获取过去和未来的datetimeoffset [英] Get past and future datetimeoffset

问题描述

使用offset属性获取过去2天和未来2天的记录。如果我过了2天我可以使用我的偏移属性这样的字符串偏移= -2，但如果我想使用过去和未来，如何计算？



提前谢谢。

Get past 2days and future 2days records using the offset property. If i get past 2day i can use my offset property something like this "string offset = -2", but if i want to use both past and future, how to calculate?

Thanks in advance.

推荐答案

您好，使用DateTime类的功能操作日期。

http://msdn.microsoft.com/en-us/library/system。 datetime.adddays（v = vs.110）.aspx [ ^ ]

Hello, to manipulate a date using the functions of DateTime class.
http://msdn.microsoft.com/en-us/library/system.datetime.adddays(v=vs.110).aspx[^]

DateTime now = Datetime.Now;
DateTime 2daysAgo = now.AddDays(-2);
DateTime 2daysLater = now.AddDays(2);

试试这个

Try this

int offset = 2 ;
          DateTime past = DateTime.Now.AddDays(-offset);
          DateTime future = DateTime.Now.AddDays(offset);

// required
using System.Linq;

// generate range: -2,-1,0,1,2
private IEnumerable<int> FourDays = Enumerable.Range(-2, 5);

// somewhere in a method

DateTime rightNow = DateTime.Now;

// test ...
foreach (var i in FourDays)
{
    // test ...
    Console.WriteLine(rightNow.AddDays(i));

    // call method to get Records
    // ...
}</int>

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