问fullCalendar使用eventAllow根据给定的DateTime限制事件

EN

        $("#calendar")
        .fullCalendar({
            header: {
                left: "agendaWeek month",
                center: "title",
                right: "prev, today, next"
            },
            defaultView: "agendaWeek",
            //click on a day in the month view to go to that week
            dayClick: function (date, jsEvent, view) {
                if (view.name === "month") {
                    $("#calendar").fullCalendar("changeView", "agendaWeek");
                    $("#calendar").fullCalendar("gotoDate", date);
                }
            },
            editable: true,
            timeFormat: "H:mm",
            droppable: true,
            timezone: "Europe/London",
            eventLimit: true,
            eventSources: [

                "/Home/GetCalendar"
            ],
            dragRevertDuration: 0,
            allDaySlot: false,
            minTime: "07:00:00",
            firstDay: 1,
            aspectRatio: 1.97,
            //this moves events from tray to calendar
            drop: function (date, jsEvent, ui, resourceId) {
                UpdateEvent($(this).attr("uniqueId"), date);
                $(this).remove();
            },
            eventDragStop: function (event, jsEvent, ui, view) {
                //if the event is hovering over the tray
                if (isEventOverDiv(jsEvent.clientX, jsEvent.clientY)) {
                    $("#calendar").fullCalendar("removeEvents", event.uniqueId);
                    //adds to the panel 
                    UpdateEvent(event.uniqueId, "");
                }
            },
            //adds description underneath title
            eventRender: function (event, element) {
                if (event.location !== "") {
                    element.find(".fc-content").append(event.location);
                } else {
                    element.find(".fc-content").append(event.assignmentName + "<p>" + event.moduleName + "</p>");
                }
                element.find(".fc-content").qtip({content: {
                    text: event.details
                }});
            },
            //this sends a pop up to confirm the drop - probably don't need all the time
            eventDrop: function (event, delta, revertFunc, jsEvent, ui, view) {
                if (confirm("Confirm move?")) {
                    UpdateEvent(event.uniqueId, event.start);
                } else {
                    revertFunc();
                }
                //UpdateEvent(event.uniqueId, event.start);
            },
            eventAllow: function (dropLocation, draggedEvent) {
                var day = moment(draggedEvent.dueDate);
                if (dropLocation.start > day) {
                    return false;
                }
            },
            eventClick: function (event) {
                $.ajax({
                    type: "GET",
                    url: "/Home/EditEventView",
                    data: { eventId: event.uniqueId },
                    success: function (response) {
                        ModalControl("#editEventModal");
                        $("#editEventModal").html(response);
                    }
                });
            },
            theme: true
        });

            var newRows = rows.Select(e => new
        {
            uniqueId = e.EventId,
            title = e.Title,
            start = e.StartTime,
            end = e.EndTime,
            details = e.Details,
            location = e.Location,
            className = e.ClassName,
            editable = e.Editable,
            module = e.Module.ModuleId,
            assignment = e.Assignment.AssignmentId,
            assignmentName = e.Assignment.Title,
            moduleName = e.Module.ModuleName,
            color = e.Module.Color,
            dueDate = e.DueDate
        }).ToList();
        return Json(newRows, JsonRequestBehavior.AllowGet);