CultureInfo.NumberFormat 属性

定义

命名空间:

System.Globalization

程序集:

System.Runtime.dll

Source:

CultureInfo.cs

获取或设置 NumberFormatInfo，它定义适合区域性的、显示数字、货币和百分比的格式。

public:
 virtual property System::Globalization::NumberFormatInfo ^ NumberFormat { System::Globalization::NumberFormatInfo ^ get(); void set(System::Globalization::NumberFormatInfo ^ value); };

public virtual System.Globalization.NumberFormatInfo NumberFormat { get; set; }

member this.NumberFormat : System.Globalization.NumberFormatInfo with get, set

Public Overridable Property NumberFormat As NumberFormatInfo

属性值

NumberFormatInfo

一个 NumberFormatInfo，它定义适合区域性的、显示数字、货币和百分比的格式。

例外

ArgumentNullException

该属性设置为 null。

InvalidOperationException

设置了 NumberFormat 属性或任意 NumberFormatInfo 属性，但 CultureInfo 为只读。

示例

下面的代码示例演示 CultureInfo.Clone 还克隆与 DateTimeFormatInfoCultureInfo关联的 和 NumberFormatInfo 实例。

using namespace System;
using namespace System::Globalization;
int main()
{
   
   // Creates and initializes a CultureInfo.
   CultureInfo^ myCI = gcnew CultureInfo( "en-US",false );
   
   // Clones myCI and modifies the DTFI and NFI instances associated with the clone.
   CultureInfo^ myCIclone = dynamic_cast<CultureInfo^>(myCI->Clone());
   myCIclone->DateTimeFormat->AMDesignator = "a.m.";
   myCIclone->DateTimeFormat->DateSeparator = "-";
   myCIclone->NumberFormat->CurrencySymbol = "USD";
   myCIclone->NumberFormat->NumberDecimalDigits = 4;
   
   // Displays the properties of the DTFI and NFI instances associated with the original and with the clone. 
   Console::WriteLine( "DTFI/NFI PROPERTY\tORIGINAL\tMODIFIED CLONE" );
   Console::WriteLine( "DTFI.AMDesignator\t{0}\t\t{1}", myCI->DateTimeFormat->AMDesignator, myCIclone->DateTimeFormat->AMDesignator );
   Console::WriteLine( "DTFI.DateSeparator\t{0}\t\t{1}", myCI->DateTimeFormat->DateSeparator, myCIclone->DateTimeFormat->DateSeparator );
   Console::WriteLine( "NFI.CurrencySymbol\t{0}\t\t{1}", myCI->NumberFormat->CurrencySymbol, myCIclone->NumberFormat->CurrencySymbol );
   Console::WriteLine( "NFI.NumberDecimalDigits\t{0}\t\t{1}", myCI->NumberFormat->NumberDecimalDigits, myCIclone->NumberFormat->NumberDecimalDigits );
}

/*
This code produces the following output.

DTFI/NFI PROPERTY       ORIGINAL        MODIFIED CLONE
DTFI.AMDesignator       AM              a.m.
DTFI.DateSeparator      /               -
NFI.CurrencySymbol      $               USD
NFI.NumberDecimalDigits 2               4
*/

using System;
using System.Globalization;

public class SamplesCultureInfo  {

   public static void Main()  {

      // Creates and initializes a CultureInfo.
      CultureInfo myCI = new CultureInfo("en-US", false);

      // Clones myCI and modifies the DTFI and NFI instances associated with the clone.
      CultureInfo myCIclone = (CultureInfo) myCI.Clone();
      myCIclone.DateTimeFormat.AMDesignator = "a.m.";
      myCIclone.DateTimeFormat.DateSeparator = "-";
      myCIclone.NumberFormat.CurrencySymbol = "USD";
      myCIclone.NumberFormat.NumberDecimalDigits = 4;

      // Displays the properties of the DTFI and NFI instances associated with the original and with the clone.
      Console.WriteLine( "DTFI/NFI PROPERTY\tORIGINAL\tMODIFIED CLONE" );
      Console.WriteLine( "DTFI.AMDesignator\t{0}\t\t{1}", myCI.DateTimeFormat.AMDesignator, myCIclone.DateTimeFormat.AMDesignator );
      Console.WriteLine( "DTFI.DateSeparator\t{0}\t\t{1}", myCI.DateTimeFormat.DateSeparator, myCIclone.DateTimeFormat.DateSeparator );
      Console.WriteLine( "NFI.CurrencySymbol\t{0}\t\t{1}", myCI.NumberFormat.CurrencySymbol, myCIclone.NumberFormat.CurrencySymbol );
      Console.WriteLine( "NFI.NumberDecimalDigits\t{0}\t\t{1}", myCI.NumberFormat.NumberDecimalDigits, myCIclone.NumberFormat.NumberDecimalDigits );
   }
}

/*
This code produces the following output.

DTFI/NFI PROPERTY       ORIGINAL        MODIFIED CLONE
DTFI.AMDesignator       AM              a.m.
DTFI.DateSeparator      /               -
NFI.CurrencySymbol      $               USD
NFI.NumberDecimalDigits 2               4

*/

Imports System.Globalization


Public Class SamplesCultureInfo
   
   Public Shared Sub Main()
      
      ' Creates and initializes a CultureInfo.
      Dim myCI As New CultureInfo("en-US", False)
      
      ' Clones myCI and modifies the DTFI and NFI instances associated with the clone.
      Dim myCIclone As CultureInfo = CType(myCI.Clone(), CultureInfo)
      myCIclone.DateTimeFormat.AMDesignator = "a.m."
      myCIclone.DateTimeFormat.DateSeparator = "-"
      myCIclone.NumberFormat.CurrencySymbol = "USD"
      myCIclone.NumberFormat.NumberDecimalDigits = 4
      
      ' Displays the properties of the DTFI and NFI instances associated with the original and with the clone. 
      Console.WriteLine("DTFI/NFI PROPERTY" + ControlChars.Tab + "ORIGINAL" + ControlChars.Tab + "MODIFIED CLONE")
      Console.WriteLine("DTFI.AMDesignator" + ControlChars.Tab + "{0}" + ControlChars.Tab + ControlChars.Tab + "{1}", myCI.DateTimeFormat.AMDesignator, myCIclone.DateTimeFormat.AMDesignator)
      Console.WriteLine("DTFI.DateSeparator" + ControlChars.Tab + "{0}" + ControlChars.Tab + ControlChars.Tab + "{1}", myCI.DateTimeFormat.DateSeparator, myCIclone.DateTimeFormat.DateSeparator)
      Console.WriteLine("NFI.CurrencySymbol" + ControlChars.Tab + "{0}" + ControlChars.Tab + ControlChars.Tab + "{1}", myCI.NumberFormat.CurrencySymbol, myCIclone.NumberFormat.CurrencySymbol)
      Console.WriteLine("NFI.NumberDecimalDigits" + ControlChars.Tab + "{0}" + ControlChars.Tab + ControlChars.Tab + "{1}", myCI.NumberFormat.NumberDecimalDigits, myCIclone.NumberFormat.NumberDecimalDigits)

   End Sub

End Class


' This code produces the following output.
'
' DTFI/NFI PROPERTY       ORIGINAL        MODIFIED CLONE
' DTFI.AMDesignator       AM              a.m.
' DTFI.DateSeparator      /               -
' NFI.CurrencySymbol      $               USD
' NFI.NumberDecimalDigits 2               4

注解

可以选择通过控制面板的区域和语言选项部分替代与 Windows 的当前区域性关联的一些值。 例如，用户可能选择以不同的格式显示日期，或使用区域性的默认货币以外的货币。

如果 UseUserOverride 为 true 且指定的区域性与 Windows 的当前区域性匹配，则 CultureInfo 使用这些替代，包括 属性返回DateTimeFormat的DateTimeFormatInfo实例属性的用户设置，以及 属性返回NumberFormat的NumberFormatInfo实例的属性。 如果用户设置与 关联的 CultureInfo区域性不兼容，例如，如果所选日历不是 之 OptionalCalendars一，则方法的结果和属性的值是未定义的。

在用户访问属性之前，NumberFormat不会计算 属性和 属性的值DateTimeFormat。 如果用户在应用程序运行时使用 控制面板将当前区域性更改为新区域性，然后访问 DateTimeFormat 或 NumberFormat 属性，则应用程序将检索新区域性的默认值。 而不是原始区域性的替代。 若要保留原始当前区域性的替代，应用程序应在更改当前区域性之前访问 DateTimeFormat 和 NumberFormat 属性。

另请参阅

• NumberFormatInfo
• GetFormat(Type)
• DateTimeFormat