c#中国农历时间类

ＮＥＴ类库也提供一些基础的农历类System.Globalization.ChineseLunisolarCalendar。我改装了一下如DateTime时间形式。代码如下。实现了 公历农历转换的功能。但是只能算到1900~2100年之间的。基本够日常使用了。源代码如下。

using System;

using System.Collections.Generic;

using System.Text;

namespace System

...{

/**//// <summary>

/// 中国常用农历日期时间类

/// </summary>

class ChinaDateTime

...{

private int year, month, dayOfMonth;

private bool isLeap;

public DateTime time;

/**//// <summary>

/// 获取当前日期的农历年

/// </summary>

public int Year

...{

get ...{ return year; }

}

/**//// <summary>

/// 获取当前日期的农历月份

/// </summary>

public int Month

...{

get ...{ return month; }

}

/**//// <summary>

/// 获取当前日期的农历月中天数

/// </summary>

public int DayOfMonth

...{

get ...{ return dayOfMonth; }

}

/**//// <summary>

/// 获取当前日期是否为闰月中的日期

/// </summary>

public bool IsLeap

...{

get ...{ return isLeap; }

}

System.Globalization.ChineseLunisolarCalendar cc;

/**//// <summary>

/// 返回指定公历日期的阴历时间

/// </summary>

/// <param name="time"></param>

public ChinaDateTime(DateTime time)

...{

cc = new System.Globalization.ChineseLunisolarCalendar();

if (time > cc.MaxSupportedDateTime || time < cc.MinSupportedDateTime)

throw new Exception("参数日期时间不在支持的范围内,支持范围：" + cc.MinSupportedDateTime.ToShortDateString()+"到"+cc.MaxSupportedDateTime.ToShortDateString());

year = cc.GetYear(time);

month = cc.GetMonth(time);

dayOfMonth = cc.GetDayOfMonth(time);

isLeap = cc.IsLeapMonth(year, month);

if (isLeap) month -= 1;

this.time = time;

}

/**//// <summary>

/// 返回当前日前的农历日期。

/// </summary>

public static ChinaDateTime Now

...{

get ...{ return new ChinaDateTime(DateTime.Now); }

}

/**//// <summary>

/// 返回指定农历年，月，日，是否为闰月的农历日期时间

/// </summary>

/// <param name="Year"></param>

/// <param name="Month"></param>

/// <param name="DayOfMonth"></param>

/// <param name="IsLeap"></param>

public ChinaDateTime(int Year, int Month, int DayOfMonth, bool IsLeap)

...{

if (Year >= cc.MaxSupportedDateTime.Year || Year <= cc.MinSupportedDateTime.Year)

throw new Exception("参数年份时间不在支持的范围内,支持范围：" + cc.MinSupportedDateTime.ToShortDateString() + "到" + cc.MaxSupportedDateTime.ToShortDateString());

if (Month < 1 || Month > 12)

throw new Exception("月份必须在1~12范围");

cc = new System.Globalization.ChineseLunisolarCalendar();

if(cc.GetLeapMonth(Year)!=Month&&IsLeap)

throw new Exception("指定的月份不是当年的闰月");

if (cc.GetDaysInMonth(Year, IsLeap ? Month + 1 : Month) < DayOfMonth || DayOfMonth < 1)

throw new Exception("指定的月中的天数不在当前月天数有效范围");

year = Year;

month = Month;

dayOfMonth = DayOfMonth;

isLeap = IsLeap;

time = DateTime.Now;

}

/**//// <summary>

/// 获取当前农历日期的公历时间

/// </summary>

public DateTime ToDateTime()

...{

return cc.ToDateTime(year, isLeap ? month + 1 : month, dayOfMonth, time.Hour, time.Minute, time.Second, time.Millisecond);

}

/**//// <summary>

/// 获取指定农历时间对应的公历时间

/// </summary>

/// <param name="CnTime"></param>

/// <returns></returns>

public static DateTime ToDateTime(ChinaDateTime CnTime)

...{

return CnTime.ToDateTime();

}

/**//// <summary>

/// 获取指定公历时间转换为农历时间

/// </summary>

/// <param name="Time"></param>

/// <returns></returns>

public static ChinaDateTime ToChinaDateTime(DateTime Time)

...{

return new ChinaDateTime(Time);

}

/**//// <summary>