如何在日期选择器中设置3个月的日期范围？

Question

我从这里开始约会.我想将maxDate设置为3个月取决于从日期选择.如果用户从日期01-01-2014中选择,则#to maxDate应该是基于起始日期的下一个3个月,如(01-04-2014).

$(function () {
    $("#from").datepicker({
        minDate: "dateToday",
        changeMonth: true,
        dateFormat: 'dd-mm-yy',

        onClose: function (selectedDate) {
            $("#to").datepicker("option", "minDate", selectedDate);
        }
    });
    $("#to").datepicker({
        minDate: "dateToday",
        changeMonth: true,
        dateFormat: 'dd-mm-yy',
        maxDate: selectedDate + "+3M", //I want to set condition like this

        onClose: function (selectedDate) {
            $("#from").datepicker("option", "maxDate", selectedDate);
        }
    });
});

给我一些解决我问题的建议

Answer 1

小提琴演示

$(function () {
    $("#from").datepicker({
        minDate: "dateToday",
        changeMonth: true,
        dateFormat: 'dd-mm-yy',
        onClose: function (selectedDate, instance) {
            if (selectedDate != '') { //added this to fix the issue
                $("#to").datepicker("option", "minDate", selectedDate);
                var date = $.datepicker.parseDate(instance.settings.dateFormat, selectedDate, instance.settings);
                date.setMonth(date.getMonth() + 3);
                console.log(selectedDate, date);
                $("#to").datepicker("option", "minDate", selectedDate);
                $("#to").datepicker("option", "maxDate", date);
            }
        }
    });
    $("#to").datepicker({
        minDate: "dateToday",
        changeMonth: true,
        dateFormat: 'dd-mm-yy',
        onClose: function (selectedDate) {
            $("#from").datepicker("option", "maxDate", selectedDate);
        }
    });
});