TypeLoadException コンストラクター

ソース:

TypeLoadException.cs

ソース:

TypeLoadException.cs

ソース:

TypeLoadException.cs

public:
 TypeLoadException();

public TypeLoadException ();

Public Sub New ()

注釈

このコンストラクターは、"型の読み込み中にエラーが発生しました" などのエラーを説明するシステム指定のメッセージに対して、新しいインスタンスの プロパティを初期化 Message します。このメッセージでは、現在のシステム カルチャが考慮されます。

次の表に、TypeLoadException のインスタンスに対するプロパティの初期値を示します。

ソース:

TypeLoadException.cs

ソース:

TypeLoadException.cs

ソース:

TypeLoadException.cs

public:
 TypeLoadException(System::String ^ message);

public TypeLoadException (string message);

public TypeLoadException (string? message);

new TypeLoadException : string -> TypeLoadException

Public Sub New (message As String)

パラメーター

例

次のコード例では、 コンストラクターを TypeLoadException(String) 示します。 これには、カスタム メッセージを含む を TypeLoadException 生成し、コンソールにエラー メッセージを表示する メソッドが含まれています。

using namespace System;

class TypeLoadExceptionDemoClass
{
   public:
      static bool GenerateException()
      {
         // Throw a TypeLoadException with a custom message.
         throw gcnew TypeLoadException("This is a custom TypeLoadException error message.");
      }
};

int main()
{
   try {
      // Call a method that throws an exception.  
      TypeLoadExceptionDemoClass::GenerateException();
   }
   catch ( TypeLoadException^ e ) {
      Console::WriteLine("TypeLoadException:\n   {0}", e->Message);
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( "Exception: \n\tError Message = {0}", e->Message );
   }

}
// The example displays the following output:
//       TypeLoadException:
//          This is a custom TypeLoadException error message.

using System;

public class Example
{
   public static void Main()
   {
      try {
         // Call a method that throws an exception.
         TypeLoadExceptionDemoClass.GenerateException();
      }
      catch (TypeLoadException e) {
         Console.WriteLine("TypeLoadException:\n   {0}", e.Message);
      }
   }
}

class TypeLoadExceptionDemoClass
{
   public static bool GenerateException()
   {
      // Throw a TypeLoadException with a custom defined message.
      throw new TypeLoadException("This is a custom TypeLoadException error message.");
   }
}
// The example displays the following output:
//       TypeLoadException:
//          This is a custom TypeLoadException error message.

Public Class Example
   Public Shared Sub Main()
      Try
         ' Call a method that throws an exception.
         TypeLoadExceptionDemoClass.GenerateException()
      Catch e As TypeLoadException
         Console.WriteLine("TypeLoadException:{0}   {1}", vbCrLf, e.Message)
      End Try
   End Sub 
End Class 

Class TypeLoadExceptionDemoClass
   Public Shared Function GenerateException() As Boolean
      ' Throw a TypeLoadException with a custom message.
      Throw New TypeLoadException("This is a custom TypeLoadException error message.")
   End Function 
End Class 
' The example displays the following output:
'       TypeLoadException:
'          This is a custom TypeLoadException error message.

注釈

パラメーターの内容は message 、ユーザーが理解できる必要があります。 このコンストラクターの呼び出し元は、この文字列が現在のシステム環境向けにローカライズされていることを確認する必要があります。

次の表に、TypeLoadException のインスタンスに対するプロパティの初期値を示します。

ソース:

TypeLoadException.cs

ソース:

TypeLoadException.cs

ソース:

TypeLoadException.cs

protected:
 TypeLoadException(System::Runtime::Serialization::SerializationInfo ^ info, System::Runtime::Serialization::StreamingContext context);

protected TypeLoadException (System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context);

[System.Obsolete("This API supports obsolete formatter-based serialization. It should not be called or extended by application code.", DiagnosticId="SYSLIB0051", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
protected TypeLoadException (System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context);

new TypeLoadException : System.Runtime.Serialization.SerializationInfo * System.Runtime.Serialization.StreamingContext -> TypeLoadException

[<System.Obsolete("This API supports obsolete formatter-based serialization. It should not be called or extended by application code.", DiagnosticId="SYSLIB0051", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
new TypeLoadException : System.Runtime.Serialization.SerializationInfo * System.Runtime.Serialization.StreamingContext -> TypeLoadException

Protected Sub New (info As SerializationInfo, context As StreamingContext)

パラメーター

属性

ObsoleteAttribute

例外

例

次の例では、例外を生成し、例外データをファイルにシリアル化してから、例外を再構成します。 このコード例を実行するには、完全修飾アセンブリ名を指定する必要があります。 完全修飾アセンブリ名を取得する方法については、「アセンブリ 名」を参照してください。

#using <System.Runtime.Serialization.Formatters.Soap.dll>

using namespace System;
using namespace System::Reflection;
using namespace System::Runtime::Serialization;
using namespace System::Runtime::Serialization::Formatters::Soap;
using namespace System::IO;

// This class overrides the GetObjectData method and initializes
// its data with current time. 

[Serializable]
public ref class MyTypeLoadExceptionChild: public TypeLoadException
{
public:
   System::DateTime ErrorDateTime;
   MyTypeLoadExceptionChild()
   {
      ErrorDateTime = DateTime::Now;
   }

   MyTypeLoadExceptionChild( DateTime myDateTime )
   {
      ErrorDateTime = myDateTime;
   }


protected:
   MyTypeLoadExceptionChild( SerializationInfo^ sInfo, StreamingContext * sContext )
   {
      
      // Reconstitute the deserialized information into the instance.
      ErrorDateTime = sInfo->GetDateTime( "ErrorDate" );
   }


public:
   void GetObjectData( SerializationInfo^ sInfo, StreamingContext * sContext )
   {
      
      // Add a value to the Serialization information.
      sInfo->AddValue( "ErrorDate", ErrorDateTime );
   }

};

int main()
{
   
   // Load the mscorlib assembly and get a reference to it.
   // You must supply the fully qualified assembly name for mscorlib.dll here.
   Assembly^ myAssembly = Assembly::Load( "Assembly text name, Version, Culture, PublicKeyToken" );
   try
   {
      Console::WriteLine( "Attempting to load a type not present in the assembly 'mscorlib'" );
      
      // This loading of invalid type raises a TypeLoadException
      Type^ myType = myAssembly->GetType( "System::NonExistentType", true );
   }
   catch ( TypeLoadException^ ) 
   {
      
      // Serialize the exception to disk and reconstitute it back again.
      try
      {
         System::DateTime ErrorDatetime = DateTime::Now;
         Console::WriteLine( "A TypeLoadException has been raised." );
         
         // Create MyTypeLoadException instance with current time.
         MyTypeLoadExceptionChild^ myTypeLoadExceptionChild = gcnew MyTypeLoadExceptionChild( ErrorDatetime );
         IFormatter^ myFormatter = gcnew SoapFormatter;
         Stream^ myFileStream = gcnew FileStream( "typeload.xml",FileMode::Create,FileAccess::Write,FileShare::None );
         Console::WriteLine( "Serializing the TypeLoadException with DateTime as {0}", ErrorDatetime );
         
         // Serialize the MyTypeLoadException instance to a file.
         myFormatter->Serialize( myFileStream, myTypeLoadExceptionChild );
         myFileStream->Close();
         Console::WriteLine( "Deserializing the Exception." );
         myFileStream = gcnew FileStream( "typeload.xml",FileMode::Open,FileAccess::Read,FileShare::None );
         
         // Deserialize and reconstitute the instance from file.
         myTypeLoadExceptionChild = safe_cast<MyTypeLoadExceptionChild^>(myFormatter->Deserialize( myFileStream ));
         myFileStream->Close();
         Console::WriteLine( "Deserialized exception has ErrorDateTime = {0}", myTypeLoadExceptionChild->ErrorDateTime );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Exception : {0}", e->Message );
      }

   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( "Exception : {0}", e->Message );
   }

}

using System;
using System.Reflection;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Soap;
using System.IO;

class GetObjectDataDemo
{
   public static void Main()
   {
      // Get a reference to the assembly mscorlib.dll, which is always
      // loaded. (System.String is defined in mscorlib.)
      Assembly mscorlib = typeof(string).Assembly;

      try
      {
         Console.WriteLine ("Attempting to load a type not present in the assembly 'mscorlib'");
         // This loading of invalid type raises a TypeLoadException
         Type myType = mscorlib.GetType("System.NonExistentType", true);
      }
      catch (TypeLoadException)
      {
         // Serialize the exception to disk and reconstitute it.
         System.DateTime ErrorDatetime = DateTime.Now;
         Console.WriteLine("A TypeLoadException has been raised.");

         // Create MyTypeLoadException instance with current time.
         MyTypeLoadException myException = new MyTypeLoadException(ErrorDatetime);
         IFormatter myFormatter = new SoapFormatter();
         Stream myFileStream = new FileStream("typeload.xml", FileMode.Create, FileAccess.Write, FileShare.None);
         Console.WriteLine("Serializing the TypeLoadException with DateTime as " + ErrorDatetime);

         // Serialize the MyTypeLoadException instance to a file.
         myFormatter.Serialize(myFileStream, myException);
         myFileStream.Close();

         Console.WriteLine("Deserializing the Exception.");
         myFileStream = new FileStream("typeload.xml", FileMode.Open, FileAccess.Read, FileShare.None);

         // Deserialize and reconstitute the instance from file.
         myException = (MyTypeLoadException) myFormatter.Deserialize(myFileStream);
         myFileStream.Close();
         Console.WriteLine("Deserialized exception has ErrorDateTime = " + myException.ErrorDateTime);
      }
   }
}

// This class overrides the GetObjectData method and initializes
// its data with current time.

[Serializable]
public class MyTypeLoadException : TypeLoadException
{
   private System.DateTime _errorDateTime = DateTime.Now;
   public DateTime ErrorDateTime { get { return _errorDateTime; }}

   public MyTypeLoadException(DateTime myDateTime)
   {
      _errorDateTime = myDateTime;
   }

   protected MyTypeLoadException(SerializationInfo sInfo, StreamingContext sContext)
       : base(sInfo, sContext)
   {
      // Reconstitute the deserialized information into the instance.
      _errorDateTime = sInfo.GetDateTime("ErrorDate");
   }

   public override void GetObjectData(SerializationInfo sInfo, StreamingContext sContext)
   {
      base.GetObjectData(sInfo, sContext);
      // Add a value to the Serialization information.
      sInfo.AddValue("ErrorDate", ErrorDateTime);
   }
}

Imports System.Reflection
Imports System.Runtime.Serialization
Imports System.Runtime.Serialization.Formatters.Soap
Imports System.Security.Permissions
Imports System.IO

Class GetObjectDataDemo

   Public Shared Sub Main()
      ' Get a reference to the assembly mscorlib.dll, which is always
      ' loaded. (System.String is defined in mscorlib.)
      Dim tString As Type = GetType(String)
      Dim mscorlib As [Assembly] = tString.Assembly

      Try
         Console.WriteLine("Attempting to load a type not present in the assembly 'mscorlib'")
         ' This loading of invalid type raises a TypeLoadException
         Dim myType As Type = mscorlib.GetType("System.NonExistentType", True)
      Catch
         ' Serialize the exception to disk and reconstitute it.
         Dim ErrorDatetime as System.DateTime = DateTime.Now
         Console.WriteLine("A TypeLoadException has been raised.")

         ' Create MyTypeLoadException instance with current time.
         Dim myException As new MyTypeLoadException(ErrorDatetime)
         Dim myFormatter as IFormatter  = new SoapFormatter()
         Dim myFileStream as Stream 
         myFileStream = New FileStream("typeload.xml", FileMode.Create, FileAccess.Write, FileShare.None)
         Console.WriteLine("Serializing the TypeLoadException with DateTime as " _
             & ErrorDatetime.ToString())

         ' Serialize the MyTypeLoadException instance to a file.
         myFormatter.Serialize(myFileStream, myException)
         myFileStream.Close()

         Console.WriteLine("Deserializing the Exception.")
         myFileStream = New FileStream("typeload.xml", FileMode.Open, FileAccess.Read, FileShare.None)

         ' Deserialize and reconstitute the instance from file.
         myException = CType(myFormatter.Deserialize(myFileStream), MyTypeLoadException)
         myFileStream.Close()
         Console.WriteLine("Deserialized exception has ErrorDateTime = " + myException.ErrorDateTime.ToString())
      End Try
   End Sub
End Class

' This class overrides the GetObjectData method and initializes
' its data with current time. 
<Serializable()> _
Public Class MyTypeLoadException
   Inherits TypeLoadException

   Private _errorDateTime As System.DateTime = DateTime.Now
   Public ReadOnly Property ErrorDateTime As DateTime
      Get
         Return _errorDateTime
      End Get
   End Property

   Public Sub New(myDateTime As DateTime)
      _errorDateTime = myDateTime
   End Sub

   Protected Sub New(sInfo As SerializationInfo, sContext As StreamingContext)
      MyBase.New(sInfo, sContext)
      ' Reconstitute the deserialized information into the instance.
      _errorDateTime = sInfo.GetDateTime("ErrorDate")
   End Sub

   ' GetObjectData overrides must always have a demand for SerializationFormatter.
   <SecurityPermissionAttribute(SecurityAction.Demand, SerializationFormatter:=true)> _
   Public Overrides Sub GetObjectData(sInfo As SerializationInfo, sContext As StreamingContext)
      MyBase.GetObjectData(sInfo, sContext)
      ' Add a value to the Serialization information.
      sInfo.AddValue("ErrorDate", ErrorDateTime)
   End Sub

End Class

注釈

このコンストラクターは、シリアル化解除の際に呼び出されて、ストリームで送信された例外オブジェクトを再構成します。 詳細については、「 XML および SOAP のシリアル化」を参照してください。

こちらもご覧ください

• XML シリアル化および SOAP シリアル化

ソース:

TypeLoadException.cs

ソース:

TypeLoadException.cs

ソース:

TypeLoadException.cs

public:
 TypeLoadException(System::String ^ message, Exception ^ inner);

public TypeLoadException (string message, Exception inner);

public TypeLoadException (string? message, Exception? inner);

new TypeLoadException : string * Exception -> TypeLoadException

Public Sub New (message As String, inner As Exception)

パラメーター

例

次のコード例では、 コンストラクターを TypeLoadException(String, Exception) 示します。 を生成TypeLoadExceptionする メソッドが含まれており、その例外をキャッチし、内部例外として元TypeLoadExceptionの を含むカスタム メッセージを含む新しい TypeLoadException をスローします。

using namespace System;
using namespace System::Runtime::InteropServices;
ref class TypeLoadExceptionDemoClass
{
public:

   // A call to this method will raise a TypeLoadException.

   [DllImport("NonExistentDLL.DLL",EntryPoint="MethodNotExists")]
   static void NonExistentMethod();
   static void GenerateException()
   {
      try
      {
         NonExistentMethod();
      }
      catch ( TypeLoadException^ e ) 
      {
         
         // Rethrow exception with the exception as inner exception
         throw gcnew TypeLoadException( "This exception was raised due to a call to an invalid method.",e );
      }

   }

};

int main()
{
   Console::WriteLine( "Calling a method in a non-existent DLL which triggers a TypeLoadException." );
   try
   {
      TypeLoadExceptionDemoClass::GenerateException();
   }
   catch ( TypeLoadException^ e ) 
   {
      Console::WriteLine( "TypeLoadException: \n\tError Message = {0}", e->Message );
      Console::WriteLine( "TypeLoadException: \n\tInnerException Message = {0}", e->InnerException->Message );
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( "Exception: \n\tError Message = {0}", e->Message );
   }

}

using System;
using System.Runtime.InteropServices;

public class TypeLoadException_Constructor3
{
   public static void Main()
   {
      Console.WriteLine("Calling a method in a non-existent DLL which triggers a TypeLoadException.");
      try
      {
         TypeLoadExceptionDemoClass3.GenerateException();
      }
      catch (TypeLoadException e)
      {
         Console.WriteLine ("TypeLoadException: \n\tError Message = " + e.Message);
         Console.WriteLine ("TypeLoadException: \n\tInnerException Message = " + e.InnerException.Message );
      }
      catch (Exception e)
      {
         Console.WriteLine ("Exception: \n\tError Message = " + e.Message);
      }
   }
}

class TypeLoadExceptionDemoClass3
{
   // A call to this method will raise a TypeLoadException.
   [DllImport("NonExistentDLL.DLL", EntryPoint="MethodNotExists")]
   public static extern void NonExistentMethod();

   public static void GenerateException()
   {
      try
      {
         NonExistentMethod();
      }
      catch (TypeLoadException e)
      {
         // Rethrow exception with the exception as inner exception
         throw new TypeLoadException("This exception was raised due to a call to an invalid method.", e);
      }
   }
}

Imports System.Runtime.InteropServices

Public Class TypeLoadException_Constructor3
   Public Shared Sub Main()
      Console.WriteLine("Calling a method in a non-existent DLL which triggers a TypeLoadException.")
      Try
         TypeLoadExceptionDemoClass.GenerateException()
      Catch e As TypeLoadException
         Console.WriteLine(("TypeLoadException: " + ControlChars.Cr + ControlChars.Tab + "Error Message = " + e.Message))
         Console.WriteLine(("TypeLoadException: " + ControlChars.Cr + ControlChars.Tab + "InnerException Message = " + e.InnerException.Message))
      Catch e As Exception
         Console.WriteLine(("Exception: " + ControlChars.Cr + ControlChars.Tab + "Error Message = " + e.Message))
      End Try
   End Sub
End Class

Class TypeLoadExceptionDemoClass
   ' A call to this method will raise a TypeLoadException.
   Public Declare Sub NonExistentMethod Lib "NonExistentDLL.DLL" Alias "MethodNotExists" ()

   Public Shared Sub GenerateException()
      Try
         NonExistentMethod()
      Catch e As TypeLoadException
         ' Rethrow exception with the exception as inner exception
         Throw New TypeLoadException("This exception was raised due to a call to an invalid method.", e)
      End Try
   End Sub
End Class

注釈

前の例外の直接の結果としてスローされる例外は、InnerException プロパティに前の例外への参照を含んでいる場合があります。 InnerException プロパティは、コンストラクターに渡されるのと同じ値を返します。または、InnerException プロパティがコンストラクターに内部例外値を提供しない場合には null を返します。

次の表に、TypeLoadException のインスタンスに対するプロパティの初期値を示します。

こちらもご覧ください

• Exception
• 例外の処理とスロー