BinaryFormatter.Deserialize Méthode

Définition

Désérialise un flux dans un graphique d'objets.Deserializes a stream into an object graph.

Surcharges

Deserialize(Stream)

Désérialise le flux spécifié dans un graphique d'objets.Deserializes the specified stream into an object graph.

Deserialize(Stream, HeaderHandler)

Désérialise le flux spécifié dans un graphique d'objets.Deserializes the specified stream into an object graph. Le HeaderHandler fourni gère n'importe quel en-tête dans ce flux.The provided HeaderHandler handles any headers in that stream.

Remarques

Important

L’appel de cette méthode avec des données non approuvées est un risque de sécurité.Calling this method with untrusted data is a security risk. Appelez cette méthode avec des données approuvées uniquement.Call this method only with trusted data. Pour plus d’informations, consultez Validation des données.For more information, see Data Validation.

Deserialize(Stream)

Désérialise le flux spécifié dans un graphique d'objets.Deserializes the specified stream into an object graph.

public:
 virtual System::Object ^ Deserialize(System::IO::Stream ^ serializationStream);
public object Deserialize (System.IO.Stream serializationStream);
abstract member Deserialize : System.IO.Stream -> obj
override this.Deserialize : System.IO.Stream -> obj
Public Function Deserialize (serializationStream As Stream) As Object

Paramètres

serializationStream
Stream

Flux à partir duquel le graphique d'objets doit être désérialisé.The stream from which to deserialize the object graph.

Retours

Objet supérieur (racine) du graphique d'objets.The top (root) of the object graph.

Implémente

Exceptions

serializationStream a la valeur null.The serializationStream is null.

serializationStream prend en charge la recherche, mais sa longueur est nulle.The serializationStream supports seeking, but its length is 0.

ou-or- Le type cible est un Decimal, mais la valeur est en dehors des limites du type Decimal.The target type is a Decimal, but the value is out of range of the Decimal type.

L'appelant n'a pas l'autorisation requise.The caller does not have the required permission.

Exemples

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

Remarques

Pour une désérialisation réussie, la position actuelle dans le flux doit se trouver au début du graphique d’objets.For successful deserialization, the current position in the stream must be at the beginning of the object graph.

Important

L’appel de cette méthode avec des données non approuvées est un risque de sécurité.Calling this method with untrusted data is a security risk. Appelez cette méthode avec des données approuvées uniquement.Call this method only with trusted data. Pour plus d’informations, consultez Validation des données.For more information, see Data Validation.

Sécurité

SecurityPermission
Pour fournir des services de sérialisation.To provide serialization services. Énumération associée : SerializationFormatter.Associated enumeration: SerializationFormatter.

Deserialize(Stream, HeaderHandler)

Désérialise le flux spécifié dans un graphique d'objets.Deserializes the specified stream into an object graph. Le HeaderHandler fourni gère n'importe quel en-tête dans ce flux.The provided HeaderHandler handles any headers in that stream.

public:
 virtual System::Object ^ Deserialize(System::IO::Stream ^ serializationStream, System::Runtime::Remoting::Messaging::HeaderHandler ^ handler);
public object Deserialize (System.IO.Stream serializationStream, System.Runtime.Remoting.Messaging.HeaderHandler handler);
abstract member Deserialize : System.IO.Stream * System.Runtime.Remoting.Messaging.HeaderHandler -> obj
override this.Deserialize : System.IO.Stream * System.Runtime.Remoting.Messaging.HeaderHandler -> obj
Public Function Deserialize (serializationStream As Stream, handler As HeaderHandler) As Object

Paramètres

serializationStream
Stream

Flux à partir duquel le graphique d'objets doit être désérialisé.The stream from which to deserialize the object graph.

handler
HeaderHandler

Le HeaderHandler qui gère n'importe quel en-tête dans serializationStream.The HeaderHandler that handles any headers in the serializationStream. Peut être null.Can be null.

Retours

Objet désérialisé ou objet supérieur (racine) du graphique d'objets.The deserialized object or the top object (root) of the object graph.

Implémente

Exceptions

serializationStream a la valeur null.The serializationStream is null.

serializationStream prend en charge la recherche, mais sa longueur est nulle.The serializationStream supports seeking, but its length is 0.

- ou --or- Le type cible est un Decimal, mais la valeur est en dehors des limites du type Decimal.The target type is a Decimal, but the value is out of range of the Decimal type.

L'appelant n'a pas l'autorisation requise.The caller does not have the required permission.

Remarques

Les en-têtes sont utilisés uniquement pour des applications de communication à distance spécifiques.Headers are used only for specific remoting applications.

Pour que la désérialisation aboutisse à la position actuelle dans le flux, elle doit se trouver au début du graphique d’objets.In order for deserialization to succeed the current position in the stream must be at the beginning of the object graph.

Important

L’appel de cette méthode avec des données non approuvées est un risque de sécurité.Calling this method with untrusted data is a security risk. Appelez cette méthode avec des données approuvées uniquement.Call this method only with trusted data. Pour plus d’informations, consultez Validation des données.For more information, see Data Validation.

Sécurité

SecurityPermission
Pour fournir des services de sérialisation.To provide serialization services. Énumération associée : SerializationFormatter.Associated enumeration: SerializationFormatter.

S’applique à