105 lines
3.4 KiB
C#
105 lines
3.4 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace Payroll.BO
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{
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public struct DateDifferenceInYearsMonthDays
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{
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private readonly int years;
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private readonly int months;
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private readonly int days;
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private readonly int hours;
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private readonly int minutes;
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private readonly int seconds;
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private readonly int milliseconds;
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public DateDifferenceInYearsMonthDays(int years, int months, int days, int hours, int minutes, int seconds, int milliseconds)
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{
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this.years = years;
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this.months = months;
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this.days = days;
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this.hours = hours;
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this.minutes = minutes;
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this.seconds = seconds;
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this.milliseconds = milliseconds;
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}
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public int Years { get { return years; } }
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public int Months { get { return months; } }
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public int Days { get { return days; } }
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public int Hours { get { return hours; } }
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public int Minutes { get { return minutes; } }
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public int Seconds { get { return seconds; } }
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public int Milliseconds { get { return milliseconds; } }
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enum Phase { Years, Months, Days, Done }
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public static DateDifferenceInYearsMonthDays CompareDates(DateTime date1, DateTime date2)
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{
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if (date2 < date1)
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{
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DateTime sub = date1;
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date1 = date2;
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date2 = sub;
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}
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DateTime current = date2;
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int years = 0;
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int months = 0;
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int days = 0;
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Phase phase = Phase.Years;
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DateDifferenceInYearsMonthDays span = new DateDifferenceInYearsMonthDays();
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while (phase != Phase.Done)
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{
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switch (phase)
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{
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case Phase.Years:
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if (current.Year == 1 || current.AddYears(-1) < date1)
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{
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phase = Phase.Months;
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}
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else
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{
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current = current.AddYears(-1);
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years++;
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}
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break;
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case Phase.Months:
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if (current.AddMonths(-1) < date1)
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{
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phase = Phase.Days;
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}
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else
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{
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current = current.AddMonths(-1);
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months++;
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}
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break;
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case Phase.Days:
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if (current.AddDays(-1) < date1)
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{
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days++;
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TimeSpan timespan = current - date1;
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span = new DateDifferenceInYearsMonthDays(years, months, days, timespan.Hours, timespan.Minutes, timespan.Seconds, timespan.Milliseconds);
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phase = Phase.Done;
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}
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else
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{
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current = current.AddDays(-1);
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days++;
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}
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break;
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}
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}
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return span;
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}
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}
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}
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