如何检查datatable中的varchar格式日期 [英] how to check varchar format date in datatable

问题描述

如何检查数据表中的varchar格式日期在C＃

how to check varchar format date in datatable In C#

推荐答案

不要将日期存储为字符串：它会导致大量问题，从用户输入的格式是什么？通过我如何比较价值？ 我的应用程序中显示的是什么格式？



使用DateTime列 - 尽早将用户输入转换为DateTime，并将其转换为一个字符串尽可能晚。在这两者之间，一切都会在没有你担心的情况下运作。

Don't store dates as strings: it causes an enormous number of problems, starting with "which format did the user enter this in?" through "How do I compare values?" to "What format is this displaying in in my application?"

Use a DateTime column - convert the user input to a DateTime as early as possible, and convert it to a string as late as possible. In between, everything will just work without you havign to worry about it.

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