NumberFormatInfo.NumberDecimalDigits 属性

定义

获取或设置在数值中使用的小数位数。

public:
 property int NumberDecimalDigits { int get(); void set(int value); };
public int NumberDecimalDigits { get; set; }
member this.NumberDecimalDigits : int with get, set
Public Property NumberDecimalDigits As Integer

属性值

Int32

在数值中使用的小数位数。 InvariantInfo 的默认值为 2。

例外

该属性设置为一个小于 0 或大于 99 的值。

设置了该属性,但 NumberFormatInfo 对象为只读。

示例

下面的示例演示更改 属性 NumberDecimalDigits 的效果。

using namespace System;
using namespace System::Globalization;
int main()
{
   
   // Gets a NumberFormatInfo associated with the en-US culture.
   CultureInfo^ MyCI = gcnew CultureInfo( "en-US",false );
   NumberFormatInfo^ nfi = MyCI->NumberFormat;
   
   // Displays a negative value with the default number of decimal digits (2).
   Int64 myInt = -1234;
   Console::WriteLine( myInt.ToString( "N", nfi ) );
   
   // Displays the same value with four decimal digits.
   nfi->NumberDecimalDigits = 4;
   Console::WriteLine( myInt.ToString( "N", nfi ) );
}

/* 
This code produces the following output.
-1, 234.00
-1, 234.0000
*/
using System;
using System.Globalization;

class NumberFormatInfoSample {

   public static void Main() {

      // Gets a NumberFormatInfo associated with the en-US culture.
      NumberFormatInfo nfi = new CultureInfo( "en-US", false ).NumberFormat;

      // Displays a negative value with the default number of decimal digits (2).
      Int64 myInt = -1234;
      Console.WriteLine( myInt.ToString( "N", nfi ) );

      // Displays the same value with four decimal digits.
      nfi.NumberDecimalDigits = 4;
      Console.WriteLine( myInt.ToString( "N", nfi ) );
   }
}


/*
This code produces the following output.

-1,234.00
-1,234.0000
*/
Imports System.Globalization

Class NumberFormatInfoSample

   Public Shared Sub Main()

      ' Gets a NumberFormatInfo associated with the en-US culture.
      Dim nfi As NumberFormatInfo = New CultureInfo("en-US", False).NumberFormat

      ' Displays a negative value with the default number of decimal digits (2).
      Dim myInt As Int64 = - 1234
      Console.WriteLine(myInt.ToString("N", nfi))

      ' Displays the same value with four decimal digits.
      nfi.NumberDecimalDigits = 4
      Console.WriteLine(myInt.ToString("N", nfi))

   End Sub

End Class


'This code produces the following output.
'
'-1,234.00
'-1,234.0000

注解

属性与"F"和"N"标准格式字符串一起使用,在数值格式设置操作中不带 NumberDecimalDigits 精度说明器。 它定义小数点分隔符后显示的默认小数位数。 如果使用精度说明器,则覆盖此值。 有关详细信息,请参阅标准数值格式字符串

适用于

另请参阅