DateTimeFormatInfo.LongDatePattern 屬性

參考

定義

命名空間:: System.Globalization

組件:: System.Globalization.dll

組件:: System.Runtime.dll

組件:: mscorlib.dll

組件:: netstandard.dll

來源:: DateTimeFormatInfo.cs

來源:: DateTimeFormatInfo.cs

來源:: DateTimeFormatInfo.cs

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

取得或設定完整日期值的自訂格式字串。

public:
 property System::String ^ LongDatePattern { System::String ^ get(); void set(System::String ^ value); };

public string LongDatePattern { get; set; }

member this.LongDatePattern : string with get, set

Public Property LongDatePattern As String

屬性值

String

完整日期值的自訂格式字串。

例外狀況

ArgumentNullException

此屬性設定為 null。

InvalidOperationException

正在設定屬性，而且 DateTimeFormatInfo 物件為唯讀。

範例

下列範例會顯示幾個文化特性的 LongDatePattern 屬性值。

using namespace System;
using namespace System::Globalization;
void PrintPattern( String^ myCulture )
{
   CultureInfo^ MyCI = gcnew CultureInfo( myCulture,false );
   DateTimeFormatInfo^ myDTFI = MyCI->DateTimeFormat;
   Console::WriteLine( " {0} {1}", myCulture, myDTFI->LongDatePattern );
}

int main()
{
   
   // Displays the values of the pattern properties.
   Console::WriteLine( " CULTURE    PROPERTY VALUE" );
   PrintPattern( "en-US" );
   PrintPattern( "ja-JP" );
   PrintPattern( "fr-FR" );
}

/*
This code produces the following output:

CULTURE    PROPERTY VALUE
en-US     dddd, MMMM dd, yyyy
ja-JP     yyyy'年'M'月'd'日'
fr-FR     dddd d MMMM yyyy

*/

using System;
using System.Globalization;

public class SamplesDTFI  {

   public static void Main()  {

      // Displays the values of the pattern properties.
      Console.WriteLine( " CULTURE    PROPERTY VALUE" );
      PrintPattern( "en-US" );
      PrintPattern( "ja-JP" );
      PrintPattern( "fr-FR" );
   }

   public static void PrintPattern( String myCulture )  {

      DateTimeFormatInfo myDTFI = new CultureInfo( myCulture, false ).DateTimeFormat;
      Console.WriteLine( "  {0}     {1}", myCulture, myDTFI.LongDatePattern );
   }
}

/*
This code produces the following output:

 CULTURE    PROPERTY VALUE
  en-US     dddd, MMMM d, yyyy
  ja-JP     yyyy'年'M'月'd'日'
  fr-FR     dddd d MMMM yyyy

*/

Imports System.Globalization

Public Class SamplesDTFI

   Public Shared Sub Main()

      ' Displays the values of the pattern properties.
      Console.WriteLine(" CULTURE    PROPERTY VALUE")
      PrintPattern("en-US")
      PrintPattern("ja-JP")
      PrintPattern("fr-FR")

   End Sub

   Public Shared Sub PrintPattern(myCulture As [String])

      Dim myDTFI As DateTimeFormatInfo = New CultureInfo(myCulture, False).DateTimeFormat
      Console.WriteLine("  {0}     {1}", myCulture, myDTFI.LongDatePattern)

   End Sub

End Class

'This code produces the following output:
'
' CULTURE    PROPERTY VALUE
'  en-US     dddd, MMMM d, yyyy
'  ja-JP     yyyy'年'M'月'd'日'
'  fr-FR     dddd d MMMM yyyy
'

備註

屬性 LongDatePattern 會定義呼叫 DateTime.ToString 和 DateTimeOffset.ToString 方法以及提供「D」標準格式字串之複合格式字串所傳回之日期字串的文化特性特定格式。下列範例說明下列之間的關聯性：「D」標準格式字串、屬性傳 LongDatePattern 回的自定義格式字串，以及日期的文化特性特定表示。

using System;
using System.Globalization;

public class Example
{
   public static void Main()
   {
      DateTime date1 = new DateTime(2011, 11, 12);
      string[] cultureNames = { "en-US", "fr-FR", "ru-RU", "de-DE" };
      Console.WriteLine("{0,-7} {1,-20} {2:D}\n", "Culture", "Long Date Pattern", "Date");
      foreach (var cultureName in cultureNames) {
         CultureInfo culture = CultureInfo.CreateSpecificCulture(cultureName);
         Console.WriteLine("{0,-7} {1,-20} {2}",
                           culture.Name,
                           culture.DateTimeFormat.LongDatePattern,
                           date1.ToString("D", culture));
      }
   }
}
// The example displays the following output:
//    Culture Long Date Pattern    Date
//
//    en-US   dddd, MMMM d, yyyy   Saturday, November 12, 2011
//    fr-FR   dddd d MMMM yyyy     samedi 12 novembre 2011
//    ru-RU   d MMMM yyyy 'г.'     12 ноября 2011 г.
//    de-DE   dddd, d. MMMM yyyy   Samstag, 12. November 2011

Imports System.Globalization

Module Example
   Public Sub Main()
      Dim date1 As Date = #11/12/2011#
      Dim cultureNames() As String = { "en-US", "fr-FR", "ru-RU", "de-DE" }
      Console.WriteLine("{0,-7} {1,-20} {2:D}", "Culture", "Long Date Pattern", "Date")
      Console.WriteLine()
      For Each cultureName In cultureNames
         Dim culture As CultureInfo = CultureInfo.CreateSpecificCulture(cultureName)
         Console.WriteLine("{0,-7} {1,-20} {2}", culture.Name, culture.DateTimeFormat.LongDatePattern, 
                           date1.ToString("D", culture))                 
      Next
   End Sub
End Module
' The example displays the following output:
'    Culture Long Date Pattern    Date
'
'    en-US   dddd, MMMM d, yyyy   Saturday, November 12, 2011
'    fr-FR   dddd d MMMM yyyy     samedi 12 novembre 2011
'    ru-RU   d MMMM yyyy 'г.'     12 ноября 2011 г.
'    de-DE   dddd, d. MMMM yyyy   Samstag, 12. November 2011

如需可結合的個別自定義格式規範，請參閱自定義日期和時間格式字元串，以建構自定義格式字串，例如「dddd， dd MMMM yyyy」。。

您應該將完整日期模式中的日期分隔符設定為確切字串，而不是使用日期分隔符佔位元。例如，若要取得MM-DD-yyyy模式，請將完整日期模式設定為「MM-DD-yyyy」。。

如果文化特性使用的行事曆變更，此屬性的值可能會變更。例如，下列範例示範當文化特性使用的物件變更時Calendar，代表阿拉伯文 (阿拉伯文) 文化特性之對象的屬性CultureInfo如何LongDatePattern變更。

using System;
using System.Globalization;
using System.IO;

public class Example
{
   public static void Main()
   {
      DateTime date1 = new DateTime(2011, 8, 7);
      CultureInfo ci = CultureInfo.CreateSpecificCulture("ar-SY");
      StreamWriter sw = new StreamWriter(@".\arSYCalendars.txt");

      sw.WriteLine("{0,-32} {1,-21} {2}\n",
                   "Calendar", "Long Date Pattern", "Example Date");
      foreach (var cal in ci.OptionalCalendars) {
         ci.DateTimeFormat.Calendar = cal;
         sw.WriteLine("{0,-32} {1,-21} {2}", GetCalendarName(cal),
                                             ci.DateTimeFormat.LongDatePattern,
                                             date1.ToString("D", ci));
      }
      sw.Close();
   }

   private static string GetCalendarName(Calendar cal)
   {
      string calName;
      calName = cal.GetType().Name.Substring(0, cal.GetType().Name.IndexOf("Cal"));
      if (calName.Equals("Gregorian")) {
         GregorianCalendar grCal = cal as GregorianCalendar;
         calName += String.Format("-{0}", grCal.CalendarType);
      }
      return calName;
   }
}
// The example generates the following output:
//    Calendar                         Long Date Pattern     Example Date
//
//    Gregorian-Localized              dd MMMM, yyyy         07 آب, 2011
//    UmAlQura                         dd/MMMM/yyyy          07/رمضان/1432
//    Hijri                            dd MMMM, yyyy         08 رمضان, 1432
//    Gregorian-USEnglish              dddd, MMMM dd, yyyy   Sunday, August 07, 2011
//    Gregorian-MiddleEastFrench       dddd, MMMM dd, yyyy   dimanche, août 07, 2011
//    Gregorian-TransliteratedEnglish  dddd, MMMM dd, yyyy   الأحد, أغسطس 07, 2011
//    Gregorian-TransliteratedFrench   dddd, MMMM dd, yyyy   الأحد, أوت 07, 2011

Imports System.Globalization
Imports System.IO

Module Example
   Public Sub Main()
      Dim date1 As Date = #8/7/2011#
      Dim ci As CultureInfo = CultureInfo.CreateSpecificCulture("ar-SY")
      Dim sw As New StreamWriter(".\arSYCalendars.txt") 

      sw.WriteLine("{0,-32} {1,-21} {2}", 
                   "Calendar", "Long Date Pattern", "Example Date")
      sw.WriteLine()
      For Each cal As Calendar In ci.OptionalCalendars
         ci.DateTimeFormat.Calendar = cal
         sw.WriteLine("{0,-32} {1,-21} {2}", GetCalendarName(cal), 
                                             ci.DateTimeFormat.LongDatePattern,
                                             date1.ToString("D", ci))
      Next     
      sw.Close()
   End Sub
   
   Private Function GetCalendarName(cal As Calendar) As String
      Dim calName As String
      calName = cal.GetType().Name.Substring(0, cal.GetType().Name.IndexOf("Cal"))
      If calName.Equals("Gregorian") Then
         Dim grCal As GregorianCalendar = DirectCast(cal, GregorianCalendar)
         calName += String.Format("-{0}", grCal.CalendarType)    
      End If
      Return calName
   End Function
End Module
' The example generates the following output:
'    Calendar                         Long Date Pattern     Example Date
'    
'    Gregorian-Localized              dd MMMM, yyyy         07 آب, 2011
'    UmAlQura                         dd/MMMM/yyyy          07/رمضان/1432
'    Hijri                            dd MMMM, yyyy         08 رمضان, 1432
'    Gregorian-USEnglish              dddd, MMMM dd, yyyy   Sunday, August 07, 2011
'    Gregorian-MiddleEastFrench       dddd, MMMM dd, yyyy   dimanche, août 07, 2011
'    Gregorian-TransliteratedEnglish  dddd, MMMM dd, yyyy   الأحد, أغسطس 07, 2011
'    Gregorian-TransliteratedFrench   dddd, MMMM dd, yyyy   الأحد, أوت 07, 2011

適用於

共用方式為

DateTimeFormatInfo.LongDatePattern 屬性

定義

屬性值

例外狀況

範例

備註

適用於

另請參閱

其他資源