问题
For an application we develop, we use the "G" format everywhere in our application.
We want to change a little bit this format:
We need to display the first digit after the second.
Ex:
29.07.2014 08:54:36.1
We would like to be able to change this in the CurrentCulture.
It's the only thing we want to change in the current culture, so if before, we were having the following format:
2014/07/29 08:54:36 AM
We then want to have
2014/07/29 08:54:36.1 AM
If before I was having
29.07.2014 08:54:36
We then want to have
29.07.2014 08:54:36.1
A nice to have would be, that if the DateTime we receive, doesn't have a digit to be displayed here( =0 tenth of seconds), to don't have this displayed.
回答1:
You can set the CurrentCulture for the current thread and specify a deviating LongTimePattern:
CultureInfo culture = Thread.CurrentThread.CurrentCulture.Clone();
change the culture.DateTimeFormat.LongTimePattern = "your pattern";
Thread.CurrentThread.CurrentCulture = culture;
回答2:
I tested this and looks like is returning what you are looking for except for the "nice to have".
string now = DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss.f tt", CultureInfo.GetCultureInfo("en-US"));
回答3:
I'd create an extension method for DateTime, something like a ToPrettyPrintStringg() or whatever you wanna call it that returns the date in the format you wish, this way you can get it to display any date the way you want everywhere.
来源：https://stackoverflow.com/questions/25009870/modify-application-wide-the-display-of-datetime