Get the number of days in the specified month and year in CSharp

using System;//from  ww w . j a va2s  . c o  m

class Example
{
  static void Main()
  {
    const int July = 7;
    const int Feb = 2;

    int daysInJuly = System.DateTime.DaysInMonth(2001, July);
        Console.WriteLine(daysInJuly);

    // daysInFeb gets 28 because the year 1998 was not a leap year. 
    int daysInFeb = System.DateTime.DaysInMonth(1998, Feb);
        Console.WriteLine(daysInFeb);

    // daysInFebLeap gets 29 because the year 1996 was a leap year. 
    int daysInFebLeap = System.DateTime.DaysInMonth(1996, Feb);
    Console.WriteLine(daysInFebLeap);
  }
}