BinaryFormatter.Deserialize Metoda

Definicja

Deserializacji strumienia do grafu obiektów.Deserializes a stream into an object graph.

Przeciążenia

Deserialize(Stream)

Deserializacji określonego strumienia do grafu obiektów.Deserializes the specified stream into an object graph.

Deserialize(Stream, HeaderHandler)

Deserializacji określonego strumienia do grafu obiektów.Deserializes the specified stream into an object graph. Podane HeaderHandler obsługuje wszystkie nagłówki w tym strumieniu.The provided HeaderHandler handles any headers in that stream.

Uwagi

Ważne

Wywołanie tej metody z niezaufanych danych stanowi zagrożenie bezpieczeństwa.Calling this method with untrusted data is a security risk. Wywołanie tej metody tylko z zaufanych danych.Call this method only with trusted data. Aby uzyskać więcej informacji, zobacz Sprawdzanie poprawności danych.For more information, see Data Validation.

Deserialize(Stream)

Deserializacji określonego strumienia do grafu obiektów.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

Parametry

serializationStream
Stream

Strumień, z którego ma zostać rozszeregowanie grafu obiektów.The stream from which to deserialize the object graph.

Zwraca

Górny (główny) grafu obiektów.The top (root) of the object graph.

Implementuje

Wyjątki

serializationStream jest null.The serializationStream is null.

serializationStream obsługuje wyszukiwanie, ale jego długość wynosi 0.The serializationStream supports seeking, but its length is 0.

— lub —-or- Typ docelowy to Decimal, ale wartość jest spoza zakresu typu Decimal.The target type is a Decimal, but the value is out of range of the Decimal type.

Element wywołujący nie ma wymaganego uprawnienia.The caller does not have the required permission.

Przykłady

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

Uwagi

W celu pomyślnej deserializacji bieżąca pozycja w strumieniu musi znajdować się na początku grafu obiektów.For successful deserialization, the current position in the stream must be at the beginning of the object graph.

Ważne

Wywołanie tej metody z niezaufanych danych stanowi zagrożenie bezpieczeństwa.Calling this method with untrusted data is a security risk. Wywołanie tej metody tylko z zaufanych danych.Call this method only with trusted data. Aby uzyskać więcej informacji, zobacz Sprawdzanie poprawności danych.For more information, see Data Validation.

Deserialize(Stream, HeaderHandler)

Deserializacji określonego strumienia do grafu obiektów.Deserializes the specified stream into an object graph. Podane HeaderHandler obsługuje wszystkie nagłówki w tym strumieniu.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

Parametry

serializationStream
Stream

Strumień, z którego ma zostać rozszeregowanie grafu obiektów.The stream from which to deserialize the object graph.

handler
HeaderHandler

HeaderHandler, która obsługuje wszystkie nagłówki w serializationStream.The HeaderHandler that handles any headers in the serializationStream. Może być null.Can be null.

Zwraca

Obiekt deserializowany lub górny obiekt (główny) grafu obiektów.The deserialized object or the top object (root) of the object graph.

Implementuje

Wyjątki

serializationStream jest null.The serializationStream is null.

serializationStream obsługuje wyszukiwanie, ale jego długość wynosi 0.The serializationStream supports seeking, but its length is 0.

— lub —-or- Typ docelowy to Decimal, ale wartość jest spoza zakresu typu Decimal.The target type is a Decimal, but the value is out of range of the Decimal type.

Element wywołujący nie ma wymaganego uprawnienia.The caller does not have the required permission.

Uwagi

Nagłówki są używane tylko dla określonych aplikacji zdalnych.Headers are used only for specific remoting applications.

Aby deserializacja powiodła się, bieżąca pozycja w strumieniu musi znajdować się na początku grafu obiektów.In order for deserialization to succeed the current position in the stream must be at the beginning of the object graph.

Ważne

Wywołanie tej metody z niezaufanych danych stanowi zagrożenie bezpieczeństwa.Calling this method with untrusted data is a security risk. Wywołanie tej metody tylko z zaufanych danych.Call this method only with trusted data. Aby uzyskać więcej informacji, zobacz Sprawdzanie poprawności danych.For more information, see Data Validation.

Dotyczy