BinaryFormatter Constructores

Definición

Inicializa una nueva instancia de la clase BinaryFormatter.Initializes a new instance of the BinaryFormatter class.

Sobrecargas

BinaryFormatter()

Inicializa una nueva instancia de la clase BinaryFormatter con valores predeterminados.Initializes a new instance of the BinaryFormatter class with default values.

BinaryFormatter(ISurrogateSelector, StreamingContext)

Inicializa una nueva instancia de la clase BinaryFormatter con el selector suplente y el contexto de secuencia especificados.Initializes a new instance of the BinaryFormatter class with a given surrogate selector and streaming context.

BinaryFormatter()

Inicializa una nueva instancia de la clase BinaryFormatter con valores predeterminados.Initializes a new instance of the BinaryFormatter class with default values.

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

Ejemplos

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

Comentarios

Este constructor establece las propiedades del objeto BinaryFormatter de la manera siguiente:This constructor sets the properties of the BinaryFormatter object as follows:

Tipo de propiedadProperty Type CondiciónCondition
SurrogateSelector null
Context StreamingContext Con un valor que indica que los datos serializados se pueden transmitir o recibir desde cualquiera de los otros contextos.A StreamingContext with a value that indicates that serialized data can be transmitted to or received from any of the other contexts. (StreamingContextStates.All)(StreamingContextStates.All)

BinaryFormatter(ISurrogateSelector, StreamingContext)

Inicializa una nueva instancia de la clase BinaryFormatter con el selector suplente y el contexto de secuencia especificados.Initializes a new instance of the BinaryFormatter class with a given surrogate selector and streaming 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)

Parámetros

selector
ISurrogateSelector

Objeto ISurrogateSelector que se va a usar.The ISurrogateSelector to use. Puede ser null.Can be null.

context
StreamingContext

Origen y destino de los datos serializados.The source and destination for the serialized data.

Comentarios

Inicializa un nuevo BinaryFormatter objeto para la serialización o deserialización de objetos a partir Streamde la especificada.Initializes a new BinaryFormatter for serialization or deserialization of objects from the specified Stream.

El proceso de serialización o deserialización utiliza el ISurrogateSelector especificado para buscar los suplentes que se registran para los tipos de objeto que desea deserializar.The serialization or deserialization process uses the specified ISurrogateSelector to search for surrogates that are registered for the object types you want to deserialize. Los suplentes son aplicaciones auxiliares que serializan y deserializan objetos de clases concretas.Surrogates are helpers that serialize and deserialize objects of specific classes. El valor ISurrogateSelector predeterminado no puede controlar la serialización de objetos que derivan MarshalByRefObject de para fines de comunicación remota.The default ISurrogateSelector cannot handle the serialization of objects that derive from the MarshalByRefObject for remoting purposes. En una situación de comunicación remota ISurrogateSelector , el especificado reemplaza el MarshalByRefObject objeto derivado ObjRef de con un objeto serializado por el selector de suplentes especificado.In a remoting situation the specified ISurrogateSelector replaces the object derived from MarshalByRefObject with a ObjRef object that is serialized by the specified surrogate selector. Por lo tanto, si desea usar objetos remotos, establezca selector el parámetro en una instancia RemotingSurrogateSelectorde.Therefore, if you want to use remote objects, set the selector parameter to an instance of RemotingSurrogateSelector. Si no necesita suplentes, establezca el selector parámetro nullen.If you do not need surrogates, set the selector parameter to be null.

Se aplica a