DateTime.TryParse不同的结果 [英] DateTime.TryParse different results
问题描述
作为应用程序单元测试的一部分,我检查了一些日期时间字符串以获取其解析能力。我最近注意到一台机器上的字符串 0-02-20 11:36
可以解析为 {2000-02-20 11: 36:00}
通过 DateTime.TryParse(dateString,outsparedTimeStamp)
而在其他计算机上则不能。
As part of my unittests for an application I check a few datetime strings for their ability to get parsed. I recently noticed that on one machine the string "0-02-20 11:36"
can get parsed to {2000-02-20 11:36:00}
by DateTime.TryParse(dateString, out parsedTimeStamp)
while on other machines it can't.
string dt = "0-02-20 11:36";
DateTime parsedTimeStamp;
DateTime.TryParse(dateString, out parsedTimeStamp);
Console.WriteLine(parsedTimeStamp);
推荐答案
解析 DateTime 与框架中的所有解析一样,code>是与文化相关的。
我认为在特殊的机器上,文化设置使用 yyyy-MM-dd
格式,而在其他计算机上,日期格式为 MM-dd-yyyy
。
I would assume that on the exceptional machine, the culture settings use a yyyy-MM-dd
format, while on the other machines, the date format was MM-dd-yyyy
.
要解决此问题,您可以解析特定的文化或使用不变文化。
To work around this, you can parse in a specific culture or using an invariant culture.
DateTime.TryParse(dateString, CultureInfo.InvariantCulture, DateTimeStyles.None, out parsedTimeStamp);
事实证明其中有很多文化:
It turns out there are quite a few of these cultures:
foreach (var c in CultureInfo.GetCultures(CultureTypes.AllCultures))
{
if (c.DateTimeFormat.ShortDatePattern == "yyyy-MM-dd")
{
Console.WriteLine("{0}: {1}", c.DisplayName, c.DateTimeFormat.ShortDatePattern);
}
}
Korean: yyyy-MM-dd
Polish: yyyy-MM-dd
Albanian: yyyy-MM-dd
Swedish: yyyy-MM-dd
Khmer: yyyy-MM-dd
Sinhala: yyyy-MM-dd
Korean (Korea): yyyy-MM-dd
Polish (Poland): yyyy-MM-dd
Albanian (Albania): yyyy-MM-dd
Swedish (Sweden): yyyy-MM-dd
Khmer (Cambodia): yyyy-MM-dd
Sinhala (Sri Lanka): yyyy-MM-dd
Sami, Northern (Sweden): yyyy-MM-dd
French (Canada): yyyy-MM-dd
Sami, Lule (Sweden): yyyy-MM-dd
Sami, Southern (Sweden): yyyy-MM-dd
Sami (Southern): yyyy-MM-dd
Sami (Lule): yyyy-MM-dd
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