我知道我可以使用格式字符串,但我不想丢失日期/时间格式的特定于文化的表示。例如。
5/4/2011 | 2:06 PM | ...
应为05/04/2011 | 02:06 PM | ...
但是当我把它改变成不同的文化时,我希望它是
04.05.2011 | 14:06 | ...
而不改变格式字符串。这有可能吗?
发布于 2011-07-12 02:29:29
我只看到一个解决方案--您应该获取当前的区域性显示格式,对其进行修补以满足您的需求,最后使用修补后的格式字符串来格式化您的DateTime值。下面是一些示例代码:
string pattern = CultureInfo.CurrentCulture.DateTimeFormat.ShortDatePattern;
DateTime dt = DateTime.Now;
string[] format = pattern.Split(new string[] { CultureInfo.CurrentCulture.DateTimeFormat.DateSeparator }, StringSplitOptions.None);
string newPattern = string.Empty;
for(int i = 0; i < format.Length; i++) {
newPattern = newPattern + format[i];
if(format[i].Length == 1)
newPattern += format[i];
if(i != format.Length - 1)
newPattern += CultureInfo.CurrentCulture.DateTimeFormat.DateSeparator;
}
正如承诺的那样,以下是改进后的版本:
/// <summary>
/// Extensions for the <see cref="DateTime"/> class.
/// </summary>
public static class DateTimeExtensions
{
/// <summary>
/// Provides the same functionality as the ToShortDateString() method, but
/// with leading zeros.
/// <example>
/// ToShortDateString: 5/4/2011 |
/// ToShortDateStringZero: 05/04/2011
/// </example>
/// </summary>
/// <param name="source">Source date.</param>
/// <returns>Culture safe short date string with leading zeros.</returns>
public static string ToShortDateStringZero(this DateTime source)
{
return ToShortStringZero(source,
CultureInfo.CurrentCulture.DateTimeFormat.ShortDatePattern,
CultureInfo.CurrentCulture.DateTimeFormat.DateSeparator);
}
/// <summary>
/// Provides the same functionality as the ToShortTimeString() method, but
/// with leading zeros.
/// <example>
/// ToShortTimeString: 2:06 PM |
/// ToShortTimeStringZero: 02:06 PM
/// </example>
/// </summary>
/// <param name="source">Source date.</param>
/// <returns>Culture safe short time string with leading zeros.</returns>
public static string ToShortTimeStringZero(this DateTime source)
{
return ToShortStringZero(source,
CultureInfo.CurrentCulture.DateTimeFormat.ShortTimePattern,
CultureInfo.CurrentCulture.DateTimeFormat.TimeSeparator);
}
private static string ToShortStringZero(this DateTime source,
string pattern,
string seperator)
{
var format = pattern.Split(new[] {seperator}, StringSplitOptions.None);
var newPattern = string.Empty;
for (var i = 0; i < format.Length; i++)
{
newPattern = newPattern + format[i];
if (format[i].Length == 1)
newPattern += format[i];
if (i != format.Length - 1)
newPattern += seperator;
}
return source.ToString(newPattern, CultureInfo.InvariantCulture);
}
}
发布于 2011-07-12 02:54:07
您可以使用DateTimeFormatInfo.CurrentInfo
ShortDatePattern
和ShortTimePattern
进行转换:
// Change the culture to something different
Thread.CurrentThread.CurrentCulture = new CultureInfo("de-AT");
DateTime test_datetime = new DateTime(2008, 10, 2, 3, 22, 12);
string s_date = test_datetime.ToString(DateTimeFormatInfo.CurrentInfo);
// For specifically the short date and time
string s_date1 =
test_datetime.ToString(DateTimeFormatInfo.CurrentInfo.ShortDatePattern);
string s_time1 =
test_datetime.ToString(DateTimeFormatInfo.CurrentInfo.ShortTimePattern);
// Results
// s_date1 == 02.10.2008
// s_time1 == 03:22
发布于 2011-07-12 02:56:33
您还可以覆盖CurrentThread.CurrentCulture类。在程序开始时,您可以调用此方法:
private void FixCurrentDateFormat()
{
var cc = (System.Globalization.CultureInfo)System.Threading.Thread.CurrentThread.CurrentCulture.Clone();
var df = System.Threading.Thread.CurrentThread.CurrentCulture.DateTimeFormat;
df.FullDateTimePattern = PatchPattern(df.FullDateTimePattern);
df.LongDatePattern = PatchPattern(df.LongDatePattern);
df.ShortDatePattern = PatchPattern(df.ShortDatePattern);
//change any other patterns that you could use
//replace the current culture with the patched culture
System.Threading.Thread.CurrentThread.CurrentCulture = cc;
}
private string PatchPattern(string pattern)
{
//modify the pattern to your liking here
//in this example, I'm replacing "d" with "dd" and "M" with "MM"
var newPattern = Regex.Replace(pattern, @"\bd\b", "dd");
newPattern = Regex.Replace(newPattern, @"\bM\b", "MM");
return newPattern;
}
这样,在程序中将日期显示为字符串的任何地方,它都将具有新的格式。
https://stackoverflow.com/questions/6654695
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