    //if all check-boxes are disabled then disable button
                    if (checkboxCount == disableCheckBox) {

                        $('#CP_Main_btnCancelItem').attr("disabled", "disabled"); //# is missing
                    }
                }


$("#CP_Main_btnCancelItem").button().click(function () {

                    var checkedCount = $('#CP_Main_gvPOItems input[type=checkbox]:checked').length;

                    var isDisabled = $(checkedCount).is(':disabled');
                    // alert(isDisabled);
                    var status = false;
                    if (checkedCount == 0 && isDisabled) {
                        alert('No check-box is selected');
                        status = false;
                    }
                    else if (!isDisabled && checkedCount > 0) {
                        var r = confirm("Are you sure you want to cancel selected Record(s)?'");
                        if (r == true) {

                            status = true;
                            GetCheckedRows();
                        }
                    }
                    return status;
                });