BinaryFormatter BinaryFormatter BinaryFormatter BinaryFormatter Constructors

定義

多載

BinaryFormatter() BinaryFormatter() BinaryFormatter()

使用預設值,初始化 BinaryFormatter 類別的新執行個體。Initializes a new instance of the BinaryFormatter class with default values.

BinaryFormatter(ISurrogateSelector, StreamingContext) BinaryFormatter(ISurrogateSelector, StreamingContext) BinaryFormatter(ISurrogateSelector, StreamingContext) BinaryFormatter(ISurrogateSelector, StreamingContext)

使用指定的代理選取器和資料流內容,初始化 BinaryFormatter 類別的新執行個體。Initializes a new instance of the BinaryFormatter class with a given surrogate selector and streaming context.

BinaryFormatter() BinaryFormatter() BinaryFormatter()

使用預設值,初始化 BinaryFormatter 類別的新執行個體。Initializes a new instance of the BinaryFormatter class with default values.

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

範例

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

備註

此函式會設定BinaryFormatter物件的屬性, 如下所示:This constructor sets the properties of the BinaryFormatter object as follows:

屬性類型Property Type 條件Condition
SurrogateSelector null
Context StreamingContext具有值的, 指出序列化的資料可以傳送至任何其他內容或從中接收。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) BinaryFormatter(ISurrogateSelector, StreamingContext) BinaryFormatter(ISurrogateSelector, StreamingContext) BinaryFormatter(ISurrogateSelector, StreamingContext)

使用指定的代理選取器和資料流內容,初始化 BinaryFormatter 類別的新執行個體。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)

參數

selector
ISurrogateSelector ISurrogateSelector ISurrogateSelector ISurrogateSelector

要使用的 ISurrogateSelectorThe ISurrogateSelector to use. 可以是 nullCan be null.

context
StreamingContext StreamingContext StreamingContext StreamingContext

用於序列化資料的來源和目的端。The source and destination for the serialized data.

備註

初始化新BinaryFormatter的, 以便從指定Stream的序列化或還原序列化物件。Initializes a new BinaryFormatter for serialization or deserialization of objects from the specified Stream.

序列化或還原序列化程式會使用指定ISurrogateSelector的, 來搜尋已針對您要還原序列化之物件類型註冊的代理。The serialization or deserialization process uses the specified ISurrogateSelector to search for surrogates that are registered for the object types you want to deserialize. 代理程式是將特定類別的物件序列化和還原序列化的 helper。Surrogates are helpers that serialize and deserialize objects of specific classes. 預設ISurrogateSelector無法處理衍生MarshalByRefObject自之物件的序列化, 以進行遠端處理。The default ISurrogateSelector cannot handle the serialization of objects that derive from the MarshalByRefObject for remoting purposes. 在遠端處理情況中, ISurrogateSelector指定的會將衍生MarshalByRefObjectObjRef的物件取代為由指定的代理選取器序列化的物件。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. 因此, 如果您想要使用遠端物件, 請將selector參數設定為的RemotingSurrogateSelector實例。Therefore, if you want to use remote objects, set the selector parameter to an instance of RemotingSurrogateSelector. 如果您不需要代理, 請將selector參數設定null為。If you do not need surrogates, set the selector parameter to be null.

適用於