NumberFormatInfo.CurrentInfo Proprietà

Definizione

Spazio dei nomi:

System.Globalization

Assembly:

System.Runtime.dll

Origine:

NumberFormatInfo.cs

Ottiene un oggetto NumberFormatInfo di sola lettura che formatta i valori in base alle impostazioni cultura correnti.

public:
 static property System::Globalization::NumberFormatInfo ^ CurrentInfo { System::Globalization::NumberFormatInfo ^ get(); };

public static System.Globalization.NumberFormatInfo CurrentInfo { get; }

static member CurrentInfo : System.Globalization.NumberFormatInfo

Public Shared ReadOnly Property CurrentInfo As NumberFormatInfo

Valore della proprietà

NumberFormatInfo

Oggetto NumberFormatInfo di sola lettura in base alle impostazioni cultura del thread corrente.

Esempio

Nell'esempio seguente viene illustrato che gli oggetti restituiti dalle CurrentInfo proprietà e CultureInfo.CurrentCulture.NumberFormat sono identici. Usa quindi la reflection per visualizzare i valori delle proprietà dell'oggetto NumberFormatInfo restituito dalla CurrentInfo proprietà in un sistema le cui impostazioni cultura correnti sono en-US.

using System;
using System.Collections;
using System.Globalization;
using System.Reflection;

public class Example : IComparer
{
   public static void Main()
   {
      NumberFormatInfo nfi1 = NumberFormatInfo.CurrentInfo;
      NumberFormatInfo nfi2 = CultureInfo.CurrentCulture.NumberFormat;
      Console.WriteLine("Objects equal: {0}", nfi1.Equals(nfi2));
      Console.WriteLine("Equal references: {0}\n", Object.ReferenceEquals(nfi1, nfi2));

      PropertyInfo[] props = nfi1.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public);
      Array.Sort(props, new Example());
      Console.WriteLine("Properties of NumberFormat.CurrentInfo object:");
      foreach (var prop in props) {
         if (prop.PropertyType.IsArray) {
            Array arr = prop.GetValue(nfi1) as Array;
            Console.Write(String.Format("   {0}: ", prop.Name) + "{ ");
            int ctr = 0;
            foreach (var item in arr) {
               Console.Write("{0}{1}", item, ctr == arr.Length - 1 ?" }" : ", ");
               ctr++;
            }
            Console.WriteLine();
         }
         else {
            Console.WriteLine("   {0}: {1}", prop.Name, prop.GetValue(nfi1));
        }
      }
   }

   public int Compare(Object x, Object y)
   {
      if (x == null && y == null) return 0;

      PropertyInfo px = x as PropertyInfo;
      if (px == null) return -1;

      PropertyInfo py = y as PropertyInfo;
      if (py == null) return 1;

      return String.Compare(px.Name, py.Name);
   }
}
// The example displays the following output:
//       Objects equal: True
//       Equal references: True
//
//       Properties of NumberFormat.CurrentInfo object:
//          CurrencyDecimalDigits: 2
//          CurrencyDecimalSeparator: .
//          CurrencyGroupSeparator: ,
//          CurrencyGroupSizes: { 3 }
//          CurrencyNegativePattern: 0
//          CurrencyPositivePattern: 0
//          CurrencySymbol: $
//          DigitSubstitution: None
//          IsReadOnly: True
//          NaNSymbol: NaN
//          NativeDigits: { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }
//          NegativeInfinitySymbol: -Infinity
//          NegativeSign: -
//          NumberDecimalDigits: 2
//          NumberDecimalSeparator: .
//          NumberGroupSeparator: ,
//          NumberGroupSizes: { 3 }
//          NumberNegativePattern: 1
//          PercentDecimalDigits: 2
//          PercentDecimalSeparator: .
//          PercentGroupSeparator: ,
//          PercentGroupSizes: { 3 }
//          PercentNegativePattern: 0
//          PercentPositivePattern: 0
//          PercentSymbol: %
//          PerMilleSymbol: %
//          PositiveInfinitySymbol: Infinity
//          PositiveSign: +

Imports System.Collections
Imports System.Globalization
Imports System.Reflection

Public Class Example : Implements IComparer
   Public Shared Sub Main()
      Dim nfi1 As NumberFormatInfo = NumberFormatInfo.CurrentInfo
      Dim nfi2 As NumberFormatInfo = CultureInfo.CurrentCulture.NumberFormat
      Console.WriteLine("Objects equal: {0}", nfi1.Equals(nfi2))
      Console.WriteLine("Equal references: {0}", Object.ReferenceEquals(nfi1, nfi2))
      Console.WriteLine()
      
      Dim props() As PropertyInfo = nfi1.GetType().GetProperties(BindingFlags.Instance Or BindingFlags.Public)
      Array.Sort(props, New Example)
      Console.WriteLine("Properties of NumberFormat.CurrentInfo object:")
      For Each prop In props
         If prop.PropertyType.IsArray Then
            Dim arr As Array = CType(prop.GetValue(nfi1), Array)
            Console.Write(String.Format("   {0}: ", prop.Name) + "{ ")
            Dim ctr As Integer = 0
            For Each item In arr
               Console.Write("{0}{1}", item, If(ctr = arr.Length - 1, " }", ", "))
               ctr += 1
            Next
            Console.WriteLine()
         Else
            Console.WriteLine("   {0}: {1}", prop.Name, prop.GetValue(nfi1))
        End If   
      Next      
   End Sub
   
   Private Function Compare(x As Object, y As Object) As Integer _
      Implements IComparer.Compare
      
      If x Is Nothing And y Is Nothing Then Return 0
      Dim px As PropertyInfo = TryCast(x, PropertyInfo)
      If px Is Nothing Then Return -1
      
      Dim py As PropertyInfo = TryCast(y, PropertyInfo)
      If py Is Nothing Then Return 1
      
      Return String.Compare(px.Name, py.Name)
   End Function
End Class
' The example displays the following output:
'       Objects equal: True
'       Equal references: True
'       
'       Properties of NumberFormat.CurrentInfo object:
'          CurrencyDecimalDigits: 2
'          CurrencyDecimalSeparator: .
'          CurrencyGroupSeparator: ,
'          CurrencyGroupSizes: { 3 }
'          CurrencyNegativePattern: 0
'          CurrencyPositivePattern: 0
'          CurrencySymbol: $
'          DigitSubstitution: None
'          IsReadOnly: True
'          NaNSymbol: NaN
'          NativeDigits: { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }
'          NegativeInfinitySymbol: -Infinity
'          NegativeSign: -
'          NumberDecimalDigits: 2
'          NumberDecimalSeparator: .
'          NumberGroupSeparator: ,
'          NumberGroupSizes: { 3 }
'          NumberNegativePattern: 1
'          PercentDecimalDigits: 2
'          PercentDecimalSeparator: .
'          PercentGroupSeparator: ,
'          PercentGroupSizes: { 3 }
'          PercentNegativePattern: 0
'          PercentPositivePattern: 0
'          PercentSymbol: %
'          PerMilleSymbol: %
'          PositiveInfinitySymbol: Infinity
'          PositiveSign: +

Commenti

Il recupero di un NumberFormatInfo oggetto dalla CurrentInfo proprietà equivale al recupero di un NumberFormatInfo oggetto dalla CultureInfo.CurrentCulture.NumberFormat proprietà .

Vedi anche

• CultureInfo
• NumberFormat