BinaryFormatter Konstruktoren

Definition

Initialisiert eine neue Instanz der BinaryFormatter-Klasse.

Überlädt

BinaryFormatter()

Initialisiert eine neue Instanz der BinaryFormatter-Klasse mit Standardwerten.

BinaryFormatter(ISurrogateSelector, StreamingContext)

Initialisiert eine neue Instanz der BinaryFormatter-Klasse mit einer angegebenen Surrogatauswahl und angegebenem Streamingkontext.

BinaryFormatter()

Initialisiert eine neue Instanz der BinaryFormatter-Klasse mit Standardwerten.

public:
 BinaryFormatter();
public BinaryFormatter ();
Public Sub New ()

Beispiele

using namespace System;
using namespace System::IO;
using namespace System::Collections;
using namespace System::Runtime::Serialization::Formatters::Binary;
using namespace System::Runtime::Serialization;
ref class App
{
public:
   static void Serialize()
   {
      
      // Create a hashtable of values that will eventually be serialized.
      Hashtable^ addresses = gcnew Hashtable;
      addresses->Add( "Jeff", "123 Main Street, Redmond, WA 98052" );
      addresses->Add( "Fred", "987 Pine Road, Phila., PA 19116" );
      addresses->Add( "Mary", "PO Box 112233, Palo Alto, CA 94301" );
      
      // To serialize the hashtable (and its keys/values),  
      // you must first open a stream for writing. 
      // In this case we will use a file stream.
      FileStream^ fs = gcnew FileStream( "DataFile.dat",FileMode::Create );
      
      // Construct a BinaryFormatter and use it to serialize the data to the stream.
      BinaryFormatter^ formatter = gcnew BinaryFormatter;
      try
      {
         formatter->Serialize( fs, addresses );
      }
      catch ( SerializationException^ e ) 
      {
         Console::WriteLine( "Failed to serialize. Reason: {0}", e->Message );
         throw;
      }
      finally
      {
         fs->Close();
      }

   }

   static void Deserialize()
   {
      
      // Declare the hashtable reference.
      Hashtable^ addresses = nullptr;
      
      // Open the file containing the data that we want to deserialize.
      FileStream^ fs = gcnew FileStream( "DataFile.dat",FileMode::Open );
      try
      {
         BinaryFormatter^ formatter = gcnew BinaryFormatter;
         
         // Deserialize the hashtable from the file and 
         // assign the reference to our local variable.
         addresses = dynamic_cast<Hashtable^>(formatter->Deserialize( fs ));
      }
      catch ( SerializationException^ e ) 
      {
         Console::WriteLine( "Failed to deserialize. Reason: {0}", e->Message );
         throw;
      }
      finally
      {
         fs->Close();
      }

      
      // To prove that the table deserialized correctly, display the keys/values.
      IEnumerator^ myEnum = addresses->GetEnumerator();
      while ( myEnum->MoveNext() )
      {
         DictionaryEntry ^ de = safe_cast<DictionaryEntry ^>(myEnum->Current);
         Console::WriteLine( " {0} lives at {1}.", de->Key, de->Value );
      }
   }

};


[STAThread]
int main()
{
   App::Serialize();
   App::Deserialize();
   return 0;
}
using System;
using System.IO;
using System.Collections;
using System.Runtime.Serialization.Formatters.Binary;
using System.Runtime.Serialization;

public class App
{
    [STAThread]
    static void Main()
    {
        Serialize();
        Deserialize();
    }

    static void Serialize()
    {
        // Create a hashtable of values that will eventually be serialized.
        Hashtable addresses = new Hashtable();
        addresses.Add("Jeff", "123 Main Street, Redmond, WA 98052");
        addresses.Add("Fred", "987 Pine Road, Phila., PA 19116");
        addresses.Add("Mary", "PO Box 112233, Palo Alto, CA 94301");

        // To serialize the hashtable and its key/value pairs,
        // you must first open a stream for writing.
        // In this case, use a file stream.
        FileStream fs = new FileStream("DataFile.dat", FileMode.Create);

        // Construct a BinaryFormatter and use it to serialize the data to the stream.
        BinaryFormatter formatter = new BinaryFormatter();
        try
        {
            formatter.Serialize(fs, addresses);
        }
        catch (SerializationException e)
        {
            Console.WriteLine("Failed to serialize. Reason: " + e.Message);
            throw;
        }
        finally
        {
            fs.Close();
        }
    }

    static void Deserialize()
    {
        // Declare the hashtable reference.
        Hashtable addresses  = null;

        // Open the file containing the data that you want to deserialize.
        FileStream fs = new FileStream("DataFile.dat", FileMode.Open);
        try
        {
            BinaryFormatter formatter = new BinaryFormatter();

            // Deserialize the hashtable from the file and
            // assign the reference to the local variable.
            addresses = (Hashtable) formatter.Deserialize(fs);
        }
        catch (SerializationException e)
        {
            Console.WriteLine("Failed to deserialize. Reason: " + e.Message);
            throw;
        }
        finally
        {
            fs.Close();
        }

        // To prove that the table deserialized correctly,
        // display the key/value pairs.
        foreach (DictionaryEntry de in addresses)
        {
            Console.WriteLine("{0} lives at {1}.", de.Key, de.Value);
        }
    }
}
Imports System.IO
Imports System.Collections
Imports System.Runtime.Serialization.Formatters.Binary
Imports System.Runtime.Serialization


Module App

    Sub Main()
        Serialize()
        Deserialize()
    End Sub

    Sub Serialize()

        ' Create a hashtable of values that will eventually be serialized.
        Dim addresses As New Hashtable
        addresses.Add("Jeff", "123 Main Street, Redmond, WA 98052")
        addresses.Add("Fred", "987 Pine Road, Phila., PA 19116")
        addresses.Add("Mary", "PO Box 112233, Palo Alto, CA 94301")

        ' To serialize the hashtable (and its key/value pairs),  
        ' you must first open a stream for writing. 
        ' In this case, use a file stream.
        Dim fs As New FileStream("DataFile.dat", FileMode.Create)

        ' Construct a BinaryFormatter and use it to serialize the data to the stream.
        Dim formatter As New BinaryFormatter
        Try
            formatter.Serialize(fs, addresses)
        Catch e As SerializationException
            Console.WriteLine("Failed to serialize. Reason: " & e.Message)
            Throw
        Finally
            fs.Close()
        End Try
    End Sub



    Sub Deserialize()
        ' Declare the hashtable reference.
        Dim addresses As Hashtable = Nothing

        ' Open the file containing the data that you want to deserialize.
        Dim fs As New FileStream("DataFile.dat", FileMode.Open)
        Try
            Dim formatter As New BinaryFormatter

            ' Deserialize the hashtable from the file and 
            ' assign the reference to the local variable.
            addresses = DirectCast(formatter.Deserialize(fs), Hashtable)
        Catch e As SerializationException
            Console.WriteLine("Failed to deserialize. Reason: " & e.Message)
            Throw
        Finally
            fs.Close()
        End Try

        ' To prove that the table deserialized correctly, 
        ' display the key/value pairs.
        Dim de As DictionaryEntry
        For Each de In addresses
            Console.WriteLine("{0} lives at {1}.", de.Key, de.Value)
        Next
    End Sub
End Module

Hinweise

Dieser Konstruktor legt die Eigenschaften des BinaryFormatter -Objekts wie folgt fest:

Eigenschaftstyp Bedingung
SurrogateSelector null
Context Ein mit einem Wert, der angibt, dass serialisierte Daten an einen der anderen Kontexte übertragen oder von diesem StreamingContext empfangen werden können. (StreamingContextStates.All)

Gilt für

BinaryFormatter(ISurrogateSelector, StreamingContext)

Initialisiert eine neue Instanz der BinaryFormatter-Klasse mit einer angegebenen Surrogatauswahl und angegebenem Streamingkontext.

public:
 BinaryFormatter(System::Runtime::Serialization::ISurrogateSelector ^ selector, System::Runtime::Serialization::StreamingContext context);
public BinaryFormatter (System.Runtime.Serialization.ISurrogateSelector? selector, System.Runtime.Serialization.StreamingContext context);
public BinaryFormatter (System.Runtime.Serialization.ISurrogateSelector selector, System.Runtime.Serialization.StreamingContext context);
new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter : System.Runtime.Serialization.ISurrogateSelector * System.Runtime.Serialization.StreamingContext -> System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
Public Sub New (selector As ISurrogateSelector, context As StreamingContext)

Parameter

selector
ISurrogateSelector

Der zu verwendende ISurrogateSelector. Kann null sein.

context
StreamingContext

Die Quelle und das Ziel für die serialisierten Daten.

Hinweise

Initialisiert eine neue BinaryFormatter für die Serialisierung oder Deserialisierung von -Objekten aus dem angegebenen Stream .

Der Serialisierungs- oder Deserialisierungsprozess verwendet den angegebenen , um nach Ersatzzeichen zu suchen, die für die Objekttypen registriert sind, die Sie ISurrogateSelector deserialisieren möchten. Ersatzzeichen sind Hilfsobjekte, die Objekte bestimmter Klassen serialisieren und deserialisieren. Der Standardwert kann die Serialisierung von Objekten, die von der ISurrogateSelector für MarshalByRefObject Remotingzwecke ableiten, nicht verarbeiten. In einer Remotingsituation ersetzt der angegebene das von abgeleitete Objekt durch ein -Objekt, das durch die angegebene Ersatzzeichenauswahl ISurrogateSelector MarshalByRefObject ObjRef serialisiert wird. Wenn Sie Remoteobjekte verwenden möchten, legen Sie daher den selector -Parameter auf eine Instanz von RemotingSurrogateSelector fest. Wenn Sie keine Ersatzzeichen benötigen, legen Sie den selector Parameter auf null fest.

Gilt für