How can I dynamically pass values to the DayOfWeek array given below?

I have this below code:

var onMondayAndTuesday = DailyTimeIntervalScheduleBuilder.Create()
                     .OnDaysOfTheWeek(new DayOfWeek[] { DayOfWeek.Monday, DayOfWeek.Tuesday });

                    var trigger = TriggerBuilder.Create()
                                                .StartAt(DateBuilder.DateOf(StartHour, StartMinute, StartSeconds, StartDate, StartMonth, StartYear))
                                                .WithSchedule(onMondayAndTuesday)
                                                .WithCalendarIntervalSchedule(x => x.WithIntervalInWeeks(Int32.Parse(nWeekInterval)))
                                                .EndAt(DateBuilder.DateOf(0, 0, 0, EndDay, EndMonth, EndYear))
                                                .WithIdentity(triggerKey)
                                                .Build();

Here depending on the days users have selected any weekday would be passed in to the DaysOfWeek array. It might be just monday or monday and friday etc. How can I achieve this? Please advice.

---

mayooran99