Calculate week days between two dates (Excluding Sat & Sun)

int getWeekdays(DateTime dtmStart, DateTime dtmEnd)
{
// This function includes the start and end date if it falls on a weekday
int dowStart = ((int)dtmStart.DayOfWeek == 0 ? 7 : (int)dtmStart.DayOfWeek);
int dowEnd = ((int)dtmEnd.DayOfWeek == 0 ? 7 : (int)dtmEnd.DayOfWeek);
TimeSpan tSpan = dtmEnd - dtmStart;
if (dowStart <= dowEnd) { return (((tSpan.Days / 7) * 5) + Math.Max((Math.Min((dowEnd + 1), 6) - dowStart), 0)); } else { return (((tSpan.Days / 7) * 5) + Math.Min((dowEnd + 6) - Math.Min(dowStart, 6), 5)); } }