如何确定最近的TR是否有值（检查）？

Question

JQgrid代码

    function LeaveHalfDay() {
    var url1 = URL

    $("#LeaveHalfDayDataEntryList").jqGrid({
        url: url1,
        datatype: 'json',
        mtype: 'POST',
        colNames: ['RowId', 'With Halfday <br /> Morning', 'With Halfday <br /> Afternoon', 'Date', 'Day'],
        colModel: [
                { name: 'rowId', index: 'rowId', hidden: true, editable: true, sortable: false, width: 80, align: 'left' },          
                {name: 'cbox_leave_half', index: 'cbox_leave_half', editable: true, formatter: cboxFormatterLeaveHalfDay, formatoptions: { disabled: false }, edittype: 'checkbox', editoptions: { value: "True:False" }, sortable: false, width: 70, align: 'center' },
                { name: 'cbox_leave_halfPM', index: 'cbox_leave_halfPM', editable: true, formatter: cboxFormatterLeaveHalfDayPM, formatoptions: { disabled: false }, edittype: 'checkbox', editoptions: { value: "True:False" }, sortable: false, width: 70, align: 'center' },
                { name: 'LStartDate', index: 'LStartDate', editable: false, sortable: false, width: 70, align: 'left' },
                { name: 'LDate', index: 'LDate', editable: false, sortable: false, width: 70, align: 'left' }           
          ],
        pager: $('#LeaveHalfDayDataEntryPager'),
        rowNum: 5,
        rowList: [5, 10, 20],
        sortname: '',
        sortorder: '',
        viewrecords: true,
        imgpath: '/Content/themes/redmond/images/',
        height: '100%',
        loadComplete: function (result, rowid) {
            var ids = jQuery("#LeaveHalfDayDataEntryList").getDataIDs();
            var len = ids.length, newLine;
            if (len < 5) {
                AddNewRowToGrid(len, "#LeaveHalfDayDataEntryList");
            }
            $("#LeaveHalfDayDataEntryPager").css("width", "auto");
            $("#LeaveHalfDayDataEntryPager .ui-paging-info").css("display", "none");
        }
    });
    return false;
}

我的jqgrid

中的function复选框有AM

$('.cbox_leave_half').live('click', function (e) {
    var tr = $(e.target).closest('tr');        
    var target = $(e.target).is(':checked');
    HalfDayrowsObj[tr[0].id].HalfDay = $(e.target).is(':checked'); 
    _hashalfday = _hashalfday + 1;
    var EmployeeId = $("#hidEmployeeId").val();
    var StartDate = $("#LSDate").val();
    var EndDate = $("#LEDate").val();
    var noofdays = $("#txtNoDays").val();
    if (StartDate != "" && EndDate != "") {

        if (HalfDayrowsObj[tr[0].id].HalfDay == true) {
            NoOfHalfDay = NoOfHalfDay + 4;
            ComputeTotalDayHourLeave(EmployeeId, StartDate, EndDate, NoOfHalfDay);
            noofdays = parseFloat(noofdays) - parseFloat('.5');
            $("#txtNoDays").val(noofdays);
            $("#hidNoofDays").val(noofdays);
            $("#txtNoHrs").val(noofdays * 8);
        }
        else {
            NoOfHalfDay = NoOfHalfDay - 4;
            ComputeTotalDayHourLeave(EmployeeId, StartDate, EndDate, NoOfHalfDay);
        }
    } 
});

PM复选框

$('.cbox_leave_halfPM').live('click', function (e) {
    chkrowidPM = $(this).closest("tr").attr("id");
    var tr = $(e.target).closest('tr');
    var target = $(e.target).is(':checked');
    HalfDayrowsObjPM[tr[0].id].HalfDayPM = $(e.target).is(':checked'); // update the checked date on HalfDayrowsObj.
    _hashalfdayPM = _hashalfdayPM + 1;
    var EmployeeId = $("#hidEmployeeId").val();
    var StartDate = $("#LSDate").val();
    var EndDate = $("#LEDate").val();
    var noofdays = $("#txtNoDays").val();
    if (StartDate != "" && EndDate != "") {

        if (HalfDayrowsObjPM[tr[0].id].HalfDayPM == true) {
            NoOfHalfDay = NoOfHalfDay + 4;
            ComputeTotalDayHourLeave(EmployeeId, StartDate, EndDate, NoOfHalfDay);
            noofdays = parseFloat(noofdays) - parseFloat('.5');
            $("#txtNoDays").val(noofdays);
            $("#hidNoofDays").val(noofdays);
            $("#txtNoHrs").val(noofdays * 8);
        }
        else {
            NoOfHalfDay = NoOfHalfDay - 4;
            ComputeTotalDayHourLeave(EmployeeId, StartDate, EndDate, NoOfHalfDay);

            noofdays = parseFloat(noofdays) + parseFloat('.5');
            $("#txtNoDays").val(noofdays);
            $("#hidNoofDays").val(noofdays);
            $("#txtNoHrs").val(noofdays * 8);
        }

    }
    if ($('.cbox_leave_halfPM').is(':checked')) {
        $('#divLeaveIsHalfDay').attr('checked', 'checked'); // checked Half Day if one of the checkboxes is checked.            
    }
    else {
        $('#divLeaveIsHalfDay').removeAttr('checked'); // unchecked Half Day if one of the checkboxes is unchecked.

    }
});

此代码用于切换jqgrid

中的复选框

感谢vijayP提供此代码。

 if ($(this).attr("checked", true)) {
    $(tr).find('.cbox_leave_halfPM').attr("checked", false);
}

现在我的问题是我想确定是否检查AM/PM。

例如，他们都取消选中AM/PM并检查PM，并且条件是减去# of days and # of hours。如果AM被选中或取消选中以单击同一行的PM，我就会遇到问题。我希望你们明白:)。