Tuple<T1,T2,T3,T4>.Equals(Object) Método

Referencia

Definición

Espacio de nombres:: System

Ensamblado:: System.Runtime.dll

Ensamblado:: mscorlib.dll

Ensamblado:: netstandard.dll

Importante

Parte de la información hace referencia a la versión preliminar del producto, que puede haberse modificado sustancialmente antes de lanzar la versión definitiva. Microsoft no otorga ninguna garantía, explícita o implícita, con respecto a la información proporcionada aquí.

Devuelve un valor que indica si el objeto Tuple<T1,T2,T3,T4> actual es igual que el objeto especificado.

public:
 override bool Equals(System::Object ^ obj);

public override bool Equals (object obj);

public override bool Equals (object? obj);

override this.Equals : obj -> bool

Public Overrides Function Equals (obj As Object) As Boolean

Parámetros

obj: Object

Objeto que se va a comparar con esta instancia.

Devoluciones

Boolean

true si la instancia actual es igual que el objeto especificado; en caso contrario, false.

Ejemplos

En el ejemplo siguiente se define una matriz de Tuple<T1,T2,T3,T4> objetos que proporcionan datos sobre temperaturas a tres veces durante un día determinado. Se Equals(Object) llama al método para comparar todos los Tuple<T1,T2,T3,T4> objetos con todos los demás Tuple<T1,T2,T3,T4> objetos. La salida muestra que el Equals(Object) método devuelve true solo cuando los cuatro componentes de los Tuple<T1,T2,T3,T4> objetos tienen valores iguales.

using System;

public class Class1
{
   public static void Main()
   {
      Tuple<DateTime, double, double, double>[] temperatures = 
            { Tuple.Create(new DateTime(2009, 1, 16), 3.0, 5.0, 4.0),
              Tuple.Create(new DateTime(2009, 4, 22), 9.0, 14.0, 11.0), 
              Tuple.Create(new DateTime(2009, 4, 22), 9.0, 14.0, 10.0),
              Tuple.Create(new DateTime(2009, 6, 1), 23.0, 28.0, 21.0),
              Tuple.Create(new DateTime(2009, 4, 22), 9.0, 14.0, 11.0),
              Tuple.Create(new DateTime(2009, 9, 6), 25.0, 30.0, 25.0) }; 
      // Compare each item with every other item for equality.
      for (int ctr = 0; ctr < temperatures.Length; ctr++)
      {
         var temperatureInfo = temperatures[ctr];
         for (int ctr2 = ctr + 1; ctr2 < temperatures.Length; ctr2++)
            Console.WriteLine("{0} = {1}: {2}", temperatureInfo, temperatures[ctr2], 
                                                temperatureInfo.Equals(temperatures[ctr2]));
         Console.WriteLine();
      }   
   }
}
// The example displays the following output:
//    (1/16/2009 12:00:00 AM, 3, 5, 4) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
//    (1/16/2009 12:00:00 AM, 3, 5, 4) = (4/22/2009 12:00:00 AM, 9, 14, 10): False
//    (1/16/2009 12:00:00 AM, 3, 5, 4) = (6/1/2009 12:00:00 AM, 23, 28, 21): False
//    (1/16/2009 12:00:00 AM, 3, 5, 4) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
//    (1/16/2009 12:00:00 AM, 3, 5, 4) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
//    
//    (4/22/2009 12:00:00 AM, 9, 14, 11) = (4/22/2009 12:00:00 AM, 9, 14, 10): False
//    (4/22/2009 12:00:00 AM, 9, 14, 11) = (6/1/2009 12:00:00 AM, 23, 28, 21): False
//    (4/22/2009 12:00:00 AM, 9, 14, 11) = (4/22/2009 12:00:00 AM, 9, 14, 11): True
//    (4/22/2009 12:00:00 AM, 9, 14, 11) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
//    
//    (4/22/2009 12:00:00 AM, 9, 14, 10) = (6/1/2009 12:00:00 AM, 23, 28, 21): False
//    (4/22/2009 12:00:00 AM, 9, 14, 10) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
//    (4/22/2009 12:00:00 AM, 9, 14, 10) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
//    
//    (6/1/2009 12:00:00 AM, 23, 28, 21) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
//    (6/1/2009 12:00:00 AM, 23, 28, 21) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
//    
//    (4/22/2009 12:00:00 AM, 9, 14, 11) = (9/6/2009 12:00:00 AM, 25, 30, 25): False

open System

let temperatures = 
    [| Tuple.Create(DateTime(2009, 1, 16), 3.0, 5.0, 4.0)
       Tuple.Create(DateTime(2009, 4, 22), 9.0, 14.0, 11.0)
       Tuple.Create(DateTime(2009, 4, 22), 9.0, 14.0, 10.0)
       Tuple.Create(DateTime(2009, 6, 1), 23.0, 28.0, 21.0)
       Tuple.Create(DateTime(2009, 4, 22), 9.0, 14.0, 11.0)
       Tuple.Create(DateTime(2009, 9, 6), 25.0, 30.0, 25.0) |]

// Compare each item with every other item for equality.
for ctr = 0 to temperatures.Length - 1 do
    let temperatureInfo = temperatures[ctr]
    for ctr2 = ctr + 1 to temperatures.Length - 1 do
        printfn $"{temperatureInfo} = {temperatures[ctr2]}: {temperatureInfo.Equals temperatures[ctr2]}"
    printfn ""   
// The example displays the following output:
//    (1/16/2009 12:00:00 AM, 3, 5, 4) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
//    (1/16/2009 12:00:00 AM, 3, 5, 4) = (4/22/2009 12:00:00 AM, 9, 14, 10): False
//    (1/16/2009 12:00:00 AM, 3, 5, 4) = (6/1/2009 12:00:00 AM, 23, 28, 21): False
//    (1/16/2009 12:00:00 AM, 3, 5, 4) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
//    (1/16/2009 12:00:00 AM, 3, 5, 4) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
//    
//    (4/22/2009 12:00:00 AM, 9, 14, 11) = (4/22/2009 12:00:00 AM, 9, 14, 10): False
//    (4/22/2009 12:00:00 AM, 9, 14, 11) = (6/1/2009 12:00:00 AM, 23, 28, 21): False
//    (4/22/2009 12:00:00 AM, 9, 14, 11) = (4/22/2009 12:00:00 AM, 9, 14, 11): True
//    (4/22/2009 12:00:00 AM, 9, 14, 11) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
//    
//    (4/22/2009 12:00:00 AM, 9, 14, 10) = (6/1/2009 12:00:00 AM, 23, 28, 21): False
//    (4/22/2009 12:00:00 AM, 9, 14, 10) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
//    (4/22/2009 12:00:00 AM, 9, 14, 10) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
//    
//    (6/1/2009 12:00:00 AM, 23, 28, 21) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
//    (6/1/2009 12:00:00 AM, 23, 28, 21) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
//    
//    (4/22/2009 12:00:00 AM, 9, 14, 11) = (9/6/2009 12:00:00 AM, 25, 30, 25): False

Module Example
   Public Sub Main()
      Dim temperatures() = 
              { Tuple.Create(#1/16/2009#, 3, 5, 4), _
                Tuple.Create(#4/22/2009#, 9, 14, 11), _ 
                Tuple.Create(#4/22/2009#, 9, 14, 10), _
                Tuple.Create(#6/01/2009#, 23, 28, 21), _
                Tuple.Create(#4/22/2009#, 9, 14, 11), _
                Tuple.Create(#9/06/2009#, 25, 30, 25) } 
      ' Compare each item with every other item for equality.
      For ctr As Integer = 0 To temperatures.Length - 1
         Dim temperatureInfo = temperatures(ctr)
         For ctr2 As Integer = ctr + 1 To temperatures.Length - 1
            Console.WriteLine("{0} = {1}: {2}", temperatureInfo, temperatures(ctr2), 
                                                temperatureInfo.Equals(temperatures(ctr2)))
         Next  
         Console.WriteLine()                                               
      Next
   End Sub
End Module
' The example displays the following output:
'    (1/16/2009 12:00:00 AM, 3, 5, 4) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
'    (1/16/2009 12:00:00 AM, 3, 5, 4) = (4/22/2009 12:00:00 AM, 9, 14, 10): False
'    (1/16/2009 12:00:00 AM, 3, 5, 4) = (6/1/2009 12:00:00 AM, 23, 28, 21): False
'    (1/16/2009 12:00:00 AM, 3, 5, 4) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
'    (1/16/2009 12:00:00 AM, 3, 5, 4) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
'    
'    (4/22/2009 12:00:00 AM, 9, 14, 11) = (4/22/2009 12:00:00 AM, 9, 14, 10): False
'    (4/22/2009 12:00:00 AM, 9, 14, 11) = (6/1/2009 12:00:00 AM, 23, 28, 21): False
'    (4/22/2009 12:00:00 AM, 9, 14, 11) = (4/22/2009 12:00:00 AM, 9, 14, 11): True
'    (4/22/2009 12:00:00 AM, 9, 14, 11) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
'    
'    (4/22/2009 12:00:00 AM, 9, 14, 10) = (6/1/2009 12:00:00 AM, 23, 28, 21): False
'    (4/22/2009 12:00:00 AM, 9, 14, 10) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
'    (4/22/2009 12:00:00 AM, 9, 14, 10) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
'    
'    (6/1/2009 12:00:00 AM, 23, 28, 21) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
'    (6/1/2009 12:00:00 AM, 23, 28, 21) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
'    
'    (4/22/2009 12:00:00 AM, 9, 14, 11) = (9/6/2009 12:00:00 AM, 25, 30, 25): False

Comentarios

El obj parámetro se considera igual que la instancia actual en las condiciones siguientes:

Es un Tuple<T1,T2,T3,T4> objeto .
Sus cuatro componentes son de los mismos tipos que la instancia actual.
Sus cuatro componentes son iguales a los de la instancia actual. La igualdad viene determinada por el comparador de igualdad de objetos predeterminado para cada componente.

Se aplica a