NumberFormatInfo.NumberDecimalDigits 属性
定义
获取或设置在数值中使用的小数位数。Gets or sets the number of decimal places to use in numeric values.
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
在数值中使用的小数位数。The number of decimal places to use in numeric values. InvariantInfo 的默认值为 2。The default for InvariantInfo is 2.
异常
该属性设置为一个小于 0 或大于 99 的值。The property is being set to a value that is less than 0 or greater than 99.
设置了该属性,但 NumberFormatInfo 对象为只读。The property is being set and the NumberFormatInfo object is read-only.
示例
下面的示例演示更改NumberDecimalDigits属性的效果。The following example demonstrates the effect of changing the NumberDecimalDigits property.
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
NumberDecimalDigits属性用于 "F" 和 "N" 标准格式字符串,在数字格式设置操作中没有精度说明符。The NumberDecimalDigits property is used with the "F" and "N" standard format strings without a precision specifier in numeric formatting operations. 它定义小数点分隔符后显示的默认小数位数。It defines the default number of fractional digits that appear after the decimal separator. 如果使用精度说明符,则此值将被重写。This value is overridden if a precision specifier is used. 有关详细信息,请参阅标准数值格式字符串。For more information, see Standard Numeric Format Strings.