Guid.Equality(Guid, Guid) Guid.Equality(Guid, Guid) Guid.Equality(Guid, Guid) Guid.Equality(Guid, Guid) Operator

Definition

Gibt an, ob die Werte von zwei angegebenen Guid-Objekten gleich sind.Indicates whether the values of two specified Guid objects are equal.

public:
 static bool operator ==(Guid a, Guid b);
public static bool operator == (Guid a, Guid b);
static member ( = ) : Guid * Guid -> bool
Public Shared Operator == (a As Guid, b As Guid) As Boolean

Parameter

a
Guid Guid Guid Guid

Das erste zu vergleichende Objekt.The first object to compare.

b
Guid Guid Guid Guid

Das zweite zu vergleichende Objekt.The second object to compare.

Gibt zurück

true, wenn a und b gleich sind, andernfalls false.true if a and b are equal; otherwise, false.

Beispiele

Im folgenden Beispiel wird die Equality Operator zum Vergleichen von zwei GUID-Werten mit Guid.Empty zu bestimmen, ob sie ausschließlich aus Nullen bestehen aus.The following example uses the Equality operator to compare two GUID values with Guid.Empty to determine whether they consist exclusively of zeros.

using System;

public class Example
{
   public static void Main()
   {
      // Create a GUID and determine whether it consists of all zeros.
      Guid guid1 = Guid.NewGuid();
      Console.WriteLine(guid1);
      Console.WriteLine("Empty: {0}\n", guid1 == Guid.Empty);
      
      // Create a GUID with all zeros and compare it to Empty.
      Byte[] bytes = new Byte[16];
      Guid guid2 = new Guid(bytes);
      Console.WriteLine(guid2);
      Console.WriteLine("Empty: {0}", guid2 == Guid.Empty);
   }
}
// The example displays output like the following:
//       11c43ee8-b9d3-4e51-b73f-bd9dda66e29c
//       Empty: False
//       
//       00000000-0000-0000-0000-000000000000
//       Empty: True
Module Example
   Public Sub Main()
      ' Create a GUID and determine whether it consists of all zeros.
      Dim guid1 As Guid = Guid.NewGuid
      Console.WriteLine(guid1)
      Console.WriteLine("Empty: {0}", guid1 = Guid.Empty)
      Console.WriteLine()
      
      ' Create a GUID with all zeros and compare it to Empty.
      Dim bytes(15) As Byte
      Dim guid2 As New Guid(bytes)
      Console.WriteLine(guid2)
      Console.WriteLine("Empty: {0}", guid2 = Guid.Empty)
   End Sub
End Module
' The example displays output like the following:
'       11c43ee8-b9d3-4e51-b73f-bd9dda66e29c
'       Empty: False
'       
'       00000000-0000-0000-0000-000000000000
'       Empty: True

Hinweise

Die entsprechende Methode für diesen Operator ist Guid.Equals(Object)The equivalent method for this operator is Guid.Equals(Object)

Gilt für: