Tutorial :Is there a .NET method equivalent to NETWORKDAYS in Excel?


I'm trying to do some date math in Visual Basic. The NETWORKDAYS function in Excel is exactly what I need. Is there an equivalent or similar method available in .NET?


Take a look at this:

private int CountWorkDays( DateTime startDate, DateTime endDate, List<DateTime> excludedDates )  {      int dayCount = 0;      int inc = 1;      bool endDateIsInPast = startDate > endDate;      DateTime tmpDate = startDate;      DateTime finiDate = endDate;        if( endDateIsInPast )      {          // Swap dates around          tmpDate = endDate;          finiDate = startDate;            // Set increment value to -1, so it DayCount decrements rather           // than increments          inc = -1;      }        while( tmpDate <= finiDate )      {          if( !excludedDates.Contains( tmpDate ) )          {              dayCount += inc;          }            // Move onto next day          tmpDate = tmpDate.AddDays( 1 );      }        return dayCount;  }  


Here you will have two articles as a good starting point:

Optimized Calculation Algorithm for Business Days


Business Dates Calculation


Not as far as I know, but it won't be too hard to come up with one.

Assuming Saturday and Sunday are off, you calculate the number of days in the month, iterate through the dates, subtract the number of days in the month if current date is Sunday or Saturday or it matches the value in the holidays array.

Note:If u also have question or solution just comment us below or mail us on toontricks1994@gmail.com
Next Post »