NumberFormatInfo.NumberGroupSizes 属性
定义
重要
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获取或设置数值中小数点左边每一组的位数。
public:
property cli::array <int> ^ NumberGroupSizes { cli::array <int> ^ get(); void set(cli::array <int> ^ value); };public int[] NumberGroupSizes { get; set; }member this.NumberGroupSizes : int[] with get, setPublic Property NumberGroupSizes As Integer()属性值
Int32[]
数值中小数点左边每一组的位数。 InvariantInfo 的默认值是一个一维数组，该数组只包含一个设置为 3 的元素。
例外
该属性设置为 null。
设置了该属性，但 NumberFormatInfo 对象为只读。
示例
以下示例演示更改 NumberGroupSizes 属性的效果。
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 value with the default separator (S".").
Int64 myInt = 123456789012345;
Console::WriteLine( myInt.ToString( "N", nfi ) );
// Displays the same value with different groupings.
array<Int32>^mySizes1 = {2,3,4};
array<Int32>^mySizes2 = {2,3,0};
nfi->NumberGroupSizes = mySizes1;
Console::WriteLine( myInt.ToString( "N", nfi ) );
nfi->NumberGroupSizes = mySizes2;
Console::WriteLine( myInt.ToString( "N", nfi ) );
}
/*
This code produces the following output.
123, 456, 789, 012, 345.00
12, 3456, 7890, 123, 45.00
1234567890, 123, 45.00
*/
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 value with the default separator (".").
Int64 myInt = 123456789012345;
Console.WriteLine( myInt.ToString( "N", nfi ) );
// Displays the same value with different groupings.
int[] mySizes1 = {2,3,4};
int[] mySizes2 = {2,3,0};
nfi.NumberGroupSizes = mySizes1;
Console.WriteLine( myInt.ToString( "N", nfi ) );
nfi.NumberGroupSizes = mySizes2;
Console.WriteLine( myInt.ToString( "N", nfi ) );
}
}
/*
This code produces the following output.
123,456,789,012,345.00
12,3456,7890,123,45.00
1234567890,123,45.00
*/
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 value with the default separator (".").
Dim myInt As Int64 = 123456789012345
Console.WriteLine(myInt.ToString("N", nfi))
' Displays the same value with different groupings.
Dim mySizes1 As Integer() = {2, 3, 4}
Dim mySizes2 As Integer() = {2, 3, 0}
nfi.NumberGroupSizes = mySizes1
Console.WriteLine(myInt.ToString("N", nfi))
nfi.NumberGroupSizes = mySizes2
Console.WriteLine(myInt.ToString("N", nfi))
End Sub
End Class
'This code produces the following output.
'
'123,456,789,012,345.00
'12,3456,7890,123,45.00
'1234567890,123,45.00
以下示例使用不同的 NumberGroupSizes 数组打印值。
using namespace System;
using namespace System::Globalization;
String^ PrintArraySet( array<Int32>^myArr )
{
String^ myStr = nullptr;
myStr = myArr[ 0 ].ToString();
for ( int i = 1; i < myArr->Length; i++ )
myStr = String::Concat( myStr, ", ", myArr[ i ].ToString() );
return myStr;
}
int main()
{
// Creates a new NumberFormatinfo.
NumberFormatInfo^ myNfi = gcnew NumberFormatInfo;
// Takes a long value.
Int64 myInt = 123456789012345;
// Displays the value with default formatting.
Console::WriteLine( "Default \t\t:\t{0}", myInt.ToString( "N", myNfi ) );
// Displays the value with three elements in the GroupSize array.
array<Int32>^newInts1 = {2,3,4};
myNfi->NumberGroupSizes = newInts1;
Console::WriteLine( "Grouping ( {0} )\t:\t{1}", PrintArraySet( myNfi->NumberGroupSizes ), myInt.ToString( "N", myNfi ) );
// Displays the value with zero as the last element in the GroupSize array.
array<Int32>^newInts2 = {2,4,0};
myNfi->NumberGroupSizes = newInts2;
Console::WriteLine( "Grouping ( {0} )\t:\t{1}", PrintArraySet( myNfi->NumberGroupSizes ), myInt.ToString( "N", myNfi ) );
}
/*
This code produces the following output.
Default : 123, 456, 789, 012, 345.00
Grouping (2, 3, 4) : 12, 3456, 7890, 123, 45.00
Grouping (2, 4, 0) : 123456789, 0123, 45.00
*/
using System;
using System.Globalization;
class SamplesNumberFormatInfo {
public static void Main() {
// Creates a new NumberFormatinfo.
NumberFormatInfo myNfi = new NumberFormatInfo();
// Takes a long value.
Int64 myInt = 123456789012345;
// Displays the value with default formatting.
Console.WriteLine( "Default \t\t:\t{0}", myInt.ToString( "N", myNfi ) );
// Displays the value with three elements in the GroupSize array.
myNfi.NumberGroupSizes = new int[] { 2, 3, 4 };
Console.WriteLine( "Grouping ( {0} )\t:\t{1}",
PrintArraySet( myNfi.NumberGroupSizes ), myInt.ToString( "N", myNfi ) );
// Displays the value with zero as the last element in the GroupSize array.
myNfi.NumberGroupSizes = new int[] { 2, 4, 0 };
Console.WriteLine( "Grouping ( {0} )\t:\t{1}",
PrintArraySet( myNfi.NumberGroupSizes ), myInt.ToString( "N", myNfi ) );
}
public static string PrintArraySet( int[] myArr ) {
string myStr = null;
myStr = myArr[0].ToString();
for ( int i = 1; i < myArr.Length; i++ )
myStr += ", " + myArr[i].ToString();
return( myStr );
}
}
/*
This code produces the following output.
Default : 123,456,789,012,345.00
Grouping ( 2, 3, 4 ) : 12,3456,7890,123,45.00
Grouping ( 2, 4, 0 ) : 123456789,0123,45.00
*/
Imports System.Globalization
Class SamplesNumberFormatInfo
Public Shared Sub Main()
' Creates a new NumberFormatinfo.
Dim myNfi As New NumberFormatInfo()
' Takes a long value.
Dim myInt As Int64 = 123456789012345
' Displays the value with default formatting.
Console.WriteLine("Default " + ControlChars.Tab + ControlChars.Tab _
+ ":" + ControlChars.Tab + "{0}", myInt.ToString("N", myNfi))
' Displays the value with three elements in the GroupSize array.
myNfi.NumberGroupSizes = New Integer() {2, 3, 4}
Console.WriteLine("Grouping ( {0} )" + ControlChars.Tab + ":" _
+ ControlChars.Tab + "{1}", _
PrintArraySet(myNfi.NumberGroupSizes), myInt.ToString("N", myNfi))
' Displays the value with zero as the last element in the GroupSize array.
myNfi.NumberGroupSizes = New Integer() {2, 4, 0}
Console.WriteLine("Grouping ( {0} )" + ControlChars.Tab + ":" _
+ ControlChars.Tab + "{1}", _
PrintArraySet(myNfi.NumberGroupSizes), myInt.ToString("N", myNfi))
End Sub
Public Shared Function PrintArraySet(myArr() As Integer) As String
Dim myStr As String = Nothing
myStr = myArr(0).ToString()
Dim i As Integer
For i = 1 To myArr.Length - 1
myStr += ", " + myArr(i).ToString()
Next i
Return myStr
End Function
End Class
' This code produces the following output.
'
' Default : 123,456,789,012,345.00
' Grouping ( 2, 3, 4 ) : 12,3456,7890,123,45.00
' Grouping ( 2, 4, 0 ) : 123456789,0123,45.00
注解
属性的值 NumberGroupSizes 会影响使用“N”设置格式的数字值的结果。 如果使用自定义数字格式字符串或其他标准数字格式字符串，则忽略 属性的值 NumberGroupSizes 。
一维数组中的每个元素必须是 1 到 9 的整数。 最后一个元素可以为 0。
数组的第一个元素定义 紧接在 左侧的最小有效数字组中的 NumberDecimalSeparator元素数。 每个后续元素引用上一组左侧的下一个重要数字组。 如果数组的最后一个元素不是 0，则根据数组的最后一个元素对剩余的数字进行分组。 如果最后一个元素为 0，则不对剩余的数字进行分组。
例如，如果数组包含 { 3， 4， 5 }，则数字分组方式类似于“55，55555，55555，55555，4444，333.00”。 如果数组包含 { 3， 4， 0 }，则数字分组方式类似于“55555555555555555，4444，333.00”。
适用于
另请参阅
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