Exception.GetObjectData 메서드
파생 클래스에서 재정의될 때, 예외에 관한 정보를 SerializationInfo에 설정합니다.
네임스페이스: System
어셈블리: mscorlib(mscorlib.dll)
구문
‘선언
Public Overridable Sub GetObjectData ( _
info As SerializationInfo, _
context As StreamingContext _
)
‘사용 방법
Dim instance As Exception
Dim info As SerializationInfo
Dim context As StreamingContext
instance.GetObjectData(info, context)
public virtual void GetObjectData (
SerializationInfo info,
StreamingContext context
)
public:
virtual void GetObjectData (
SerializationInfo^ info,
StreamingContext context
)
public void GetObjectData (
SerializationInfo info,
StreamingContext context
)
public function GetObjectData (
info : SerializationInfo,
context : StreamingContext
)
매개 변수
- info
throw되는 예외에 대해 serialize된 개체 데이터를 보유하는 SerializationInfo입니다.
- context
소스 또는 대상에 대한 컨텍스트 정보를 포함하는 StreamingContext입니다.
예외
| 예외 형식 | 조건 |
|---|---|
info매개 변수가 null 참조(Visual Basic에서는 Nothing)인 경우 |
설명
GetObjectData는 serialization을 위해 대상으로 하는 모든 예외 개체 데이터를 사용하여 SerializationInfo를 설정합니다. deserialization을 수행하는 동안 스트림을 통해 전송된 SerializationInfo에서 예외가 다시 구성됩니다.
예제
다음 코드 예제에서는 GetObjectData를 구현하는 serialization 가능한 파생 Exception 클래스(두 개의 속성을 일부 변경)를 정의한 다음 serialization을 수행하기 위해 기본 클래스를 호출합니다. 이 예제에서는 0으로 나누기 오류를 강제로 수행한 다음 파생 예외의 인스턴스를 만듭니다. 이 코드에서는 인스턴스를 파일로 serialize하고 이 코드에서 throw하는 새 예외로 파일을 deserialize한 다음 예외 데이터를 catch하여 표시합니다.
' Example for the Exception( SerializationInfo, StreamingContext )
' constructor and the Exception.GetObjectData( SerializationInfo,
' StreamingContext ) method.
'
' If compiling with the Visual Basic compiler (VBC) from the command
' prompt, be sure to add the following switch:
' /reference:System.Runtime.Serialization.Formatters.Soap.dll
Imports System
Imports System.IO
Imports System.Runtime.Serialization
Imports System.Runtime.Serialization.Formatters.Soap
Imports Microsoft.VisualBasic
Imports System.Security.Permissions
Namespace NDP_UE_VB
' Define a serializable derived exception class.
<Serializable()> _
Class SecondLevelException
Inherits Exception
' This public constructor is used by class instantiators.
Public Sub New( message As String, inner As Exception )
MyBase.New( message, inner )
HelpLink = "https://MSDN.Microsoft.com"
Source = "Exception_Class_Samples"
End Sub ' New
' This protected constructor is used for deserialization.
Protected Sub New( info As SerializationInfo, _
context As StreamingContext )
MyBase.New( info, context )
End Sub ' New
' GetObjectData performs a custom serialization.
<SecurityPermissionAttribute(SecurityAction.Demand, _
SerializationFormatter:=True)> _
Overrides Sub GetObjectData( info As SerializationInfo, _
context As StreamingContext)
' Change the case of two properties, and then use the
' method of the base class.
HelpLink = HelpLink.ToLower()
Source = Source.ToUpper()
MyBase.GetObjectData(info, context)
End Sub ' ISerializable.GetObjectData
End Class ' SecondLevelException
Module SerializationDemo
Sub Main()
Console.WriteLine( _
"This example of the Exception constructor " & _
"and Exception.GetObjectData " & vbCrLf & _
"with SerializationInfo and StreamingContext " & _
"parameters generates " & vbCrLf & _
"the following output." & vbCrLf )
' This code forces a division by 0 and catches the
' resulting exception.
Try
Try
Dim zero As Integer = 0
Dim ecks As Integer = 1 \ zero
' Create a new exception to throw again.
Catch ex As Exception
Dim newExcept As New SecondLevelException( _
"Forced a division by 0 and threw " & _
"another exception.", ex )
Console.WriteLine( _
"Forced a division by 0, caught the " & _
"resulting exception, " & vbCrLf & _
"and created a derived exception:" & vbCrLf )
Console.WriteLine( "HelpLink: {0}", _
newExcept.HelpLink )
Console.WriteLine( "Source: {0}", _
newExcept.Source )
' This FileStream is used for the serialization.
Dim stream As New FileStream( _
"NewException.dat", FileMode.Create )
' Serialize the derived exception.
Try
Dim formatter As New SoapFormatter( Nothing, _
New StreamingContext( _
StreamingContextStates.File ) )
formatter.Serialize( stream, newExcept )
' Rewind the stream and deserialize the
' exception.
stream.Position = 0
Dim deserExcept As SecondLevelException = _
CType( formatter.Deserialize( stream ), _
SecondLevelException )
Console.WriteLine( vbCrLf & _
"Serialized the exception, and then " & _
"deserialized the resulting stream " & _
"into a " & vbCrLf & "new exception. " & _
"The deserialization changed the case " & _
"of certain properties:" & vbCrLf )
' Throw the deserialized exception again.
Throw deserExcept
Catch se As SerializationException
Console.WriteLine( "Failed to serialize: {0}", _
se.ToString( ) )
Finally
stream.Close( )
End Try
End Try
Catch ex As Exception
Console.WriteLine( "HelpLink: {0}", ex.HelpLink )
Console.WriteLine( "Source: {0}", ex.Source )
Console.WriteLine( )
Console.WriteLine( ex.ToString( ) )
End Try
End Sub ' Main
End Module ' SerializationDemo
End Namespace ' NDP_UE_VB
' This example of the Exception constructor and Exception.GetObjectData
' with SerializationInfo and StreamingContext parameters generates
' the following output.
'
' Forced a division by 0, caught the resulting exception,
' and created a derived exception:
'
' HelpLink: https://MSDN.Microsoft.com
' Source: Exception_Class_Samples
'
' Serialized the exception, and then deserialized the resulting stream into a
' new exception. The deserialization changed the case of certain properties:
'
' HelpLink: https://msdn.microsoft.com
' Source: EXCEPTION_CLASS_SAMPLES
'
' NDP_UE_VB.SecondLevelException: Forced a division by 0 and threw another exce
' ption. ---> System.DivideByZeroException: Attempted to divide by zero.
' at NDP_UE_VB.SerializationDemo.Main()
' --- End of inner exception stack trace ---
' at NDP_UE_VB.SerializationDemo.Main()
// Example for the Exception( SerializationInfo, StreamingContext )
// constructor and the Exception.GetObjectData( SerializationInfo,
// StreamingContext ) method.
using System;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Soap;
using System.Security.Permissions;
namespace NDP_UE_CS
{
// Define a serializable derived exception class.
[Serializable()]
class SecondLevelException : Exception, ISerializable
{
// This public constructor is used by class instantiators.
public SecondLevelException( string message, Exception inner ) :
base( message, inner )
{
HelpLink = "https://MSDN.Microsoft.com";
Source = "Exception_Class_Samples";
}
// This protected constructor is used for deserialization.
protected SecondLevelException( SerializationInfo info,
StreamingContext context ) :
base( info, context )
{ }
// GetObjectData performs a custom serialization.
[SecurityPermissionAttribute(SecurityAction.Demand,SerializationFormatter=true)]
public override void GetObjectData( SerializationInfo info,
StreamingContext context )
{
// Change the case of two properties, and then use the
// method of the base class.
HelpLink = HelpLink.ToLower( );
Source = Source.ToUpper( );
base.GetObjectData( info, context );
}
}
class SerializationDemo
{
public static void Main()
{
Console.WriteLine(
"This example of the Exception constructor " +
"and Exception.GetObjectData\nwith Serialization" +
"Info and StreamingContext parameters " +
"generates \nthe following output.\n" );
try
{
// This code forces a division by 0 and catches the
// resulting exception.
try
{
int zero = 0;
int ecks = 1 / zero;
}
catch( Exception ex )
{
// Create a new exception to throw again.
SecondLevelException newExcept =
new SecondLevelException(
"Forced a division by 0 and threw " +
"another exception.", ex );
Console.WriteLine(
"Forced a division by 0, caught the " +
"resulting exception, \n" +
"and created a derived exception:\n" );
Console.WriteLine( "HelpLink: {0}",
newExcept.HelpLink );
Console.WriteLine( "Source: {0}",
newExcept.Source );
// This FileStream is used for the serialization.
FileStream stream =
new FileStream( "NewException.dat",
FileMode.Create );
try
{
// Serialize the derived exception.
SoapFormatter formatter =
new SoapFormatter( null,
new StreamingContext(
StreamingContextStates.File ) );
formatter.Serialize( stream, newExcept );
// Rewind the stream and deserialize the
// exception.
stream.Position = 0;
SecondLevelException deserExcept =
(SecondLevelException)
formatter.Deserialize( stream );
Console.WriteLine(
"\nSerialized the exception, and then " +
"deserialized the resulting stream " +
"into a \nnew exception. " +
"The deserialization changed the case " +
"of certain properties:\n" );
// Throw the deserialized exception again.
throw deserExcept;
}
catch( SerializationException se )
{
Console.WriteLine( "Failed to serialize: {0}",
se.ToString( ) );
}
finally
{
stream.Close( );
}
}
}
catch( Exception ex )
{
Console.WriteLine( "HelpLink: {0}", ex.HelpLink );
Console.WriteLine( "Source: {0}", ex.Source );
Console.WriteLine( );
Console.WriteLine( ex.ToString( ) );
}
}
}
}
/*
This example of the Exception constructor and Exception.GetObjectData
with SerializationInfo and StreamingContext parameters generates
the following output.
Forced a division by 0, caught the resulting exception,
and created a derived exception:
HelpLink: https://MSDN.Microsoft.com
Source: Exception_Class_Samples
Serialized the exception, and then deserialized the resulting stream into a
new exception. The deserialization changed the case of certain properties:
HelpLink: https://msdn.microsoft.com
Source: EXCEPTION_CLASS_SAMPLES
NDP_UE_CS.SecondLevelException: Forced a division by 0 and threw another except
ion. ---> System.DivideByZeroException: Attempted to divide by zero.
at NDP_UE_CS.SerializationDemo.Main()
--- End of inner exception stack trace ---
at NDP_UE_CS.SerializationDemo.Main()
*/
// Example for the Exception( SerializationInfo, StreamingContext )
// constructor and the Exception.GetObjectData( SerializationInfo,
// StreamingContext ) method.
#using <System.Runtime.Serialization.Formatters.Soap.dll>
using namespace System;
using namespace System::IO;
using namespace System::Runtime::Serialization;
using namespace System::Runtime::Serialization::Formatters::Soap;
// Define a serializable derived exception class.
[Serializable]
ref class SecondLevelException: public Exception, public ISerializable
{
public:
// This public constructor is used by class instantiators.
SecondLevelException( String^ message, Exception^ inner )
: Exception( message, inner )
{
HelpLink = "https://MSDN.Microsoft.com";
Source = "Exception_Class_Samples";
}
protected:
// This protected constructor is used for deserialization.
SecondLevelException( SerializationInfo^ info, StreamingContext context )
: Exception( info, context )
{}
public:
// GetObjectData performs a custom serialization.
[System::Security::Permissions::SecurityPermissionAttribute
(System::Security::Permissions::SecurityAction::LinkDemand,
Flags=System::Security::Permissions::SecurityPermissionFlag::SerializationFormatter)]
virtual void GetObjectData( SerializationInfo^ info, StreamingContext context ) override
{
// Change the case of two properties, and then use the
// method of the base class.
HelpLink = HelpLink->ToLower();
Source = Source->ToUpper();
Exception::GetObjectData( info, context );
}
};
int main()
{
Console::WriteLine( "This example of the Exception constructor "
"and Exception.GetObjectData\nwith Serialization"
"Info and StreamingContext parameters "
"generates \nthe following output.\n" );
try
{
// This code forces a division by 0 and catches the
// resulting exception.
try
{
int zero = 0;
int ecks = 1 / zero;
}
catch ( Exception^ ex )
{
// Create a new exception to throw again.
SecondLevelException^ newExcept = gcnew SecondLevelException( "Forced a division by 0 and threw "
"another exception.",ex );
Console::WriteLine( "Forced a division by 0, caught the "
"resulting exception, \n"
"and created a derived exception:\n" );
Console::WriteLine( "HelpLink: {0}", newExcept->HelpLink );
Console::WriteLine( "Source: {0}", newExcept->Source );
// This FileStream is used for the serialization.
FileStream^ stream = gcnew FileStream( "NewException.dat",FileMode::Create );
try
{
// Serialize the derived exception.
SoapFormatter^ formatter = gcnew SoapFormatter( nullptr,StreamingContext(StreamingContextStates::File) );
formatter->Serialize( stream, newExcept );
// Rewind the stream and deserialize the
// exception.
stream->Position = 0;
SecondLevelException^ deserExcept = dynamic_cast<SecondLevelException^>(formatter->Deserialize( stream ));
Console::WriteLine( "\nSerialized the exception, and then "
"deserialized the resulting stream "
"into a \nnew exception. "
"The deserialization changed the case "
"of certain properties:\n" );
// Throw the deserialized exception again.
throw deserExcept;
}
catch ( SerializationException^ se )
{
Console::WriteLine( "Failed to serialize: {0}", se->ToString() );
}
finally
{
stream->Close();
}
}
}
catch ( Exception^ ex )
{
Console::WriteLine( "HelpLink: {0}", ex->HelpLink );
Console::WriteLine( "Source: {0}", ex->Source );
Console::WriteLine();
Console::WriteLine( ex->ToString() );
}
}
/*
This example of the Exception constructor and Exception.GetObjectData
with SerializationInfo and StreamingContext parameters generates
the following output.
Forced a division by 0, caught the resulting exception,
and created a derived exception:
HelpLink: https://MSDN.Microsoft.com
Source: Exception_Class_Samples
Serialized the exception, and then deserialized the resulting stream into a
new exception. The deserialization changed the case of certain properties:
HelpLink: https://msdn.microsoft.com
Source: EXCEPTION_CLASS_SAMPLES
SecondLevelException: Forced a division by 0 and threw another exception. ---> S
ystem.DivideByZeroException: Attempted to divide by zero.
at main()
--- End of inner exception stack trace ---
at main()
*/
.NET Framework 보안
- SecurityPermission serialization 서비스를 제공하는 데 필요한 권한입니다. 요청 값: LinkDemand, 권한 값: SerializationFormatter
플랫폼
Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
.NET Framework에서 모든 플래폼의 모든 버전을 지원하지는 않습니다. 지원되는 버전의 목록은 시스템 요구 사항을 참조하십시오.
버전 정보
.NET Framework
2.0, 1.1, 1.0에서 지원
참고 항목
참조
Exception 클래스
Exception 멤버
System 네임스페이스
SerializationInfo
StreamingContext