SerializationInfo SerializationInfo SerializationInfo SerializationInfo Class

定义

存储对对象进行序列化或反序列化所需的全部数据。Stores all the data needed to serialize or deserialize an object. 此类不能被继承。This class cannot be inherited.

public ref class SerializationInfo sealed
[System.Runtime.InteropServices.ComVisible(true)]
public sealed class SerializationInfo
type SerializationInfo = class
Public NotInheritable Class SerializationInfo
继承
SerializationInfoSerializationInfoSerializationInfoSerializationInfo
属性

示例

下面的代码示例演示了SerializationInfo进行自定义序列化和反序列化的各种不同的值。The following code example demonstrates the SerializationInfo for custom serialization and deserialization of various values.

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 SingletonSerializationHelper;

// There should be only one instance of this type per AppDomain.

[Serializable]
public ref class Singleton sealed: public ISerializable
{
private:

   // This is the one instance of this type.
   static Singleton^ theOneObject = gcnew Singleton;

public:

   // Here are the instance fields.
   String^ someString;
   Int32 someNumber;

private:

   // Private constructor allowing this type to construct the singleton.
   Singleton()
   {
      
      // Do whatever is necessary to initialize the singleton.
      someString = "This is a String* field";
      someNumber = 123;
   }

public:

   // A method returning a reference to the singleton.
   static Singleton^ GetSingleton()
   {
      return theOneObject;
   }

   // A method called when serializing a Singleton.
   [System::Security::Permissions::SecurityPermissionAttribute
   (System::Security::Permissions::SecurityAction::LinkDemand, 
   Flags=System::Security::Permissions::SecurityPermissionFlag::SerializationFormatter)]
   virtual void GetObjectData( SerializationInfo^ info, StreamingContext context )
   {
      // Instead of serializing this Object*, we will  
      // serialize a SingletonSerializationHelp instead.
      info->SetType( SingletonSerializationHelper::typeid );

      // No other values need to be added.
   }

   // NOTE: ISerializable*'s special constructor is NOT necessary 
   // because it's never called
};

[Serializable]
private ref class SingletonSerializationHelper sealed: public IObjectReference
{
public:

   // This Object* has no fields (although it could).
   // GetRealObject is called after this Object* is deserialized
   virtual Object^ GetRealObject( StreamingContext context )
   {
      // When deserialiing this Object*, return a reference to 
      // the singleton Object* instead.
      return Singleton::GetSingleton();
   }
};

[STAThread]
int main()
{
   FileStream^ fs = gcnew FileStream( "DataFile.dat",FileMode::Create );
   try
   {
      // Construct a BinaryFormatter and use it 
      // to serialize the data to the stream.
      BinaryFormatter^ formatter = gcnew BinaryFormatter;

      // Create an array with multiple elements refering to 
      // the one Singleton Object*.
      array<Singleton^>^a1 = {Singleton::GetSingleton(),Singleton::GetSingleton()};

      // This displays S"True".
      Console::WriteLine( "Do both array elements refer to the same Object? {0}", (a1[ 0 ] == a1[ 1 ]) );

      // Serialize the array elements.
      formatter->Serialize( fs, a1 );

      // Deserialize the array elements.
      fs->Position = 0;
      array<Singleton^>^a2 = (array<Singleton^>^)formatter->Deserialize( fs );

      // This displays S"True".
      Console::WriteLine( "Do both array elements refer to the same Object? {0}", (a2[ 0 ] == a2[ 1 ]) );

      // This displays S"True".
      Console::WriteLine( "Do all  array elements refer to the same Object? {0}", (a1[ 0 ] == a2[ 0 ]) );
   }
   catch ( SerializationException^ e ) 
   {
      Console::WriteLine( "Failed to serialize. Reason: {0}", e->Message );
      throw;
   }
   finally
   {
      fs->Close();
   }

   return 0;
}
using System;
using System.Text;
using System.IO;
// Add references to Soap and Binary formatters.
using System.Runtime.Serialization.Formatters.Binary;
using System.Runtime.Serialization.Formatters.Soap ;
using System.Runtime.Serialization;


[Serializable]
public class MyItemType : ISerializable
{
    public MyItemType()
    {
        // Empty constructor required to compile.
    }

    // The value to serialize.
    private string myProperty_value;

    public string MyProperty
    {
        get { return myProperty_value; }
        set { myProperty_value = value; }
    }
        
    // Implement this method to serialize data. The method is called 
    // on serialization.
    public void GetObjectData(SerializationInfo info, StreamingContext context)
    {
        // Use the AddValue method to specify serialized values.
        info.AddValue("props", myProperty_value, typeof(string));

    }

    // The special constructor is used to deserialize values.
    public MyItemType(SerializationInfo info, StreamingContext context)
    {
        // Reset the property value using the GetValue method.
        myProperty_value = (string) info.GetValue("props", typeof(string));
    }
}

// This is a console application. 
public static class Test
{
    static void Main()
    {
        // This is the name of the file holding the data. You can use any file extension you like.
        string fileName = "dataStuff.myData";

        // Use a BinaryFormatter or SoapFormatter.
        IFormatter formatter = new BinaryFormatter();
        //IFormatter formatter = new SoapFormatter();
            
        Test.SerializeItem(fileName, formatter); // Serialize an instance of the class.
        Test.DeserializeItem(fileName, formatter); // Deserialize the instance.
        Console.WriteLine("Done");
        Console.ReadLine();
    }

    public static void SerializeItem(string fileName, IFormatter formatter)
    {
        // Create an instance of the type and serialize it.
        MyItemType t = new MyItemType();
        t.MyProperty = "Hello World";

        FileStream s = new FileStream(fileName , FileMode.Create);
        formatter.Serialize(s, t);            
        s.Close();
    }


    public static void DeserializeItem(string fileName, IFormatter formatter)
    {
        FileStream s = new FileStream(fileName, FileMode.Open);
        MyItemType t = (MyItemType)formatter.Deserialize(s);
        Console.WriteLine(t.MyProperty);            
    }       
}
Imports System.Text
Imports System.IO
' Add references to Soap and Binary formatters.
Imports System.Runtime.Serialization.Formatters.Binary
Imports System.Runtime.Serialization.Formatters.Soap
Imports System.Runtime.Serialization


<Serializable()> _
Public Class MyItemType
    Implements ISerializable
    ' Empty constructor required to compile.
    Public Sub New()
    End Sub

    ' The value to serialize.
    Private myProperty_value As String

    Public Property MyProperty() As String
        Get
            Return myProperty_value
        End Get
        Set(value As String)
            myProperty_value = value
        End Set
    End Property

    ' Implement this method to serialize data. The method is called 
    ' on serialization.
    Public Sub GetObjectData(info As SerializationInfo, context As StreamingContext) Implements ISerializable.GetObjectData
        ' Use the AddValue method to specify serialized values.
        info.AddValue("props", myProperty_value, GetType(String))

    End Sub

    ' The special constructor is used to deserialize values.
    Public Sub New(info As SerializationInfo, context As StreamingContext)
        ' Reset the property value using the GetValue method.
        myProperty_value = DirectCast(info.GetValue("props", GetType(String)), String)
    End Sub
End Class

' This is a console application. 
Public Class Test


    Public Shared Sub Main()
        ' This is the name of the file holding the data. You can use any file extension you like.
        Dim fileName As String = "dataStuff.myData"

        ' Use a BinaryFormatter or SoapFormatter.
        Dim formatter As IFormatter = New BinaryFormatter()
        ' Dim formatter As IFormatter = New SoapFormatter()

        Test.SerializeItem(fileName, formatter)
        ' Serialize an instance of the class.
        Test.DeserializeItem(fileName, formatter)
        ' Deserialize the instance.
        Console.WriteLine("Done")
        Console.ReadLine()
    End Sub

    Public Shared Sub SerializeItem(fileName As String, formatter As IFormatter)
        ' Create an instance of the type and serialize it.
        Dim myType As New MyItemType()
        myType.MyProperty = "Hello World"

        Dim fs As New FileStream(fileName, FileMode.Create)
        formatter.Serialize(fs, myType)
        fs.Close()
    End Sub


    Public Shared Sub DeserializeItem(fileName As String, formatter As IFormatter)
        Dim fs As New FileStream(fileName, FileMode.Open)

        Dim myType As MyItemType = DirectCast(formatter.Deserialize(fs), MyItemType)
        Console.WriteLine(myType.MyProperty)
    End Sub
End Class

注解

此类可供具有自定义序列化行为的对象。This class is used by objects with custom serialization behavior. GetObjectData上的方法ISerializableISerializationSurrogate填充SerializationInfo存储的名称、 类型和它要序列化的信息的每个段的值。The GetObjectData method on either ISerializable or ISerializationSurrogate populates the SerializationInfo store with the name, type, and value of each piece of information it wants to serialize. 在反序列化,相应的函数可以提取此信息。During deserialization, the appropriate function can extract this information.

对象添加到SerializationInfo存储在序列化时使用AddValue方法并从提取SerializationInfo存储在反序列化使用GetValue方法。Objects are added to the SerializationInfo store at serialization time using the AddValue methods and extracted from the SerializationInfo store at deserialization using the GetValue methods.

有关自定义序列化的详细信息,请参阅自定义序列化For more information about customizing serialization, see Custom Serialization.

构造函数

SerializationInfo(Type, IFormatterConverter) SerializationInfo(Type, IFormatterConverter) SerializationInfo(Type, IFormatterConverter) SerializationInfo(Type, IFormatterConverter)

创建 SerializationInfo 类的新实例。Creates a new instance of the SerializationInfo class.

SerializationInfo(Type, IFormatterConverter, Boolean) SerializationInfo(Type, IFormatterConverter, Boolean) SerializationInfo(Type, IFormatterConverter, Boolean) SerializationInfo(Type, IFormatterConverter, Boolean)

初始化 SerializationInfo 类的新实例。Initializes a new instance of the SerializationInfo class.

属性

AssemblyName AssemblyName AssemblyName AssemblyName

仅在序列化期间获取或设置要序列化的类型的程序集名称。Gets or sets the assembly name of the type to serialize during serialization only.

FullTypeName FullTypeName FullTypeName FullTypeName

获取或设置要序列化的 Type 的全名。Gets or sets the full name of the Type to serialize.

IsAssemblyNameSetExplicit IsAssemblyNameSetExplicit IsAssemblyNameSetExplicit IsAssemblyNameSetExplicit

获取是否已显式设置程序集名称。Gets whether the assembly name has been explicitly set.

IsFullTypeNameSetExplicit IsFullTypeNameSetExplicit IsFullTypeNameSetExplicit IsFullTypeNameSetExplicit

获取是否已显式设置完整类型名称。Gets whether the full type name has been explicitly set.

MemberCount MemberCount MemberCount MemberCount

获取已添加到 SerializationInfo 存储中的成员数目。Gets the number of members that have been added to the SerializationInfo store.

ObjectType ObjectType ObjectType ObjectType

返回要串行化的对象的类型。Returns the type of the object to be serialized.

方法

AddValue(String, Boolean) AddValue(String, Boolean) AddValue(String, Boolean) AddValue(String, Boolean)

SerializationInfo 存储中添加一个布尔值。Adds a Boolean value into the SerializationInfo store.

AddValue(String, Byte) AddValue(String, Byte) AddValue(String, Byte) AddValue(String, Byte)

SerializationInfo 存储添加一个 8 位无符号整数值。Adds an 8-bit unsigned integer value into the SerializationInfo store.

AddValue(String, Char) AddValue(String, Char) AddValue(String, Char) AddValue(String, Char)

SerializationInfo 存储添加一个 Unicode 字符值。Adds a Unicode character value into the SerializationInfo store.

AddValue(String, DateTime) AddValue(String, DateTime) AddValue(String, DateTime) AddValue(String, DateTime)

SerializationInfo 存储添加一个 DateTime 值。Adds a DateTime value into the SerializationInfo store.

AddValue(String, Decimal) AddValue(String, Decimal) AddValue(String, Decimal) AddValue(String, Decimal)

SerializationInfo 存储添加一个十进制值。Adds a decimal value into the SerializationInfo store.

AddValue(String, Double) AddValue(String, Double) AddValue(String, Double) AddValue(String, Double)

SerializationInfo 存储添加一个双精度浮点值。Adds a double-precision floating-point value into the SerializationInfo store.

AddValue(String, Int16) AddValue(String, Int16) AddValue(String, Int16) AddValue(String, Int16)

SerializationInfo 存储添加一个 16 位带符号整数值。Adds a 16-bit signed integer value into the SerializationInfo store.

AddValue(String, Int32) AddValue(String, Int32) AddValue(String, Int32) AddValue(String, Int32)

SerializationInfo 存储添加一个 32 位带符号整数值。Adds a 32-bit signed integer value into the SerializationInfo store.

AddValue(String, Int64) AddValue(String, Int64) AddValue(String, Int64) AddValue(String, Int64)

SerializationInfo 存储添加一个 64 位带符号整数值。Adds a 64-bit signed integer value into the SerializationInfo store.

AddValue(String, Object) AddValue(String, Object) AddValue(String, Object) AddValue(String, Object)

将指定的对象添加到与指定的名称关联的 SerializationInfo 存储。Adds the specified object into the SerializationInfo store, where it is associated with a specified name.

AddValue(String, Object, Type) AddValue(String, Object, Type) AddValue(String, Object, Type) AddValue(String, Object, Type)

将一个值添加到 SerializationInfo 存储中,其中 valuename 相关联,并串行化为 TypetypeAdds a value into the SerializationInfo store, where value is associated with name and is serialized as being of Typetype.

AddValue(String, SByte) AddValue(String, SByte) AddValue(String, SByte) AddValue(String, SByte)

SerializationInfo 存储添加一个 8 位带符号整数值。Adds an 8-bit signed integer value into the SerializationInfo store.

AddValue(String, Single) AddValue(String, Single) AddValue(String, Single) AddValue(String, Single)

SerializationInfo 存储添加一个单精度浮点值。Adds a single-precision floating-point value into the SerializationInfo store.

AddValue(String, UInt16) AddValue(String, UInt16) AddValue(String, UInt16) AddValue(String, UInt16)

SerializationInfo 存储添加一个 16 位无符号整数值。Adds a 16-bit unsigned integer value into the SerializationInfo store.

AddValue(String, UInt32) AddValue(String, UInt32) AddValue(String, UInt32) AddValue(String, UInt32)

SerializationInfo 存储添加一个 32 位无符号整数值。Adds a 32-bit unsigned integer value into the SerializationInfo store.

AddValue(String, UInt64) AddValue(String, UInt64) AddValue(String, UInt64) AddValue(String, UInt64)

SerializationInfo 存储添加一个 64 位无符号整数值。Adds a 64-bit unsigned integer value into the SerializationInfo store.

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

确定指定的对象是否等于当前对象。Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetBoolean(String) GetBoolean(String) GetBoolean(String) GetBoolean(String)

SerializationInfo 存储中检索一个布尔值。Retrieves a Boolean value from the SerializationInfo store.

GetByte(String) GetByte(String) GetByte(String) GetByte(String)

SerializationInfo 存储中检索一个 8 位无符号整数值。Retrieves an 8-bit unsigned integer value from the SerializationInfo store.

GetChar(String) GetChar(String) GetChar(String) GetChar(String)

SerializationInfo 存储中检索一个 Unicode 字符值。Retrieves a Unicode character value from the SerializationInfo store.

GetDateTime(String) GetDateTime(String) GetDateTime(String) GetDateTime(String)

DateTime 存储中检索一个 SerializationInfo 值。Retrieves a DateTime value from the SerializationInfo store.

GetDecimal(String) GetDecimal(String) GetDecimal(String) GetDecimal(String)

SerializationInfo 存储中检索一个十进制值。Retrieves a decimal value from the SerializationInfo store.

GetDouble(String) GetDouble(String) GetDouble(String) GetDouble(String)

SerializationInfo 存储中检索一个双精度浮点值。Retrieves a double-precision floating-point value from the SerializationInfo store.

GetEnumerator() GetEnumerator() GetEnumerator() GetEnumerator()

返回一个 SerializationInfoEnumerator,用于循环访问 SerializationInfo 存储中的名称/值对。Returns a SerializationInfoEnumerator used to iterate through the name-value pairs in the SerializationInfo store.

GetHashCode() GetHashCode() GetHashCode() GetHashCode()

作为默认哈希函数。Serves as the default hash function.

(Inherited from Object)
GetInt16(String) GetInt16(String) GetInt16(String) GetInt16(String)

SerializationInfo 存储中检索一个 16 位带符号整数值。Retrieves a 16-bit signed integer value from the SerializationInfo store.

GetInt32(String) GetInt32(String) GetInt32(String) GetInt32(String)

SerializationInfo 存储中检索一个 32 位带符号整数值。Retrieves a 32-bit signed integer value from the SerializationInfo store.

GetInt64(String) GetInt64(String) GetInt64(String) GetInt64(String)

SerializationInfo 存储中检索一个 64 位带符号整数值。Retrieves a 64-bit signed integer value from the SerializationInfo store.

GetSByte(String) GetSByte(String) GetSByte(String) GetSByte(String)

SerializationInfo 存储中检索一个 8 位带符号整数值。Retrieves an 8-bit signed integer value from the SerializationInfo store.

GetSingle(String) GetSingle(String) GetSingle(String) GetSingle(String)

SerializationInfo 存储中检索一个单精度浮点值。Retrieves a single-precision floating-point value from the SerializationInfo store.

GetString(String) GetString(String) GetString(String) GetString(String)

String 存储中检索一个 SerializationInfo 值。Retrieves a String value from the SerializationInfo store.

GetType() GetType() GetType() GetType()

获取当前实例的 TypeGets the Type of the current instance.

(Inherited from Object)
GetUInt16(String) GetUInt16(String) GetUInt16(String) GetUInt16(String)

SerializationInfo 存储中检索一个 16 位无符号整数值。Retrieves a 16-bit unsigned integer value from the SerializationInfo store.

GetUInt32(String) GetUInt32(String) GetUInt32(String) GetUInt32(String)

SerializationInfo 存储中检索一个 32 位无符号整数值。Retrieves a 32-bit unsigned integer value from the SerializationInfo store.

GetUInt64(String) GetUInt64(String) GetUInt64(String) GetUInt64(String)

SerializationInfo 存储中检索一个 64 位无符号整数值。Retrieves a 64-bit unsigned integer value from the SerializationInfo store.

GetValue(String, Type) GetValue(String, Type) GetValue(String, Type) GetValue(String, Type)

SerializationInfo 存储中检索一个值。Retrieves a value from the SerializationInfo store.

MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

创建当前 Object 的浅表副本。Creates a shallow copy of the current Object.

(Inherited from Object)
SetType(Type) SetType(Type) SetType(Type) SetType(Type)

设置要序列化的对象的 TypeSets the Type of the object to serialize.

ToString() ToString() ToString() ToString()

返回表示当前对象的字符串。Returns a string that represents the current object.

(Inherited from Object)

适用于

另请参阅