IndexOf

DayTypeCollection.IndexOf method

Determines the index of the specified item in this collection.

public int IndexOf(DayType item)
ParameterTypeDescription
itemDayTypethe specified item to locate in this collection.

Return Value

the index of the specified item if found; otherwise, -1.

Examples

Shows how to use a week day collection to define weekly calendar exception.

var project = new Project(DataDir + "WeeklyDayTypeException.mpp");
var calendar = project.Calendars.GetByUid(1);

foreach (var calendarException in calendar.Exceptions)
{
    Console.WriteLine("Exception Name: " + calendarException.Name);
    Console.WriteLine("Days of week count: " + calendarException.DaysOfWeek.Count);
    foreach (var dayType in calendarException.DaysOfWeek)
    {
        Console.WriteLine("Day type: " + dayType);
    }

    Console.WriteLine();
}

var exc1 = calendar.Exceptions.ToList()[0];
if (!exc1.DaysOfWeek.IsReadOnly && exc1.DaysOfWeek.IndexOf(DayType.Monday) < 0)
{
    exc1.DaysOfWeek.Insert(0, DayType.Wednesday);
}

var exc2 = calendar.Exceptions.ToList()[1];
if (exc2.DaysOfWeek.Contains(DayType.Sunday))
{
    // delete a day type from "Exception 2" by day type
    exc2.DaysOfWeek.Remove(DayType.Sunday);
}

// delete a day type from "Exception 2" by index
Console.WriteLine("Remove " + exc2.DaysOfWeek[0] + " day type from exception by index...");
exc2.DaysOfWeek.RemoveAt(0);

// Change exceptions (there is no exceptions in initial project data)
var exc4 = new CalendarException
               {
                   Name = "Weekly Exception 2",
                   FromDate = new DateTime(2020, 4, 13),
                   ToDate = new DateTime(2020, 4, 18),
                   Occurrences = 3,
                   Type = CalendarExceptionType.Weekly
               };
exc4.DaysOfWeek.Add(DayType.Monday);
exc4.DaysOfWeek.Add(DayType.Thursday);

calendar.Exceptions.Add(exc4);

var exc3 = calendar.Exceptions.ToList()[2];

// remove all days of week for "Exception 3"
exc3.DaysOfWeek.Clear();

var dayTypes = new DayType[exc4.DaysOfWeek.Count];
exc4.DaysOfWeek.CopyTo(dayTypes, 0);

foreach (var dayType in dayTypes)
{
    exc3.DaysOfWeek.Add(dayType);
}

Console.WriteLine("Days of week for exception: " + exc3.Name);
foreach (var dayType in exc3.DaysOfWeek)
{
    Console.WriteLine("Day type: " + dayType);
}

See Also

GetEnumerator Insert