Calculate the number of business days between two dates?

Question

In C#, how can I calculate the number of business (or weekdays) days between two dates?

Answer 1

I know this question is already solved, but I thought I could provide a more straightforward-looking answer that may help other visitors in the future.

Here's my take at it:

public int GetWorkingDays(DateTime from, DateTime to)
{
    var dayDifference = (int)to.Subtract(from).TotalDays;
    return Enumerable
        .Range(1, dayDifference)
        .Select(x => from.AddDays(x))
        .Count(x => x.DayOfWeek != DayOfWeek.Saturday && x.DayOfWeek != DayOfWeek.Sunday);
}

This was my original submission:

public int GetWorkingDays(DateTime from, DateTime to)
{
    var totalDays = 0;
    for (var date = from; date < to; date = date.AddDays(1))
    {
        if (date.DayOfWeek != DayOfWeek.Saturday
            && date.DayOfWeek != DayOfWeek.Sunday)
            totalDays++;
    }

    return totalDays;
}