Days In Month - CSharp System

CSharp examples for System:DateTime Month

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Description

Days In Month

Demo Code


using System.Text;
using System.Linq;
using System.Collections.Generic;
using System;//www  .java 2s . c  o m

public class Main{
        public static int DaysInMonth(this DateTime dt, DayOfWeek dow)
        {
            return (dt.LastDayOfMonth(dow).Day - dt.FirstDayOfMonth(dow).Day) / 7 + 1;
        }
        public static int DaysInMonth(this DateTime dt)
        {
            return (dt.LastDayOfMonth() - dt.FirstDayOfMonth()).Days + 1;
        }
        public static DateTime FirstDayOfMonth(this DateTime dt, DayOfWeek dow)
        {
            return dt.FirstDayOfMonth().NextDay(dow, true);
        }
        public static DateTime FirstDayOfMonth(this DateTime dt)
        {
            return new DateTime(dt.Year, dt.Month, 1);
        }
        public static DateTime LastDayOfMonth(this DateTime dt, DayOfWeek dow)
        {
            return dt.LastDayOfMonth().PreviousDay(dow, true);
        }
        public static DateTime LastDayOfMonth(this DateTime dt)
        {
            return dt.FirstDayOfMonth().AddMonths(1).AddDays(-1);
        }
}

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