如何知道一个DateTime是DATERANGE之间在C＃ [英] How to know if a DateTime is between a DateRange in C#

问题描述

我需要知道，如果日期是DATERANGE之间。我有三个日期：

I need to know if a Date is between a DateRange. I have three dates:

// The date range
DateTime startDate;
DateTime endDate;

DateTime dateToCheck;

最简单的办法是做一个比较，但有一个更聪明的方式做到这一点？

The easy solution is doing a comparison, but is there a smarter way to do this?

在此先感谢。

推荐答案

不，做一个简单的比较，对我来说很好：

Nope, doing a simple comparison looks good to me:

return dateToCheck >= startDate && dateToCheck < endDate;

事情要考虑，虽然：

Things to think about though:

• 的DateTime 是一个有些奇怪的类型时区的条款。这可能是UTC，也可能是本地，也可能是不明确的。确保你比较苹果与苹果，因为它是。
• 在考虑你的起点和终点是否应包括或不包括。我做了code以上将其作为一个包容性的下界和上界。

• DateTime is a somewhat odd type in terms of time zones. It could be UTC, it could be "local", it could be ambiguous. Make sure you're comparing apples with apples, as it were.
• Consider whether your start and end points should be inclusive or exclusive. I've made the code above treat it as an inclusive lower bound and an exclusive upper bound.

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