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Yes, it is possible to add week number in month view and the sample can be download from the below location.
Kindly find the below code example used in the sample.
<Code>
function onCreate() {
var obj = $("#Schedule1").data("ejSchedule");
if (obj.currentView() == "month") {
Date.prototype._getWeekNumber = function () {
var weekNo = Math.ceil((((this - new Date(this.getFullYear(), 0, 1)) / 86400000) + new Date(this.getFullYear(), 0, 1).getDay() + 1) / 7);
return (weekNo > 52) ? weekNo - 52 : weekNo;
};
var result = $.grep($(".cusRow"), function (value) { if ($(value).hasClass("cusRow")) { return value; } });
if (result.length != 0) $(".cusRow").remove();
var date = new Date(obj.currentDate());
var weekFirst = new Date(date.getFullYear(), date.getMonth(), 1);
var $tr = "<tr class='cusRow'>";
Date.prototype._currentWeekDates = function (firstdayofweek) {
var dayDiffer = this.getDay() - firstdayofweek,
start = new Date(this.getFullYear(), this.getMonth(), this.getDate() + (((dayDiffer < 0) ? dayDiffer + 7 : dayDiffer) * -1)),
end = new Date(start.getFullYear(), start.getMonth(), start.getDate() + 6);
return { start: new Date(start), end: new Date(end) };
};
for (var a = 0, len = obj._dateRender.length / 7 ; a < len; a++) {
var weekDate = weekFirst._currentWeekDates(obj._firstdayofweek);
var weekNumber = weekDate.start._getWeekNumber();
var count = 0, total = ((weekDate.end - weekDate.start) / (1000 * 60 * 60 * 24)) + 1;
for (b = 0; b < total; b++) {
if (obj.monthDays.indexOf(weekDate.start.getTime() + (1000 * 60 * 60 * 24 * b)) != -1) count++;
}
$tr += "<td colspan='" + count + "' style='padding:5px;border-left:1px solid #c3c3c3;border-bottom:1px solid #c3c3c3;text-align: center;'>" + weekNumber + "</td>";
weekFirst = new Date(weekDate.end.getTime() + (1000 * 60 * 60 * 24));
}
$tr += "</tr>";
$($tr).insertBefore(obj.element.find(".e-headerdays").find("tr:first"));
obj.element.find(".cusRow").children().first().css("border-left","none");
obj.refreshScroller();
}
}
</Code>
Regards,
Karthigeyan