public static IEnumerable <Offering> ActiveFlags(this Offering flag)
{
return(Enum.GetValues(typeof(Offering))
.Cast <Offering>()
.Where(o =>
o != Offering.NONE && o != Offering.ALL &&
flag.HasFlag(o)));
}
public static Offering FirstSemester(this Offering flag)
{
if (flag.HasFlag(Offering.FALL))
{
return(Offering.FALL);
}
if (flag.HasFlag(Offering.WINTER))
{
return(Offering.WINTER);
}
if (flag.HasFlag(Offering.SPRING))
{
return(Offering.SPRING);
}
if (flag.HasFlag(Offering.SUMMER))
{
return(Offering.SUMMER);
}
return(Offering.NONE);
}