UnicodeEncoding.Equals-Methode

Gibt einen Wert zurück, der angibt, ob diese Instanz gleich einem angegebenen Objekt ist.

Overrides Public Function Equals( _
   ByVal value As Object _) As Boolean
[C#]
public override bool Equals(objectvalue);
[C++]
public: bool Equals(Object* value);
[JScript]
public override function Equals(
   value : Object) : Boolean;

Parameter

• value
  Ein Objekt, das mit dieser Instanz verglichen werden soll, oder NULL (Nothing in Visual Basic).

Rückgabewert

true, wenn value eine Instanz von UnicodeEncoding und gleich dem Wert dieser Instanz ist, andernfalls false.

Beispiel

[Visual Basic, C#, C++] Das folgende Beispiel veranschaulicht, wie mit der Equals-Methode überprüft wird, ob diese Instanz von UnicodeEncoding gleich einer anderen Instanz von UnicodeEncoding ist. Es werden fünf Instanzen von UnicodeEncoding erstellt und verglichen, und die Ergebnisse dieser Vergleiche werden auf der Konsole angezeigt.

 
Imports System
Imports System.Text

Class UnicodeEncodingExample
    
    Public Shared Sub Main()

        ' Create a UnicodeEncoding without parameters.
        Dim unicodeDefault As New UnicodeEncoding()

        ' Create a UnicodeEncoding to support little-endian byte ordering
        ' and include the Unicode byte order mark.        
        Dim unicodeLittleEndianBOM As New UnicodeEncoding(False, True)
        ' Compare this UnicodeEncoding to the UnicodeEncoding without parameters.
        DescribeEquivalence(unicodeDefault.Equals(unicodeLittleEndianBOM))
        
        ' Create a UnicodeEncoding to support little-endian byte ordering
        ' and not include the Unicode byte order mark.
        Dim unicodeLittleEndianNoBOM As New UnicodeEncoding(False, False)
        ' Compare this UnicodeEncoding to the UnicodeEncoding without parameters.
        DescribeEquivalence(unicodeDefault.Equals(unicodeLittleEndianNoBOM))
        
        ' Create a UnicodeEncoding to support big-endian byte ordering
        ' and include the Unicode byte order mark.
        Dim unicodeBigEndianBOM As New UnicodeEncoding(True, True)
        ' Compare this UnicodeEncoding to the UnicodeEncoding without parameters.
        DescribeEquivalence(unicodeDefault.Equals(unicodeBigEndianBOM))
        
        ' Create a UnicodeEncoding to support big-endian byte ordering
        ' and not include the Unicode byte order mark.
        Dim unicodeBigEndianNoBOM As New UnicodeEncoding(True, False)
        ' Compare this UnicodeEncoding to the UnicodeEncoding without parameters.
        DescribeEquivalence(unicodeDefault.Equals(unicodeBigEndianNoBOM))
    End Sub
    
    
    Public Shared Sub DescribeEquivalence(isEquivalent As Boolean)
        Dim phrase as String
        If isEquivalent Then
            phrase = "An"
        Else
            phrase = "Not an"
        End If
        Console.WriteLine("{0} equivalent encoding.", phrase)
    End Sub
End Class

[C#] 
using System;
using System.Text;

class UnicodeEncodingExample {
    public static void Main() {

        // Create a UnicodeEncoding without parameters.
        UnicodeEncoding unicode = new UnicodeEncoding();

        // Create a UnicodeEncoding to support little-endian byte ordering
        // and include the Unicode byte order mark.
        UnicodeEncoding unicodeLittleEndianBOM = 
            new UnicodeEncoding(false, true);
        // Compare this UnicodeEncoding to the UnicodeEncoding without parameters.
        DescribeEquivalence(unicode.Equals(unicodeLittleEndianBOM));

        // Create a UnicodeEncoding to support little-endian byte ordering
        // and not include the Unicode byte order mark.
        UnicodeEncoding unicodeLittleEndianNoBOM =
            new UnicodeEncoding(false, false);
        // Compare this UnicodeEncoding to the UnicodeEncoding without parameters.
        DescribeEquivalence(unicode.Equals(unicodeLittleEndianNoBOM));

        // Create a UnicodeEncoding to support big-endian byte ordering
        // and include the Unicode byte order mark.
        UnicodeEncoding unicodeBigEndianBOM =
            new UnicodeEncoding(true, true);
        // Compare this UnicodeEncoding to the UnicodeEncoding without parameters.
        DescribeEquivalence(unicode.Equals(unicodeBigEndianBOM));

        // Create a UnicodeEncoding to support big-endian byte ordering
        // and not include the Unicode byte order mark.
        UnicodeEncoding unicodeBigEndianNoBOM =
            new UnicodeEncoding(true, false);
        // Compare this UnicodeEncoding to the UnicodeEncoding without parameters.
        DescribeEquivalence(unicode.Equals(unicodeBigEndianNoBOM));
    }

    public static void DescribeEquivalence(Boolean isEquivalent) {
        Console.WriteLine(
            "{0} equivalent encoding.", (isEquivalent ? "An" : "Not an")
        );
    }
}

[C++] 
#using <mscorlib.dll>
using namespace System;
using namespace System::Text;

void DescribeEquivalence(Boolean isEquivalent)
{
   Console::WriteLine(S" {0} equivalent encoding.", (isEquivalent ? S"An" : S"Not an"));
}

int main()
{
   // Create a UnicodeEncoding without parameters.
   UnicodeEncoding* unicode = new UnicodeEncoding();

   // Create a UnicodeEncoding to support little-endian Byte ordering
   // and include the Unicode Byte order mark.
   UnicodeEncoding* unicodeLittleEndianBOM = new UnicodeEncoding(false, true);
   // Compare this UnicodeEncoding to the UnicodeEncoding without parameters.
   DescribeEquivalence(unicode -> Equals(unicodeLittleEndianBOM));

   // Create a UnicodeEncoding to support little-endian Byte ordering
   // and not include the Unicode Byte order mark.
   UnicodeEncoding* unicodeLittleEndianNoBOM = new UnicodeEncoding(false, false);
   // Compare this UnicodeEncoding to the UnicodeEncoding with->Item[Out] parameters.

   DescribeEquivalence(unicode -> Equals(unicodeLittleEndianNoBOM));

   // Create a UnicodeEncoding to support big-endian Byte ordering
   // and include the Unicode Byte order mark.
   UnicodeEncoding* unicodeBigEndianBOM = new UnicodeEncoding(true, true);
   // Compare this UnicodeEncoding to the UnicodeEncoding without parameters.

   DescribeEquivalence(unicode -> Equals(unicodeBigEndianBOM));

   // Create a UnicodeEncoding to support big-endian Byte ordering
   // and not include the Unicode Byte order mark.
   UnicodeEncoding* unicodeBigEndianNoBOM = new UnicodeEncoding(true, false);
   // Compare this UnicodeEncoding to the UnicodeEncoding without parameters.

   DescribeEquivalence(unicode -> Equals(unicodeBigEndianNoBOM));
}

[JScript] Für JScript ist kein Beispiel verfügbar. Klicken Sie zum Anzeigen eines Beispiels für Visual Basic, C# oder C++ in der linken oberen Ecke der Seite auf die Schaltfläche "Sprachfilter" .

Anforderungen

Plattformen: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003-Familie, .NET Compact Framework - Windows CE .NET, CLI-Standard (Common Language Infrastructure)

Siehe auch

UnicodeEncoding-Klasse | UnicodeEncoding-Member | System.Text-Namespace