BinaryFormatter.Deserialize Método

Definição

Desserializa um fluxo em um gráfico de objeto.Deserializes a stream into an object graph.

Sobrecargas

Deserialize(Stream)

Desserializa o fluxo especificado em um grafo de objeto.Deserializes the specified stream into an object graph.

Deserialize(Stream, HeaderHandler)

Desserializa o fluxo especificado em um grafo de objeto.Deserializes the specified stream into an object graph. O HeaderHandler fornecido manipula qualquer cabeçalho nesse fluxo.The provided HeaderHandler handles any headers in that stream.

Comentários

Importante

Chamar este método quando você tiver dados não confiáveis é um risco à segurança.Calling this method with untrusted data is a security risk. Chame esse método apenas quando você tiver dados confiáveis.Call this method only with trusted data. Para obter mais informações, confira Validação de dados.For more information, see Data Validation.

Deserialize(Stream)

Desserializa o fluxo especificado em um grafo de objeto.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

Parâmetros

serializationStream
Stream

O fluxo do qual desserializar o grafo do objeto.The stream from which to deserialize the object graph.

Retornos

A parte superior (raiz) do grafo do objeto.The top (root) of the object graph.

Implementações

Exceções

O serializationStream é null.The serializationStream is null.

O serializationStream dá suporte a busca, mas seu tamanho é 0.The serializationStream supports seeking, but its length is 0.

- ou --or- O tipo de destino é um Decimal, mas o valor está fora do intervalo do tipo Decimal.The target type is a Decimal, but the value is out of range of the Decimal type.

O chamador não tem a permissão necessária.The caller does not have the required permission.

Exemplos

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

Comentários

Para a desserialização bem-sucedida, a posição atual no fluxo deve estar no início do grafo do objeto.For successful deserialization, the current position in the stream must be at the beginning of the object graph.

Importante

Chamar este método quando você tiver dados não confiáveis é um risco à segurança.Calling this method with untrusted data is a security risk. Chame esse método apenas quando você tiver dados confiáveis.Call this method only with trusted data. Para obter mais informações, confira Validação de dados.For more information, see Data Validation.

Segurança

SecurityPermission
Para fornecer serviços de serialização.To provide serialization services. Enumeração associada: SerializationFormatter.Associated enumeration: SerializationFormatter.

Deserialize(Stream, HeaderHandler)

Desserializa o fluxo especificado em um grafo de objeto.Deserializes the specified stream into an object graph. O HeaderHandler fornecido manipula qualquer cabeçalho nesse fluxo.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

Parâmetros

serializationStream
Stream

O fluxo do qual desserializar o grafo do objeto.The stream from which to deserialize the object graph.

handler
HeaderHandler

O HeaderHandler que manipula qualquer cabeçalho no serializationStream.The HeaderHandler that handles any headers in the serializationStream. Pode ser null.Can be null.

Retornos

O objeto desserializado ou o objeto superior (raiz) do grafo de objeto.The deserialized object or the top object (root) of the object graph.

Implementações

Exceções

O serializationStream é null.The serializationStream is null.

O serializationStream dá suporte a busca, mas seu tamanho é 0.The serializationStream supports seeking, but its length is 0.

- ou --or- O tipo de destino é um Decimal, mas o valor está fora do intervalo do tipo Decimal.The target type is a Decimal, but the value is out of range of the Decimal type.

O chamador não tem a permissão necessária.The caller does not have the required permission.

Comentários

Os cabeçalhos são usados somente para aplicativos remotos específicos.Headers are used only for specific remoting applications.

Para que a desserialização tenha sucesso, a posição atual no fluxo deve estar no início do grafo do objeto.In order for deserialization to succeed the current position in the stream must be at the beginning of the object graph.

Importante

Chamar este método quando você tiver dados não confiáveis é um risco à segurança.Calling this method with untrusted data is a security risk. Chame esse método apenas quando você tiver dados confiáveis.Call this method only with trusted data. Para obter mais informações, confira Validação de dados.For more information, see Data Validation.

Segurança

SecurityPermission
Para fornecer serviços de serialização.To provide serialization services. Enumeração associada: SerializationFormatter.Associated enumeration: SerializationFormatter.

Aplica-se a