Comparer Clase

Definición

public ref class Comparer sealed : System::Collections::IComparer

public ref class Comparer sealed : System::Collections::IComparer, System::Runtime::Serialization::ISerializable

public sealed class Comparer : System.Collections.IComparer

public sealed class Comparer : System.Collections.IComparer, System.Runtime.Serialization.ISerializable

[System.Serializable]
public sealed class Comparer : System.Collections.IComparer, System.Runtime.Serialization.ISerializable

[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public sealed class Comparer : System.Collections.IComparer, System.Runtime.Serialization.ISerializable

type Comparer = class
    interface IComparer

type Comparer = class
    interface IComparer
    interface ISerializable

[<System.Serializable>]
type Comparer = class
    interface IComparer
    interface ISerializable

[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
type Comparer = class
    interface IComparer
    interface ISerializable

Public NotInheritable Class Comparer
Implements IComparer

Public NotInheritable Class Comparer
Implements IComparer, ISerializable

Herencia

Object

Comparer

Atributos

SerializableAttribute ComVisibleAttribute

Implementaciones

IComparer ISerializable

Ejemplos

En el ejemplo de código siguiente se muestra cómo Compare devuelve valores diferentes en función de la referencia cultural asociada a Comparer.

using namespace System;
using namespace System::Collections;
using namespace System::Globalization;
int main()
{
   
   // Creates the strings to compare.
   String^ str1 = "llegar";
   String^ str2 = "lugar";
   Console::WriteLine( "Comparing \"{0}\" and \"{1}\" ...", str1, str2 );
   
   // Uses the DefaultInvariant Comparer.
   Console::WriteLine( "   Invariant Comparer: {0}", Comparer::DefaultInvariant->Compare( str1, str2 ) );
   
   // Uses the Comparer based on the culture "es-ES" (Spanish - Spain, international sort).
   Comparer^ myCompIntl = gcnew Comparer( gcnew CultureInfo(  "es-ES",false ) );
   Console::WriteLine( "   International Sort: {0}", myCompIntl->Compare( str1, str2 ) );
   
   // Uses the Comparer based on the culture identifier 0x040A (Spanish - Spain, traditional sort).
   Comparer^ myCompTrad = gcnew Comparer( gcnew CultureInfo( 0x040A,false ) );
   Console::WriteLine( "   Traditional Sort  : {0}", myCompTrad->Compare( str1, str2 ) );
}

/*
This code produces the following output.

Comparing "llegar" and "lugar" ...
   Invariant Comparer: -1
   International Sort: -1
   Traditional Sort  : 1

*/

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

public class SamplesComparer  {

   public static void Main()  {

      // Creates the strings to compare.
      String str1 = "llegar";
      String str2 = "lugar";
      Console.WriteLine( "Comparing \"{0}\" and \"{1}\" ...", str1, str2 );

      // Uses the DefaultInvariant Comparer.
      Console.WriteLine( "   Invariant Comparer: {0}", Comparer.DefaultInvariant.Compare( str1, str2 ) );

      // Uses the Comparer based on the culture "es-ES" (Spanish - Spain, international sort).
      Comparer myCompIntl = new Comparer( new CultureInfo( "es-ES", false ) );
      Console.WriteLine( "   International Sort: {0}", myCompIntl.Compare( str1, str2 ) );

      // Uses the Comparer based on the culture identifier 0x040A (Spanish - Spain, traditional sort).
      Comparer myCompTrad = new Comparer( new CultureInfo( 0x040A, false ) );
      Console.WriteLine( "   Traditional Sort  : {0}", myCompTrad.Compare( str1, str2 ) );
   }
}

/*
This code produces the following output.

Comparing "llegar" and "lugar" ...
   Invariant Comparer: -1
   International Sort: -1
   Traditional Sort  : 1

*/

Imports System.Collections
Imports System.Globalization

Public Class SamplesComparer

   Public Shared Sub Main()

      ' Creates the strings to compare.
      Dim str1 As [String] = "llegar"
      Dim str2 As [String] = "lugar"
      Console.WriteLine("Comparing ""{0}"" and ""{1}"" ...", str1, str2)

      ' Uses the DefaultInvariant Comparer.
      Console.WriteLine("   Invariant Comparer: {0}", Comparer.DefaultInvariant.Compare(str1, str2))

      ' Uses the Comparer based on the culture "es-ES" (Spanish - Spain, international sort).
      Dim myCompIntl As New Comparer(New CultureInfo("es-ES", False))
      Console.WriteLine("   International Sort: {0}", myCompIntl.Compare(str1, str2))

      ' Uses the Comparer based on the culture identifier 0x040A (Spanish - Spain, traditional sort).
      Dim myCompTrad As New Comparer(New CultureInfo(&H40A, False))
      Console.WriteLine("   Traditional Sort  : {0}", myCompTrad.Compare(str1, str2))

   End Sub

End Class


'This code produces the following output.
'
'Comparing "llegar" and "lugar" ...
'   Invariant Comparer: -1
'   International Sort: -1
'   Traditional Sort  : 1

Comentarios

Esta clase es la implementación predeterminada de la IComparer interfaz. La CaseInsensitiveComparer clase es la implementación de la IComparer interfaz que realiza comparaciones de cadenas que no distinguen mayúsculas de minúsculas. System.Collections.Generic.Comparer<T> es el equivalente genérico de esta clase.

Los procedimientos de comparación usan el Thread.CurrentCulture del subproceso actual a menos que se especifique lo contrario. Las comparaciones de cadenas pueden tener resultados diferentes en función de la referencia cultural. Para obtener más información sobre las comparaciones específicas de la referencia cultural, consulte el espacio de nombres y globalización System.Globalizationy la localización.

Constructores

Campos

Métodos

Se aplica a

Consulte también

• IComparer
• IComparable
• CaseInsensitiveComparer
• Comparer<T>
• CompareInfo
• CurrentCulture
• CultureInfo