设置默认日期时间格式 c#

问题描述

有没有办法为整个应用程序设置或覆盖默认的 DateTime 格式.我正在用 C# .Net MVC 1.0 编写一个应用程序，并使用了很多泛型和反射.如果我可以将默认的 DateTime.ToString() 格式覆盖为dd-MMM-yyyy"，将会简单得多.当网站在不同的机器上运行时，我不希望这种格式发生变化.

Is there a way of setting or overriding the default DateTime format for an entire application. I am writing an app in C# .Net MVC 1.0 and use alot of generics and reflection. Would be much simpler if I could override the default DateTime.ToString() format to be "dd-MMM-yyyy". I do not want this format to change when the site is run on a different machine.

编辑 -只是为了澄清我的意思是专门调用 ToString，而不是其他扩展函数，这是因为反射/生成的代码.只更改 ToString 输出会更容易.

Edit - Just to clarify I mean specifically calling the ToString, not some other extension function, this is because of the reflection / generated code. Would be easier to just change the ToString output.

推荐答案

日期时间的默认格式"是:

The "default format" of a datetime is:

ShortDatePattern + ' ' + LongTimePattern

至少在当前 mono实施.如果您想显示类似 2001-02-03T04:05:06Z 的内容，即 ISO 8606，但在您的情况下不是大问题:

at least in the current mono implementation. This is particularly painful in case you want to display something like 2001-02-03T04:05:06Z i.e. the date and time combined as specified in ISO 8606, but not a big problem in your case:

using System;
using System.Globalization;
using System.Threading;

namespace test {
    public static class Program {
        public static void Main() {
            CultureInfo culture = (CultureInfo)CultureInfo.CurrentCulture.Clone();
            culture.DateTimeFormat.ShortDatePattern = "dd-MMM-yyyy";
            culture.DateTimeFormat.LongTimePattern = "";
            Thread.CurrentThread.CurrentCulture = culture;
            Console.WriteLine(DateTime.Now);
        }
    }
}

这将设置 ToString 在日期时间上的默认行为以返回您期望的格式.

This will set the default behavior of ToString on datetimes to return the format you expect.

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