DateTimeFormatInfo.GetAllDateTimePatterns Methode

Definition

Gibt alle Standardmuster zurück, in denen Datums- und Zeitwerte formatiert werden können.Returns the standard patterns in which date and time values can be formatted.

Überlädt

GetAllDateTimePatterns()

Gibt alle Standardmuster zurück, in denen Datums- und Zeitwerte formatiert werden können.Returns all the standard patterns in which date and time values can be formatted.

GetAllDateTimePatterns(Char)

Gibt alle Muster zurück, in denen Datums- und Zeitwerte mit der angegebenen Standardformatzeichenfolge formatiert werden können.Returns all the patterns in which date and time values can be formatted using the specified standard format string.

GetAllDateTimePatterns()

Gibt alle Standardmuster zurück, in denen Datums- und Zeitwerte formatiert werden können.Returns all the standard patterns in which date and time values can be formatted.

public:
 cli::array <System::String ^> ^ GetAllDateTimePatterns();
public string[] GetAllDateTimePatterns ();
member this.GetAllDateTimePatterns : unit -> string[]
Public Function GetAllDateTimePatterns () As String()

Gibt zurück

String[]

Ein Array, das die Standardmuster enthält, in denen Datums- und Zeitwerte formatiert werden können.An array that contains the standard patterns in which date and time values can be formatted.

Beispiele

Im folgenden Beispiel werden die Datums-und Uhrzeit Format Zeichenfolgen für die invariante Kultur sowie die Ergebnis Zeichenfolge angezeigt, die erzeugt wird, wenn diese Format Zeichenfolge verwendet wird, um ein bestimmtes Datum zu formatieren.The following example displays the date and time format strings for the invariant culture, as well as the result string that is produced when that format string is used to format a particular date.

using System;
using System.Globalization;

public class Example
{
   public static void Main()
   {
      DateTime date = new DateTime(2014, 8, 28, 12, 28, 30);
      DateTimeFormatInfo invDTF = new DateTimeFormatInfo();
      String[] formats = invDTF.GetAllDateTimePatterns();

      Console.WriteLine("{0,-40} {1}\n", "Pattern", "Result String");
      foreach (var fmt in formats)
         Console.WriteLine("{0,-40} {1}", fmt, date.ToString(fmt));
   }
}
// The example displays the following output:
//    Pattern                                  Result String
//
//    MM/dd/yyyy                               08/28/2014
//    yyyy-MM-dd                               2014-08-28
//    dddd, dd MMMM yyyy                       Thursday, 28 August 2014
//    dddd, dd MMMM yyyy HH:mm                 Thursday, 28 August 2014 12:28
//    dddd, dd MMMM yyyy hh:mm tt              Thursday, 28 August 2014 12:28 PM
//    dddd, dd MMMM yyyy H:mm                  Thursday, 28 August 2014 12:28
//    dddd, dd MMMM yyyy h:mm tt               Thursday, 28 August 2014 12:28 PM
//    dddd, dd MMMM yyyy HH:mm:ss              Thursday, 28 August 2014 12:28:30
//    MM/dd/yyyy HH:mm                         08/28/2014 12:28
//    MM/dd/yyyy hh:mm tt                      08/28/2014 12:28 PM
//    MM/dd/yyyy H:mm                          08/28/2014 12:28
//    MM/dd/yyyy h:mm tt                       08/28/2014 12:28 PM
//    yyyy-MM-dd HH:mm                         2014-08-28 12:28
//    yyyy-MM-dd hh:mm tt                      2014-08-28 12:28 PM
//    yyyy-MM-dd H:mm                          2014-08-28 12:28
//    yyyy-MM-dd h:mm tt                       2014-08-28 12:28 PM
//    MM/dd/yyyy HH:mm:ss                      08/28/2014 12:28:30
//    yyyy-MM-dd HH:mm:ss                      2014-08-28 12:28:30
//    MMMM dd                                  August 28
//    MMMM dd                                  August 28
//    yyyy'-'MM'-'dd'T'HH':'mm':'ss.fffffffK   2014-08-28T12:28:30.0000000
//    yyyy'-'MM'-'dd'T'HH':'mm':'ss.fffffffK   2014-08-28T12:28:30.0000000
//    ddd, dd MMM yyyy HH':'mm':'ss 'GMT'      Thu, 28 Aug 2014 12:28:30 GMT
//    ddd, dd MMM yyyy HH':'mm':'ss 'GMT'      Thu, 28 Aug 2014 12:28:30 GMT
//    yyyy'-'MM'-'dd'T'HH':'mm':'ss            2014-08-28T12:28:30
//    HH:mm                                    12:28
//    hh:mm tt                                 12:28 PM
//    H:mm                                     12:28
//    h:mm tt                                  12:28 PM
//    HH:mm:ss                                 12:28:30
//    yyyy'-'MM'-'dd HH':'mm':'ss'Z'           2014-08-28 12:28:30Z
//    dddd, dd MMMM yyyy HH:mm:ss              Thursday, 28 August 2014 12:28:30
//    yyyy MMMM                                2014 August
//    yyyy MMMM                                2014 August
Imports System.Globalization

Module Example
   Public Sub Main()
      Dim date1 As Date = #08/28/2014 12:28:30PM#
      Dim invDTF As New DateTimeFormatInfo()
      Dim formats() As String = invDTF.GetAllDateTimePatterns()

      Console.WriteLine("{0,-40} {1}", "Pattern", "Result String")
      Console.WriteLine()
      For Each fmt In formats
         Console.WriteLine("{0,-40} {1}", fmt, date1.ToString(fmt))
      Next
   End Sub
End Module
' The example displays the following output:
'    Pattern                                  Result String
'
'    MM/dd/yyyy                               08/28/2014
'    yyyy-MM-dd                               2014-08-28
'    dddd, dd MMMM yyyy                       Thursday, 28 August 2014
'    dddd, dd MMMM yyyy HH:mm                 Thursday, 28 August 2014 12:28
'    dddd, dd MMMM yyyy hh:mm tt              Thursday, 28 August 2014 12:28 PM
'    dddd, dd MMMM yyyy H:mm                  Thursday, 28 August 2014 12:28
'    dddd, dd MMMM yyyy h:mm tt               Thursday, 28 August 2014 12:28 PM
'    dddd, dd MMMM yyyy HH:mm:ss              Thursday, 28 August 2014 12:28:30
'    MM/dd/yyyy HH:mm                         08/28/2014 12:28
'    MM/dd/yyyy hh:mm tt                      08/28/2014 12:28 PM
'    MM/dd/yyyy H:mm                          08/28/2014 12:28
'    MM/dd/yyyy h:mm tt                       08/28/2014 12:28 PM
'    yyyy-MM-dd HH:mm                         2014-08-28 12:28
'    yyyy-MM-dd hh:mm tt                      2014-08-28 12:28 PM
'    yyyy-MM-dd H:mm                          2014-08-28 12:28
'    yyyy-MM-dd h:mm tt                       2014-08-28 12:28 PM
'    MM/dd/yyyy HH:mm:ss                      08/28/2014 12:28:30
'    yyyy-MM-dd HH:mm:ss                      2014-08-28 12:28:30
'    MMMM dd                                  August 28
'    MMMM dd                                  August 28
'    yyyy'-'MM'-'dd'T'HH':'mm':'ss.fffffffK   2014-08-28T12:28:30.0000000
'    yyyy'-'MM'-'dd'T'HH':'mm':'ss.fffffffK   2014-08-28T12:28:30.0000000
'    ddd, dd MMM yyyy HH':'mm':'ss 'GMT'      Thu, 28 Aug 2014 12:28:30 GMT
'    ddd, dd MMM yyyy HH':'mm':'ss 'GMT'      Thu, 28 Aug 2014 12:28:30 GMT
'    yyyy'-'MM'-'dd'T'HH':'mm':'ss            2014-08-28T12:28:30
'    HH:mm                                    12:28
'    hh:mm tt                                 12:28 PM
'    H:mm                                     12:28
'    h:mm tt                                  12:28 PM
'    HH:mm:ss                                 12:28:30
'    yyyy'-'MM'-'dd HH':'mm':'ss'Z'           2014-08-28 12:28:30Z
'    dddd, dd MMMM yyyy HH:mm:ss              Thursday, 28 August 2014 12:28:30
'    yyyy MMMM                                2014 August
'    yyyy MMMM                                2014 August

Im Beispiel wird ein DateTimeFormatInfo -Objekt instanziiert, das die invariante Kultur durch Aufrufen des DateTimeFormatInfo -Konstruktors darstellt.The example instantiates a DateTimeFormatInfo object that represents the invariant culture by calling the DateTimeFormatInfo constructor. Es könnte auch eine DateTimeFormatInfo abgerufen werden, die die invariante Kultur aus der InvariantInfo -Eigenschaft darstellt.It could also retrieve a DateTimeFormatInfo that represents the invariant culture from the InvariantInfo property.

Hinweise

Diese Methode gibt ein Array zurück, das alle benutzerdefinierten Format Zeichenfolgen enthält, die Standardformat Zeichenfolgen entsprechen.This method returns an array that contains all custom format strings that correspond to standard format strings. Eine Liste der Standardformat Zeichenfolgen finden Sie unter Standardformat Zeichenfolgen für Datum und Uhrzeit .See Standard Date and Time Format Strings for a list of the standard format strings.

In Formatierungs Vorgängen können Sie die benutzerdefinierten Format Zeichenfolgen in dem von der GetAllDateTimePatterns -Methode zurückgegebenen Array verwenden.You can use the custom format strings in the array returned by the GetAllDateTimePatterns method in formatting operations. Wenn Sie dies jedoch tun, kann die Zeichen folgen Darstellung eines Datums-und Uhrzeitwerts, der in diesem Formatierungs Vorgang zurückgegeben wird Parse , TryParse nicht immer erfolgreich von den Methoden und analysiert werden.However, if you do, the string representation of a date and time value returned in that formatting operation cannot always be parsed successfully by the Parse and TryParse methods. Daher können Sie nicht davon ausgehen, dass die von der GetAllDateTimePatterns -Methode zurückgegebenen benutzerdefinierten Format Zeichenfolgen für Roundtrip-Datums-und Uhrzeitwerte verwendet werden können.Therefore, you cannot assume that the custom format strings returned by the GetAllDateTimePatterns method can be used to round-trip date and time values. Dieses Problem wird anhand des folgenden Beispiels veranschaulicht.The following example illustrates this problem. Es wird ein DateTimeFormatInfo -Objekt abgerufen, das Formatierungsinformationen für die Kultur Italien (Italienisch) enthält.It retrieves a DateTimeFormatInfo object that contains formatting information for the Italy (Italian) culture. Sie übergibt jede benutzerdefinierte Format Zeichenfolge in dem von GetAllDateTimePatterns() der-Methode DateTime.ToString(String) zurückgegebenen Array an die-Methode, um die Zeichen folgen Darstellung eines Datums und einer Uhrzeit zu erstellen.It passes each custom format string in the array returned by the GetAllDateTimePatterns() method to the DateTime.ToString(String) method to create the string representation of a date and time. In diesem Beispiel wird dann versucht, diesen Wert durch Aufrufen der DateTime.TryParse(String, DateTime) -Methode zu analysieren.This example then attempts to parse this value by calling the DateTime.TryParse(String, DateTime) method. Wie die Ausgabe des Beispiels zeigt, ergeben einige der benutzerdefinierten Format Zeichenfolgen keinen Datums-und Uhrzeitwert, der erfolgreich Roundtrips durchgeführt hat.As the output from the example shows, some of the custom format strings do not produce a date and time value that successfully round-trips.

using System;
using System.Globalization;

public class Example
{
   public static void Main()
   {
      CultureInfo culture = CultureInfo.CreateSpecificCulture("it-IT");
      DateTime date1 = new DateTime(2011, 02, 01, 7, 30, 45, 0);
      DateTime date2;
      int total = 0;
      int noRoundTrip = 0;
      
      foreach (var fmt in culture.DateTimeFormat.GetAllDateTimePatterns()) {
         total += 1;
         if (! DateTime.TryParse(date1.ToString(fmt), out date2)) {
            noRoundTrip++;
            Console.WriteLine("Unable to parse {0:" + fmt + "} (format '{1}')", 
                              date1, fmt);
         }             
      }
      Console.WriteLine("\nUnable to round-trip {0} of {1} format strings.",
                        noRoundTrip, total);
                        
   }
}
// The example displays the following output:
//    Unable to parse Tuesday 1 February 2011 7.30 (format 'dddd d MMMM yyyy H.mm')
//    Unable to parse Tuesday 1 February 2011 07.30 (format 'dddd d MMMM yyyy HH.mm')
//    Unable to parse 1-Feb-11 7.30 (format 'd-MMM-yy H.mm')
//    Unable to parse 1-Feb-11 07.30 (format 'd-MMM-yy HH.mm')
//    Unable to parse 1 February 2011 7.30 (format 'd MMMM yyyy H.mm')
//    Unable to parse 1 February 2011 07.30 (format 'd MMMM yyyy HH.mm')
//    Unable to parse Tuesday 1 February 2011 7.30.45 (format 'dddd d MMMM yyyy H.mm.ss')
//    Unable to parse Tuesday 1 February 2011 07.30.45 (format 'dddd d MMMM yyyy HH.mm.ss')
//    Unable to parse 1-Feb-11 7.30.45 (format 'd-MMM-yy H.mm.ss')
//    Unable to parse 1-Feb-11 07.30.45 (format 'd-MMM-yy HH.mm.ss')
//    Unable to parse 1 February 2011 7.30.45 (format 'd MMMM yyyy H.mm.ss')
//    Unable to parse 1 February 2011 07.30.45 (format 'd MMMM yyyy HH.mm.ss')
//    Unable to parse 01/02/2011 7.30 (format 'dd/MM/yyyy H.mm')
//    Unable to parse 01/02/2011 07.30 (format 'dd/MM/yyyy HH.mm')
//    Unable to parse 01/Feb/2011 7.30 (format 'dd/MMM/yyyy H.mm')
//    Unable to parse 01/Feb/2011 07.30 (format 'dd/MMM/yyyy HH.mm')
//    Unable to parse 01/02/11 7.30 (format 'dd/MM/yy H.mm')
//    Unable to parse 01/02/11 07.30 (format 'dd/MM/yy HH.mm')
//    Unable to parse 01.2.11 7.30 (format 'dd.M.yy H.mm')
//    Unable to parse 01.2.11 07.30 (format 'dd.M.yy HH.mm')
//    Unable to parse 1/2/11 7.30 (format 'd/M/yy H.mm')
//    Unable to parse 1/2/11 07.30 (format 'd/M/yy HH.mm')
//    Unable to parse 2011-02-01 7.30 (format 'yyyy-MM-dd H.mm')
//    Unable to parse 2011-02-01 07.30 (format 'yyyy-MM-dd HH.mm')
//    Unable to parse 01/02/2011 7.30.45 (format 'dd/MM/yyyy H.mm.ss')
//    Unable to parse 01/02/2011 07.30.45 (format 'dd/MM/yyyy HH.mm.ss')
//    Unable to parse 01/Feb/2011 7.30.45 (format 'dd/MMM/yyyy H.mm.ss')
//    Unable to parse 01/Feb/2011 07.30.45 (format 'dd/MMM/yyyy HH.mm.ss')
//    Unable to parse 01/02/11 7.30.45 (format 'dd/MM/yy H.mm.ss')
//    Unable to parse 01/02/11 07.30.45 (format 'dd/MM/yy HH.mm.ss')
//    Unable to parse 01.2.11 7.30.45 (format 'dd.M.yy H.mm.ss')
//    Unable to parse 01.2.11 07.30.45 (format 'dd.M.yy HH.mm.ss')
//    Unable to parse 1/2/11 7.30.45 (format 'd/M/yy H.mm.ss')
//    Unable to parse 1/2/11 07.30.45 (format 'd/M/yy HH.mm.ss')
//    Unable to parse 2011-02-01 7.30.45 (format 'yyyy-MM-dd H.mm.ss')
//    Unable to parse 2011-02-01 07.30.45 (format 'yyyy-MM-dd HH.mm.ss')
//    Unable to parse Tuesday 1 February 2011 7.30.45 (format 'dddd d MMMM yyyy H.mm.ss')
//    Unable to parse Tuesday 1 February 2011 07.30.45 (format 'dddd d MMMM yyyy HH.mm.ss')
//    Unable to parse 1-Feb-11 7.30.45 (format 'd-MMM-yy H.mm.ss')
//    Unable to parse 1-Feb-11 07.30.45 (format 'd-MMM-yy HH.mm.ss')
//    Unable to parse 1 February 2011 7.30.45 (format 'd MMMM yyyy H.mm.ss')
//    Unable to parse 1 February 2011 07.30.45 (format 'd MMMM yyyy HH.mm.ss')
//    
//    Unable to round-trip 42 of 98 format strings.
Imports System.Globalization

Module Example
   Public Sub Main()
      Dim culture As CultureInfo = CultureInfo.CreateSpecificCulture("it-IT")
      Dim date1 = New DateTime(2011, 02, 01, 7, 30, 45, 0)
      Dim date2 As DateTime
      Dim total, noRoundTrip As Integer
      
      For Each fmt In culture.DateTimeFormat.GetAllDateTimePatterns()
         total += 1
         If Not DateTime.TryParse(date1.ToString(fmt), date2)
            noRoundTrip += 1
            Console.WriteLine("Unable to parse {0:" + fmt + "} (format '{1}')", 
                              date1, fmt)
         End If             
      Next
      Console.WriteLine()
      Console.WriteLine("Unable to round-trip {0} of {1} format strings.",
                        noRoundTrip, total)
   End Sub
End Module
' The example displays the following output:
'    Unable to parse Tuesday 1 February 2011 7.30 (format 'dddd d MMMM yyyy H.mm')
'    Unable to parse Tuesday 1 February 2011 07.30 (format 'dddd d MMMM yyyy HH.mm')
'    Unable to parse 1-Feb-11 7.30 (format 'd-MMM-yy H.mm')
'    Unable to parse 1-Feb-11 07.30 (format 'd-MMM-yy HH.mm')
'    Unable to parse 1 February 2011 7.30 (format 'd MMMM yyyy H.mm')
'    Unable to parse 1 February 2011 07.30 (format 'd MMMM yyyy HH.mm')
'    Unable to parse Tuesday 1 February 2011 7.30.45 (format 'dddd d MMMM yyyy H.mm.ss')
'    Unable to parse Tuesday 1 February 2011 07.30.45 (format 'dddd d MMMM yyyy HH.mm.ss')
'    Unable to parse 1-Feb-11 7.30.45 (format 'd-MMM-yy H.mm.ss')
'    Unable to parse 1-Feb-11 07.30.45 (format 'd-MMM-yy HH.mm.ss')
'    Unable to parse 1 February 2011 7.30.45 (format 'd MMMM yyyy H.mm.ss')
'    Unable to parse 1 February 2011 07.30.45 (format 'd MMMM yyyy HH.mm.ss')
'    Unable to parse 01/02/2011 7.30 (format 'dd/MM/yyyy H.mm')
'    Unable to parse 01/02/2011 07.30 (format 'dd/MM/yyyy HH.mm')
'    Unable to parse 01/Feb/2011 7.30 (format 'dd/MMM/yyyy H.mm')
'    Unable to parse 01/Feb/2011 07.30 (format 'dd/MMM/yyyy HH.mm')
'    Unable to parse 01/02/11 7.30 (format 'dd/MM/yy H.mm')
'    Unable to parse 01/02/11 07.30 (format 'dd/MM/yy HH.mm')
'    Unable to parse 01.2.11 7.30 (format 'dd.M.yy H.mm')
'    Unable to parse 01.2.11 07.30 (format 'dd.M.yy HH.mm')
'    Unable to parse 1/2/11 7.30 (format 'd/M/yy H.mm')
'    Unable to parse 1/2/11 07.30 (format 'd/M/yy HH.mm')
'    Unable to parse 2011-02-01 7.30 (format 'yyyy-MM-dd H.mm')
'    Unable to parse 2011-02-01 07.30 (format 'yyyy-MM-dd HH.mm')
'    Unable to parse 01/02/2011 7.30.45 (format 'dd/MM/yyyy H.mm.ss')
'    Unable to parse 01/02/2011 07.30.45 (format 'dd/MM/yyyy HH.mm.ss')
'    Unable to parse 01/Feb/2011 7.30.45 (format 'dd/MMM/yyyy H.mm.ss')
'    Unable to parse 01/Feb/2011 07.30.45 (format 'dd/MMM/yyyy HH.mm.ss')
'    Unable to parse 01/02/11 7.30.45 (format 'dd/MM/yy H.mm.ss')
'    Unable to parse 01/02/11 07.30.45 (format 'dd/MM/yy HH.mm.ss')
'    Unable to parse 01.2.11 7.30.45 (format 'dd.M.yy H.mm.ss')
'    Unable to parse 01.2.11 07.30.45 (format 'dd.M.yy HH.mm.ss')
'    Unable to parse 1/2/11 7.30.45 (format 'd/M/yy H.mm.ss')
'    Unable to parse 1/2/11 07.30.45 (format 'd/M/yy HH.mm.ss')
'    Unable to parse 2011-02-01 7.30.45 (format 'yyyy-MM-dd H.mm.ss')
'    Unable to parse 2011-02-01 07.30.45 (format 'yyyy-MM-dd HH.mm.ss')
'    Unable to parse Tuesday 1 February 2011 7.30.45 (format 'dddd d MMMM yyyy H.mm.ss')
'    Unable to parse Tuesday 1 February 2011 07.30.45 (format 'dddd d MMMM yyyy HH.mm.ss')
'    Unable to parse 1-Feb-11 7.30.45 (format 'd-MMM-yy H.mm.ss')
'    Unable to parse 1-Feb-11 07.30.45 (format 'd-MMM-yy HH.mm.ss')
'    Unable to parse 1 February 2011 7.30.45 (format 'd MMMM yyyy H.mm.ss')
'    Unable to parse 1 February 2011 07.30.45 (format 'd MMMM yyyy HH.mm.ss')
'    
'    Unable to round-trip 42 of 98 format strings.

Zum Analysieren der Zeichen folgen Darstellung einer Datums-und uhrzeitanzahl, die in einer Reihe von vordefinierten benutzerdefinierten Formaten ausgedrückt werden kann, müssen Sie eine der folgenden Methoden aufzurufen:To parse the string representation of a date and time that can be expressed in a number of predefined custom formats, call one of the following methods:

Die benutzerdefinierten Format Zeichenfolgen in dem von GetAllDateTimePatterns der-Methode zurückgegebenen Array hängen vom aktuellen Kalender der Kultur DateTimeFormatInfo ab, für die das Objekt Formatierungsinformationen bereitstellt.The custom format strings in the array returned by the GetAllDateTimePatterns method depends on the current calendar of the culture for which the DateTimeFormatInfo object supplies formatting information. Wenn sich der Kalender ändert, ändert sich auch das von dieser Methode zurückgegebene Array.If the calendar changes, the array returned by this method also changes.

Siehe auch

GetAllDateTimePatterns(Char)

Gibt alle Muster zurück, in denen Datums- und Zeitwerte mit der angegebenen Standardformatzeichenfolge formatiert werden können.Returns all the patterns in which date and time values can be formatted using the specified standard format string.

public:
 cli::array <System::String ^> ^ GetAllDateTimePatterns(char format);
public string[] GetAllDateTimePatterns (char format);
member this.GetAllDateTimePatterns : char -> string[]
Public Function GetAllDateTimePatterns (format As Char) As String()

Parameter

format
Char

Eine Standardformatzeichenfolge.A standard format string.

Gibt zurück

String[]

Ein Array mit den Standardmustern, in denen Datums- und Uhrzeit-Werte mit der angegebenen Formatzeichenfolge formatiert werden können.An array containing the standard patterns in which date and time values can be formatted using the specified format string.

Ausnahmen

format ist keine gültige Standard-Formatzeichenfolge.format is not a valid standard format string.

Beispiele

Im folgenden Beispiel werden die Datums-und Uhrzeit Muster für den aktuellen Kalender angezeigt.The following example displays the date and time patterns for the current calendar.

#using <System.dll>

using namespace System;
using namespace System::Globalization;
public ref class SamplesDateTimeFormatInfo
{
public:
   static void Main()
   {
      
      // Creates a new DateTimeFormatinfo.
      DateTimeFormatInfo^ myDtfi = gcnew DateTimeFormatInfo;
      
      // Gets and prints all the patterns
      array<String^>^myPatternsArray = myDtfi->GetAllDateTimePatterns();
      Console::WriteLine(  "ALL the patterns:" );
      PrintIndexAndValues( myPatternsArray );
      
      // Gets and prints the pattern(s) associated with some of the format characters.
      myPatternsArray = myDtfi->GetAllDateTimePatterns( 'd' );
      Console::WriteLine(  "The patterns for 'd':" );
      PrintIndexAndValues( myPatternsArray );
      myPatternsArray = myDtfi->GetAllDateTimePatterns( 'D' );
      Console::WriteLine(  "The patterns for 'D':" );
      PrintIndexAndValues( myPatternsArray );
      myPatternsArray = myDtfi->GetAllDateTimePatterns( 'f' );
      Console::WriteLine(  "The patterns for 'f':" );
      PrintIndexAndValues( myPatternsArray );
      myPatternsArray = myDtfi->GetAllDateTimePatterns( 'F' );
      Console::WriteLine(  "The patterns for 'F':" );
      PrintIndexAndValues( myPatternsArray );
      myPatternsArray = myDtfi->GetAllDateTimePatterns( 'r' );
      Console::WriteLine(  "The patterns for 'r':" );
      PrintIndexAndValues( myPatternsArray );
      myPatternsArray = myDtfi->GetAllDateTimePatterns( 'R' );
      Console::WriteLine(  "The patterns for 'R':" );
      PrintIndexAndValues( myPatternsArray );
   }

    public:
       static void PrintIndexAndValues( array<String^>^myArray )  {
       int i = 0;
       for each ( String^ s in myArray )
           Console::WriteLine( "\t[{0}]:\t{1}", i++, s );
       Console::WriteLine();
    }
};

int main()
{
   SamplesDateTimeFormatInfo::Main();
}

/* 
This code produces the following output.

ALL the patterns:
        [0]:    MM/dd/yyyy
        [1]:    dddd, dd MMMM yyyy
        [2]:    dddd, dd MMMM yyyy HH:mm
        [3]:    dddd, dd MMMM yyyy hh:mm tt
        [4]:    dddd, dd MMMM yyyy H:mm
        [5]:    dddd, dd MMMM yyyy h:mm tt
        [6]:    dddd, dd MMMM yyyy HH:mm:ss
        [7]:    MM/dd/yyyy HH:mm
        [8]:    MM/dd/yyyy hh:mm tt
        [9]:    MM/dd/yyyy H:mm
        [10]:   MM/dd/yyyy h:mm tt
        [11]:   MM/dd/yyyy HH:mm:ss
        [12]:   MMMM dd
        [13]:   MMMM dd
        [14]:   ddd, dd MMM yyyy HH':'mm':'ss 'GMT'
        [15]:   ddd, dd MMM yyyy HH':'mm':'ss 'GMT'
        [16]:   yyyy'-'MM'-'dd'T'HH':'mm':'ss
        [17]:   HH:mm
        [18]:   hh:mm tt
        [19]:   H:mm
        [20]:   h:mm tt
        [21]:   HH:mm:ss
        [22]:   yyyy'-'MM'-'dd HH':'mm':'ss'Z'
        [23]:   dddd, dd MMMM yyyy HH:mm:ss
        [24]:   yyyy MMMM
        [25]:   yyyy MMMM

The patterns for 'd':
        [0]:    MM/dd/yyyy

The patterns for 'D':
        [0]:    dddd, dd MMMM yyyy

The patterns for 'f':
        [0]:    dddd, dd MMMM yyyy HH:mm
        [1]:    dddd, dd MMMM yyyy hh:mm tt
        [2]:    dddd, dd MMMM yyyy H:mm
        [3]:    dddd, dd MMMM yyyy h:mm tt

The patterns for 'F':
        [0]:    dddd, dd MMMM yyyy HH:mm:ss

The patterns for 'r':
        [0]:    ddd, dd MMM yyyy HH':'mm':'ss 'GMT'

The patterns for 'R':
        [0]:    ddd, dd MMM yyyy HH':'mm':'ss 'GMT'
*/
 using System;
 using System.Globalization;
 public class SamplesDateTimeFormatInfo  {
 
    public static void Main()  {
 
       // Creates a new DateTimeFormatinfo.
       DateTimeFormatInfo myDtfi = new DateTimeFormatInfo();
 
       // Gets and prints all the patterns.
       String[] myPatternsArray = myDtfi.GetAllDateTimePatterns();
       Console.WriteLine( "ALL the patterns:" );
       PrintIndexAndValues( myPatternsArray );
 
       // Gets and prints the pattern(s) associated with some of the format characters.
       myPatternsArray = myDtfi.GetAllDateTimePatterns('d');
       Console.WriteLine( "The patterns for 'd':" );
       PrintIndexAndValues( myPatternsArray );
 
       myPatternsArray = myDtfi.GetAllDateTimePatterns('D');
       Console.WriteLine( "The patterns for 'D':" );
       PrintIndexAndValues( myPatternsArray );
 
       myPatternsArray = myDtfi.GetAllDateTimePatterns('f');
       Console.WriteLine( "The patterns for 'f':" );
       PrintIndexAndValues( myPatternsArray );
 
       myPatternsArray = myDtfi.GetAllDateTimePatterns('F');
       Console.WriteLine( "The patterns for 'F':" );
       PrintIndexAndValues( myPatternsArray );
 
       myPatternsArray = myDtfi.GetAllDateTimePatterns('r');
       Console.WriteLine( "The patterns for 'r':" );
       PrintIndexAndValues( myPatternsArray );
 
       myPatternsArray = myDtfi.GetAllDateTimePatterns('R');
       Console.WriteLine( "The patterns for 'R':" );
       PrintIndexAndValues( myPatternsArray );
    }
 
    public static void PrintIndexAndValues( String[] myArray )  {
       int i = 0;
       foreach ( String s in myArray )
          Console.WriteLine( "\t[{0}]:\t{1}", i++, s );
       Console.WriteLine();
    }
 }


/* 
This code produces the following output.

ALL the patterns:
        [0]:    MM/dd/yyyy
        [1]:    dddd, dd MMMM yyyy
        [2]:    dddd, dd MMMM yyyy HH:mm
        [3]:    dddd, dd MMMM yyyy hh:mm tt
        [4]:    dddd, dd MMMM yyyy H:mm
        [5]:    dddd, dd MMMM yyyy h:mm tt
        [6]:    dddd, dd MMMM yyyy HH:mm:ss
        [7]:    MM/dd/yyyy HH:mm
        [8]:    MM/dd/yyyy hh:mm tt
        [9]:    MM/dd/yyyy H:mm
        [10]:   MM/dd/yyyy h:mm tt
        [11]:   MM/dd/yyyy HH:mm:ss
        [12]:   MMMM dd
        [13]:   MMMM dd
        [14]:   ddd, dd MMM yyyy HH':'mm':'ss 'GMT'
        [15]:   ddd, dd MMM yyyy HH':'mm':'ss 'GMT'
        [16]:   yyyy'-'MM'-'dd'T'HH':'mm':'ss
        [17]:   HH:mm
        [18]:   hh:mm tt
        [19]:   H:mm
        [20]:   h:mm tt
        [21]:   HH:mm:ss
        [22]:   yyyy'-'MM'-'dd HH':'mm':'ss'Z'
        [23]:   dddd, dd MMMM yyyy HH:mm:ss
        [24]:   yyyy MMMM
        [25]:   yyyy MMMM

The patterns for 'd':
        [0]:    MM/dd/yyyy

The patterns for 'D':
        [0]:    dddd, dd MMMM yyyy

The patterns for 'f':
        [0]:    dddd, dd MMMM yyyy HH:mm
        [1]:    dddd, dd MMMM yyyy hh:mm tt
        [2]:    dddd, dd MMMM yyyy H:mm
        [3]:    dddd, dd MMMM yyyy h:mm tt

The patterns for 'F':
        [0]:    dddd, dd MMMM yyyy HH:mm:ss

The patterns for 'r':
        [0]:    ddd, dd MMM yyyy HH':'mm':'ss 'GMT'

The patterns for 'R':
        [0]:    ddd, dd MMM yyyy HH':'mm':'ss 'GMT'
*/

Imports System.Globalization

Public Class SamplesDateTimeFormatInfo    
    
    Public Shared Sub Main()
        
        ' Creates a new DateTimeFormatinfo.
        Dim myDtfi As New DateTimeFormatInfo()
        
        ' Gets and prints all the patterns.
        Dim myPatternsArray As String() = myDtfi.GetAllDateTimePatterns()
        Console.WriteLine("ALL the patterns:")
        PrintIndexAndValues(myPatternsArray)
        
        ' Gets and prints the pattern(s) associated with some of the format characters.
        myPatternsArray = myDtfi.GetAllDateTimePatterns("d"c)
        Console.WriteLine("The patterns for 'd':")
        PrintIndexAndValues(myPatternsArray)
        
        myPatternsArray = myDtfi.GetAllDateTimePatterns("D"c)
        Console.WriteLine("The patterns for 'D':")
        PrintIndexAndValues(myPatternsArray)
        
        myPatternsArray = myDtfi.GetAllDateTimePatterns("f"c)
        Console.WriteLine("The patterns for 'f':")
        PrintIndexAndValues(myPatternsArray)
        
        myPatternsArray = myDtfi.GetAllDateTimePatterns("F"c)
        Console.WriteLine("The patterns for 'F':")
        PrintIndexAndValues(myPatternsArray)
        
        myPatternsArray = myDtfi.GetAllDateTimePatterns("r"c)
        Console.WriteLine("The patterns for 'r':")
        PrintIndexAndValues(myPatternsArray)
        
        myPatternsArray = myDtfi.GetAllDateTimePatterns("R"c)
        Console.WriteLine("The patterns for 'R':")
        PrintIndexAndValues(myPatternsArray)
    End Sub
    
    
    Public Shared Sub PrintIndexAndValues(myArray() As String)
        Dim i As Integer = 0
        Dim s As String
        For Each s In  myArray
            Console.WriteLine(ControlChars.Tab + "[{0}]:" + ControlChars.Tab _
               + "{1}", i, s)
            i += 1
        Next s
        Console.WriteLine()
    End Sub
End Class


' This code produces the following output.
'
' ALL the patterns:
' 	[0]:	MM/dd/yyyy
' 	[1]:	dddd, dd MMMM yyyy
' 	[2]:	dddd, dd MMMM yyyy HH:mm
' 	[3]:	dddd, dd MMMM yyyy hh:mm tt
' 	[4]:	dddd, dd MMMM yyyy H:mm
' 	[5]:	dddd, dd MMMM yyyy h:mm tt
' 	[6]:	dddd, dd MMMM yyyy HH:mm:ss
' 	[7]:	MM/dd/yyyy HH:mm
' 	[8]:	MM/dd/yyyy hh:mm tt
' 	[9]:	MM/dd/yyyy H:mm
' 	[10]:	MM/dd/yyyy h:mm tt
' 	[11]:	MM/dd/yyyy HH:mm:ss
' 	[12]:	MMMM dd
' 	[13]:	MMMM dd
' 	[14]:	ddd, dd MMM yyyy HH':'mm':'ss 'GMT'
' 	[15]:	ddd, dd MMM yyyy HH':'mm':'ss 'GMT'
' 	[16]:	yyyy'-'MM'-'dd'T'HH':'mm':'ss
' 	[17]:	HH:mm
' 	[18]:	hh:mm tt
' 	[19]:	H:mm
' 	[20]:	h:mm tt
' 	[21]:	HH:mm:ss
' 	[22]:	yyyy'-'MM'-'dd HH':'mm':'ss'Z'
' 	[23]:	dddd, dd MMMM yyyy HH:mm:ss
' 	[24]:	yyyy MMMM
' 	[25]:	yyyy MMMM
' 
' The patterns for 'd':
' 	[0]:	MM/dd/yyyy
' 
' The patterns for 'D':
' 	[0]:	dddd, dd MMMM yyyy
' 
' The patterns for 'f':
' 	[0]:	dddd, dd MMMM yyyy HH:mm
' 	[1]:	dddd, dd MMMM yyyy hh:mm tt
' 	[2]:	dddd, dd MMMM yyyy H:mm
' 	[3]:	dddd, dd MMMM yyyy h:mm tt
' 
' The patterns for 'F':
' 	[0]:	dddd, dd MMMM yyyy HH:mm:ss
' 
' The patterns for 'r':
' 	[0]:	ddd, dd MMM yyyy HH':'mm':'ss 'GMT'
' 
' The patterns for 'R':
' 	[0]:	ddd, dd MMM yyyy HH':'mm':'ss 'GMT'
' 

Hinweise

Diese Methode gibt ein Array mit den benutzerdefinierten Format Zeichenfolgen zurück, die einer bestimmten Standardformat Zeichenfolge entsprechen.This method returns an array containing the custom format strings that correspond to a particular standard format string. Eine Liste der Standardformat Zeichenfolgen finden Sie unter Standardformat Zeichenfolgen für Datum und Uhrzeit .See Standard Date and Time Format Strings for a list of the standard format strings.

In Formatierungs Vorgängen können Sie die benutzerdefinierten Format Zeichenfolgen in dem von der GetAllDateTimePatterns -Methode zurückgegebenen Array verwenden.You can use the custom format strings in the array returned by the GetAllDateTimePatterns method in formatting operations. Wenn Sie dies jedoch tun, kann die Zeichen folgen Darstellung eines Datums-und Uhrzeitwerts, der in diesem Formatierungs Vorgang zurückgegeben wird Parse , TryParse nicht immer erfolgreich von den Methoden und analysiert werden.However, if you do, the string representation of a date and time value returned in that formatting operation cannot always be parsed successfully by the Parse and TryParse methods. Daher können Sie nicht davon ausgehen, dass die von der GetAllDateTimePatterns -Methode zurückgegebenen benutzerdefinierten Format Zeichenfolgen für Roundtrip-Datums-und Uhrzeitwerte verwendet werden können.Therefore, you cannot assume that the custom format strings returned by the GetAllDateTimePatterns method can be used to round-trip date and time values. Dieses Problem wird anhand des folgenden Beispiels veranschaulicht.The following example illustrates this problem. Es wird ein DateTimeFormatInfo -Objekt abgerufen, das Formatierungsinformationen für die Kultur Russisch (Russisch) enthält.It retrieves a DateTimeFormatInfo object that contains formatting information for the Russia (Russian) culture. Sie ruft die GetAllDateTimePatterns(Char) -Methode für jede Standardformat Zeichenfolge auf und übergibt dann jede benutzerdefinierte Format Zeichenfolge DateTime.ToString(String) im zurückgegebenen Array an die-Methode, um die Zeichen folgen Darstellung eines Datums und einer Uhrzeit zu erstellen.It calls the GetAllDateTimePatterns(Char) method for each standard format string, and then passes each custom format string in the returned array to the DateTime.ToString(String) method to create the string representation of a date and time. In diesem Beispiel wird dann versucht, diesen Wert durch Aufrufen der DateTime.TryParse(String, DateTime) -Methode zu analysieren.This example then attempts to parse this value by calling the DateTime.TryParse(String, DateTime) method. Wie die Ausgabe des Beispiels zeigt, ergeben einige der benutzerdefinierten Format Zeichenfolgen keinen Datums-und Uhrzeitwert, der erfolgreich Roundtrips durchgeführt hat.As the output from the example shows, some of the custom format strings do not produce a date and time value that successfully round-trips.

using System;
using System.Globalization;

public class Example
{
   public static void Main()
   {
      CultureInfo culture = CultureInfo.CreateSpecificCulture("ru-RU");
      char[] formats = { 'd', 'D', 'f', 'F', 'g', 'G', 'm', 'o', 
                           'r', 's', 't', 'T', 'u', 'U', 'y' };
      DateTime date1 = new DateTime(2011, 02, 01, 7, 30, 45, 0);
      DateTime date2;
      int total = 0;
      int noRoundTrip = 0;

      foreach (var fmt in formats) {
         total = 0; 
         noRoundTrip = 0;
         foreach (var pattern in culture.DateTimeFormat.GetAllDateTimePatterns(fmt)) {
            total++;
            if (! DateTime.TryParse(date1.ToString(pattern), out date2)) {
               noRoundTrip++;
               Console.WriteLine("Unable to parse {0:" + pattern + "} (format '{1}')", 
                                 date1, pattern);
            }             
         }
         if (noRoundTrip > 0)
            Console.WriteLine("{0}: Unable to round-trip {1} of {2} format strings.\n",
                              fmt, noRoundTrip, total);
         else
            Console.WriteLine("{0}: All custom format strings round trip.\n", fmt);
      }
   }
}
// The example displays the following output:
//    d: All custom format strings round trip.
//    
//    Unable to parse 1 February 2011 г. (format 'd MMMM yyyy 'г.'')
//    Unable to parse 01 February 2011 г. (format 'dd MMMM yyyy 'г.'')
//    D: Unable to round-trip 2 of 2 format strings.
//    
//    Unable to parse 1 February 2011 г. 7:30 (format 'd MMMM yyyy 'г.' H:mm')
//    Unable to parse 1 February 2011 г. 07:30 (format 'd MMMM yyyy 'г.' HH:mm')
//    Unable to parse 01 February 2011 г. 7:30 (format 'dd MMMM yyyy 'г.' H:mm')
//    Unable to parse 01 February 2011 г. 07:30 (format 'dd MMMM yyyy 'г.' HH:mm')
//    f: Unable to round-trip 4 of 4 format strings.
//    
//    Unable to parse 1 February 2011 г. 7:30:45 (format 'd MMMM yyyy 'г.' H:mm:ss')
//    Unable to parse 1 February 2011 г. 07:30:45 (format 'd MMMM yyyy 'г.' HH:mm:ss')
//    Unable to parse 01 February 2011 г. 7:30:45 (format 'dd MMMM yyyy 'г.' H:mm:ss')
//    Unable to parse 01 February 2011 г. 07:30:45 (format 'dd MMMM yyyy 'г.' HH:mm:ss')
//    F: Unable to round-trip 4 of 4 format strings.
//    
//    g: All custom format strings round trip.
//    
//    G: All custom format strings round trip.
//    
//    m: All custom format strings round trip.
//    
//    o: All custom format strings round trip.
//    
//    r: All custom format strings round trip.
//    
//    s: All custom format strings round trip.
//    
//    t: All custom format strings round trip.
//    
//    T: All custom format strings round trip.
//    
//    u: All custom format strings round trip.
//    
//    Unable to parse 1 February 2011 г. 7:30:45 (format 'd MMMM yyyy 'г.' H:mm:ss')
//    Unable to parse 1 February 2011 г. 07:30:45 (format 'd MMMM yyyy 'г.' HH:mm:ss')
//    Unable to parse 01 February 2011 г. 7:30:45 (format 'dd MMMM yyyy 'г.' H:mm:ss')
//    Unable to parse 01 February 2011 г. 07:30:45 (format 'dd MMMM yyyy 'г.' HH:mm:ss')
//    U: Unable to round-trip 4 of 4 format strings.
//    
//    y: All custom format strings round trip.
Imports System.Globalization

Module Example
   Public Sub Main()
      Dim culture As CultureInfo = CultureInfo.CreateSpecificCulture("ru-RU")
      Dim formats() As String = { "d", "D", "f", "F", "g", "G", "m",
                                  "o", "r", "s", "t", "T", "u", "U", "y" }
      Dim date1 = New DateTime(2011, 02, 01, 7, 30, 45, 0)
      Dim date2 As DateTime
      Dim total, noRoundTrip As Integer

      For Each fmt In formats
         total = 0 : noRoundTrip = 0
         For Each pattern In culture.DateTimeFormat.GetAllDateTimePatterns(CChar(fmt))
            total += 1
            If Not DateTime.TryParse(date1.ToString(pattern), date2)
               noRoundTrip += 1
               Console.WriteLine("Unable to parse {0:" + pattern + "} (format '{1}')", 
                                 date1, pattern)
            End If             
         Next
         If noRoundTrip > 0 Then
            Console.WriteLine("{0}: Unable to round-trip {1} of {2} format strings.",
                              fmt, noRoundTrip, total)
            Console.WriteLine()
         Else
            Console.WriteLine("{0}: All custom format strings round trip.", fmt)
            Console.WriteLine()
         End If
      Next
   End Sub
End Module
' The example displays the following output:
'    d: All custom format strings round trip.
'    
'    Unable to parse 1 February 2011 г. (format 'd MMMM yyyy 'г.'')
'    Unable to parse 01 February 2011 г. (format 'dd MMMM yyyy 'г.'')
'    D: Unable to round-trip 2 of 2 format strings.
'    
'    Unable to parse 1 February 2011 г. 7:30 (format 'd MMMM yyyy 'г.' H:mm')
'    Unable to parse 1 February 2011 г. 07:30 (format 'd MMMM yyyy 'г.' HH:mm')
'    Unable to parse 01 February 2011 г. 7:30 (format 'dd MMMM yyyy 'г.' H:mm')
'    Unable to parse 01 February 2011 г. 07:30 (format 'dd MMMM yyyy 'г.' HH:mm')
'    f: Unable to round-trip 4 of 4 format strings.
'    
'    Unable to parse 1 February 2011 г. 7:30:45 (format 'd MMMM yyyy 'г.' H:mm:ss')
'    Unable to parse 1 February 2011 г. 07:30:45 (format 'd MMMM yyyy 'г.' HH:mm:ss')
'    Unable to parse 01 February 2011 г. 7:30:45 (format 'dd MMMM yyyy 'г.' H:mm:ss')
'    Unable to parse 01 February 2011 г. 07:30:45 (format 'dd MMMM yyyy 'г.' HH:mm:ss')
'    F: Unable to round-trip 4 of 4 format strings.
'    
'    g: All custom format strings round trip.
'    
'    G: All custom format strings round trip.
'    
'    m: All custom format strings round trip.
'    
'    o: All custom format strings round trip.
'    
'    r: All custom format strings round trip.
'    
'    s: All custom format strings round trip.
'    
'    t: All custom format strings round trip.
'    
'    T: All custom format strings round trip.
'    
'    u: All custom format strings round trip.
'    
'    Unable to parse 1 February 2011 г. 7:30:45 (format 'd MMMM yyyy 'г.' H:mm:ss')
'    Unable to parse 1 February 2011 г. 07:30:45 (format 'd MMMM yyyy 'г.' HH:mm:ss')
'    Unable to parse 01 February 2011 г. 7:30:45 (format 'dd MMMM yyyy 'г.' H:mm:ss')
'    Unable to parse 01 February 2011 г. 07:30:45 (format 'dd MMMM yyyy 'г.' HH:mm:ss')
'    U: Unable to round-trip 4 of 4 format strings.
'    
'    y: All custom format strings round trip.

Zum Analysieren der Zeichen folgen Darstellung einer Datums-und uhrzeitanzahl, die in einer Reihe von vordefinierten benutzerdefinierten Formaten ausgedrückt werden kann, müssen Sie eine der folgenden Methoden aufzurufen:To parse the string representation of a date and time that can be expressed in a number of predefined custom formats, call one of the following methods:

Die benutzerdefinierten Format Zeichenfolgen in dem von GetAllDateTimePatterns der-Methode zurückgegebenen Array hängen vom aktuellen Kalender der Kultur DateTimeFormatInfo ab, für die das Objekt Formatierungsinformationen bereitstellt.The custom format strings in the array returned by the GetAllDateTimePatterns method depends on the current calendar of the culture for which the DateTimeFormatInfo object supplies formatting information. Wenn sich der Kalender ändert, ändert sich auch das von dieser Methode zurückgegebene Array.If the calendar changes, the array returned by this method also changes.

Siehe auch

Gilt für: