如何检查C＃DateTime是否在一个范围内 [英] How to check whether C# DateTime is within a range

问题描述

在C＃中，我有从和到 DateTime值，并且想检查一个值 DateTime是否在该范围内，我该怎么做这个？

In C# I have from and to DateTime vales and want to check whether a value DateTime is within the range, how can I do this?

lowerBound = "01-Dec-2011 09:45:58"
upperBound = "01-Dec-2011 09:38:58"
value = "01-Dec-2011 09:49:58"

推荐答案

只需使用比较运算符，就像使用数字：

Just use the comparison operators as you would for numbers:

DateTime lowerBound = new DateTime(2011, 12, 1, 9, 38, 58);
DateTime upperBound = new DateTime(2011, 12, 1, 9, 49, 58);
DateTime value = new DateTime(2011, 12, 1, 9, 45, 58);

// This is an inclusive lower bound and an exclusive upper bound.
// Adjust to taste.
if (lowerBound <= value && value < upperBound)

你我们需要注意的是，所有的值都是一样的（UTC，本地，非特定的）。如果您想要及时比较 instants （例如X在Y之前发生），最好使用UTC。

You'll need to be careful that the values are all the same "kind" (UTC, local, unspecific). If you're trying to compare instants in time, (e.g. "did X happen before Y") it's probably best to use UTC.

这篇关于如何检查C＃DateTime是否在一个范围内的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！