WPF默认DateTime格式 [英] WPF Default DateTime format

问题描述

在处理大型WPF应用程序时，DateTime格式存在一些问题，这是一个庞大的代码库，许多地方未指定区域性。

Working on a large WPF application and having some issues with the DateTime format, it's a huge codebase and many places do not specify the culture.

当用户在Windows 7或8上打开应用程序时，日期时间格式有所不同（Win 7使用斜杠，Win 8使用破折号）。

When the user opens the application on Windows 7 or 8 the datetime format is different (Win 7 uses slashes and Win 8 uses dashes).

我尝试在应用程序启动中将文化设置为 en-US（请参见下面的链接），但似乎不起作用？
在WPF应用程序中全局设置文化（en-IN）

I tried setting the Culture to "en-US" in the Application Startup (see below link) but it doesn't seem work? Setting Culture (en-IN) Globally in WPF App

如何将WPF应用程序设置为不使用用户计算机的区域性？

How do I set my WPF application to not use the culture of the user machine?

推荐答案

这是我在 OnStartup 中使用的内容。它与您链接到的SO问题不同，因为我使用 DefaultThreadCurrentCulture ，因为它为整个过程和所有启动的线程设置了默认值。

Here is what I use in OnStartup. It's different than the SO question you linked to as I use DefaultThreadCurrentCulture as it sets the default for the entire process and any threads launched.

DefaultThreadCurrentCulture 和 DefaultThreadCurrentUICulture 在.NET 4.5和以后...

DefaultThreadCurrentCulture and DefaultThreadCurrentUICulture are in .NET 4.5 and later...

var newCulture = new CultureInfo(displayCulture);

// Set desired date format here
newCulture.DateTimeFormat.ShortDatePattern = "dd MMM yyyy";

// You cannot use DefaultThreadCurrentCulture and DefaultThreadCurrentUICulture if 
// you dont have .NET 4.5 or later. Just remove these two lines and pass the culture 
// to any new threads you create and set Thread.CurrentThread...
CultureInfo.DefaultThreadCurrentCulture = newCulture;
CultureInfo.DefaultThreadCurrentUICulture = newCulture;

Thread.CurrentThread.CurrentCulture = newCulture;
Thread.CurrentThread.CurrentUICulture = newCulture;

FrameworkElement.LanguageProperty.OverrideMetadata(
    typeof(FrameworkElement),
    new FrameworkPropertyMetadata(
        System.Windows.Markup.XmlLanguage.GetLanguage(CultureInfo.CurrentCulture.IetfLanguageTag)));

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