正则表达式来检查，如果字符串格式和QUOT; YYYY / MM / DD"是一个有效的日期，包括月份界限 [英] Regex that checks if string in format "yyyy/mm/dd" is a valid date, including month bounds

问题描述

我想验证在C＃中的日期格式为YYYY / MM / DD。它甚至有可能（使用正则表达式）来验证，有没有30天月？

I am trying to validate a date in c# in the format "yyyy/mm/dd". Is it even possible (using regex) to validate that there aren't 30 days in February?

推荐答案

这是可能的正则表达式来做到这一点，但是这将是极其复杂的。我很舒服编写正则表达式，但我不会使用该解决方案来验证日期。

It is possible to do this with a regex, but it would be incredibly complex. I am quite comfortable writing regular expressions, but I would not use that solution to validate dates.

这是更易于使用另一种解决方案，用于验证的日期。有适用于所有编程语言日期验证组件。我不是.NET的用户，但与快速搜索我找到的DateTime 类，这似乎做到这一点。

It's much simpler to use another solution for validating dates. There are date-validation components available for every programming language. I'm not a user of .NET, but with a quick search I find the DateTime class, which seems to do this.

请参阅.NET Framework开发人员指南，解析日期和时间字符串。

See .NET Framework Developer's Guide, "Parsing Date and Time Strings."

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