asp.net下日期和时间处理的类库
导读：收集整理的这篇文章主要介绍了asp.net下日期和时间处理的类库，觉得挺不错的，现在分享给大家，也给大家做个参考。 复制代码 代码如下: using System; namespace...
收集整理的这篇文章主要介绍了asp.net下日期和时间处理的类库，觉得挺不错的，现在分享给大家，也给大家做个参考。 复制代码 代码如下: using System;
namespace UtilITies
{
/// summary>
/// Common DateTime Methods.
/// /summary>
///
public enum Quarter
{
First = 1,
Second = 2,
Third = 3,
Fourth = 4
}
public enum Month
{
January = 1,
February = 2,
MArch = 3,
APRil = 4,
May = 5,
June = 6,
July = 7,
August = 8,
September = 9,
October = 10,
November = 11,
December = 12
}
public class DateUtilities
{
#region Quarter
public static DateTime GetStartOfQuarter( int Year, Quarter Qtr )
{
if( Qtr == Quarter.First ) // 1st Quarter = January 1 to March 31
return new DateTime( Year, 1, 1, 0, 0, 0, 0 );
else if( Qtr == Quarter.Second ) // 2nd Quarter = April 1 to June 30
return new DateTime( Year, 4, 1, 0, 0, 0, 0 );
else if( Qtr == Quarter.Third ) // 3rd Quarter = July 1 to September 30
return new DateTime( Year, 7, 1, 0, 0, 0, 0 );
else // 4th Quarter = October 1 to December 31
return new DateTime( Year, 10, 1, 0, 0, 0, 0 );
}
public static DateTime GetEndOfQuarter( int Year, Quarter Qtr )
{
if( Qtr == Quarter.First ) // 1st Quarter = January 1 to March 31
return new DateTime( Year, 3, DateTime.DaysInMonth( Year, 3 ), 23, 59, 59, 999 );
else if( Qtr == Quarter.Second ) // 2nd Quarter = April 1 to June 30
return new DateTime( Year, 6, DateTime.DaysInMonth( Year, 6 ), 23, 59, 59, 999 );
else if( Qtr == Quarter.Third ) // 3rd Quarter = July 1 to September 30
return new DateTime( Year, 9, DateTime.DaysInMonth( Year, 9 ), 23, 59, 59, 999 );
else // 4th Quarter = October 1 to December 31
return new DateTime( Year, 12, DateTime.DaysInMonth( Year, 12 ), 23, 59, 59, 999 );
}
public static Quarter GetQuarter( Month month )
{
if( month = Month.March ) // 1st Quarter = January 1 to March 31
return Quarter.First;
else if( ( month > = Month.April ) & & ( month = Month.June ) ) // 2nd Quarter = April 1 to June 30
return Quarter.Second;
else if( ( month > = Month.July ) & & ( month = Month.September ) ) // 3rd Quarter = July 1 to September 30
return Quarter.Third;
else // 4th Quarter = October 1 to December 31
return Quarter.Fourth;
}
public static DateTime GetEndOfLastQuarter()
{
if( DateTime.Now.Month = (int)Month.March ) //go to last quarter of previous year
return GetEndOfQuarter( DateTime.Now.Year - 1, GetQuarter( Month.December ));
else //return last quarter of current year
return GetEndOfQuarter( DateTime.Now.Year, GetQuarter( (Month)DateTime.Now.Month));
}
public static DateTime GetStartOfLastQuarter()
{
if( DateTime.Now.Month = 3 ) //go to last quarter of previous year
return GetStartOfQuarter( DateTime.Now.Year - 1, GetQuarter( Month.December ));
else //return last quarter of current year
return GetStartOfQuarter( DateTime.Now.Year, GetQuarter( (Month)DateTime.Now.Month));
}
public static DateTime GetStartOfcurrentQuarter()
{
return GetStartOfQuarter( DateTime.Now.Year, GetQuarter( (Month)DateTime.Now.Month ));
}
public static DateTime GetEndOfCurrentQuarter()
{
return GetEndOfQuarter( DateTime.Now.Year, GetQuarter( (Month)DateTime.Now.Month ));
}
#endregion
#region Weeks
public static DateTime GetStartOfLastWeek()
{
int DaysToSuBTract = (int)DateTime.Now.DayOfWeek + 7;
DateTime dt = DateTime.Now.Subtract( System.TimeSpan.FromDays( DaysToSubtract ) );
return new DateTime( dt.Year, dt.Month, dt.Day, 0, 0, 0, 0 );
}
public static DateTime GetEndOfLastWeek()
{
DateTime dt = GetStartOfLastWeek().AddDays(6);
return new DateTime( dt.Year, dt.Month, dt.Day, 23, 59, 59, 999 );
}
public static DateTime GetStartOfCurrentWeek()
{
int DaysToSubtract = (int)DateTime.Now.DayOfWeek ;
DateTime dt = DateTime.Now.Subtract( System.TimeSpan.FromDays( DaysToSubtract ) );
return new DateTime( dt.Year, dt.Month, dt.Day, 0, 0, 0, 0 );
}
public static DateTime GetEndOfCurrentWeek()
{
DateTime dt = GetStartOfCurrentWeek().AddDays(6);
return new DateTime( dt.Year, dt.Month, dt.Day, 23, 59, 59, 999 );
}
#endregion
#region Months
public static DateTime GetStartOfMonth( int Month, int Year )
{
return new DateTime( Year, Month, 1, 0, 0, 0, 0 );
}
public static DateTime GetEndOfMonth( int Month, int Year )
{
return new DateTime( Year, Month, DateTime.DaysInMonth( Year, Month ), 23, 59, 59, 999 );
}
public static DateTime GetStartOfLastMonth()
{
if( DateTime.Now.Month == 1 )
return GetStartOfMonth( 12, DateTime.Now.Year - 1);
else
return GetStartOfMonth( DateTime.Now.Month -1, DateTime.Now.Year );
}
public static DateTime GetEndOfLastMonth()
{
if( DateTime.Now.Month == 1 )
return GetEndOfMonth( 12, DateTime.Now.Year - 1);
else
return GetEndOfMonth( DateTime.Now.Month -1, DateTime.Now.Year );
}
public static DateTime GetStartOfCurrentMonth()
{
return GetStartOfMonth( DateTime.Now.Month, DateTime.Now.Year );
}
public static DateTime GetEndOfCurrentMonth()
{
return GetEndOfMonth( DateTime.Now.Month, DateTime.Now.Year );
}
#endregion
#region Years
public static DateTime GetStartOfYear( int Year )
{
return new DateTime( Year, 1, 1, 0, 0, 0, 0 );
}
public static DateTime GetEndOfYear( int Year )
{
return new DateTime( Year, 12, DateTime.DaysInMonth( Year, 12 ), 23, 59, 59, 999 );
}
public static DateTime GetStartOfLastYear()
{
return GetStartOfYear( DateTime.Now.Year - 1 );
}
public static DateTime GetEndOfLastYear()
{
return GetEndOfYear( DateTime.Now.Year - 1 );
}
public static DateTime GetStartOfCurrentYear()
{
return GetStartOfYear( DateTime.Now.Year );
}
public static DateTime GetEndOfCurrentYear()
{
return GetEndOfYear( DateTime.Now.Year );
}
#endregion
#region Days
public static DateTime GetStartOfDay( DateTime date )
{
return new DateTime( date.Year, date.Month, date.Day, 0, 0, 0, 0 );
}
public static DateTime GetEndOfDay( DateTime date )
{
return new DateTime( date.Year, date.Month, date.Day, 23, 59, 59, 999 );
}
#endregion
}
}
您可能感兴趣的文章:
- asp.net(C#)实现功能强大的时间日期处理类完整实例
- ASP.NET生成两个日期范围内随机时间的实现方法
- asp.net 时间类 一周的周一和周末的日期
- Asp.net 时间操作基类(支持短日期,长日期,时间差)
- @L_512_5@
- js时间戳格式化成日期格式的多种方法
- Js 获取当前日期时间及其它操作实现代码
- JS 显示当前日期与时间的代码
- js时间戳转为日期格式的方法
- .Net与JS时间日期格式的转换问题对比分析
声明：本文内容由网友自发贡献，本站不承担相应法律责任。对本内容有异议或投诉，请联系2913721942#qq.com核实处理，我们将尽快回复您，谢谢合作！
若转载请注明出处： asp.net下日期和时间处理的类库
本文地址： https://pptw.com/jishu/594967.html