c＃中的日期格式异常无效 [英] Invalid date format exception in c#

问题描述

我的要求是编写一个可以接受两种日期格式的代码，即yyyymmddhhmmss和yyyymmdd。我已经编写了代码，但是它的工作时间很少，但并非适用于所有。

My requirement was to write a code that can accept two type of date format i.e yyyymmddhhmmss and yyyymmdd. I have written the code but it is working for few date but not for all.

string[] formats = { "yyyymmdd","yyyymmddhhmmss" };
            bool valid = true;

if (!DateTime.TryParseExact(DesiredReportVersionDate, formats, new CultureInfo("en-US"), DateTimeStyles.None, out timevalue))
            {

                valid = false;
                throw new Exception("invalid format" + timevalue);
            }

但是，通过19901212033047价值是例外。根据我的理解，它应该是有效的。



请帮忙。



提前谢谢

However,passing 19901212033047 value is giving exception.It should be valid as per my understanding.

Please help.

Thanks in advance

推荐答案

问题应该是你使用的m（小m）也是月份和分钟。

它应该是M（大写M）月份和m（小m）分钟......

The problem should be that you using m (small m) for month and minute also.
It should be M (capital M) for month and m (small m) for minute...

string[] formats = { "yyyyMMdd","yyyyMMddhhmmss" };

更改格式字符串

Change the format strings from

string[] formats = { "yyyymmdd","yyyymmddhhmmss" };
            bool valid = true;

to

to

string[] formats = { "yyyyMMdd","yyyyMMddhhmmss" };
            bool valid = true;

MM =月

mm =分钟。



如果你想24，请用HH而不是hh小时时间。

MM = month
mm = minutes.

use HH instead of hh if you want 24 hour time.

我从一些帮助中得到了这个。



使用这个yyyyMMddHHmmss。因为它是区分大小的



谢谢

I got this from some help.

use this yyyyMMddHHmmss. Because it's case sensitive

Thanks

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