The exception that is thrown when an operation is performed on a disposed object.
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Visual Basic (Declaration)
<SerializableAttribute> _
<ComVisibleAttribute(True)> _
Public Class ObjectDisposedException
Inherits InvalidOperationException
Dim instance As ObjectDisposedException
[SerializableAttribute]
[ComVisibleAttribute(true)]
public class ObjectDisposedException : InvalidOperationException
[SerializableAttribute]
[ComVisibleAttribute(true)]
public ref class ObjectDisposedException : public InvalidOperationException
/** @attribute SerializableAttribute() */
/** @attribute ComVisibleAttribute(true) */
public class ObjectDisposedException extends InvalidOperationException
SerializableAttribute
ComVisibleAttribute(true)
public class ObjectDisposedException extends InvalidOperationException
The following example demonstrates an error that causes the ObjectDisposedException exception to be thrown.
Imports System
Imports System.IO
Public Class ObjectDisposedExceptionTest
Public Shared Sub Main()
Dim ms As New MemoryStream(16)
ms.Close()
Try
ms.ReadByte()
Catch e As ObjectDisposedException
Console.WriteLine("Caught: {0}", e.Message)
End Try
End Sub 'Main
End Class 'ObjectDisposedExceptionTest
using System;
using System.IO;
public class ObjectDisposedExceptionTest
{
public static void Main()
{
MemoryStream ms = new MemoryStream(16);
ms.Close();
try
{
ms.ReadByte();
}
catch (ObjectDisposedException e)
{
Console.WriteLine("Caught: {0}", e.Message);
}
}
}
using namespace System;
using namespace System::IO;
int main()
{
MemoryStream^ ms = gcnew MemoryStream( 16 );
ms->Close();
try
{
ms->ReadByte();
}
catch ( ObjectDisposedException^ e )
{
Console::WriteLine( "Caught: {0}", e->Message );
}
}
import System.*;
import System.IO.*;
public class ObjectDisposedExceptionTest
{
public static void main(String[] args)
{
MemoryStream ms = new MemoryStream(16);
ms.Close();
try {
ms.ReadByte();
}
catch (ObjectDisposedException e) {
Console.WriteLine("Caught: {0}", e.get_Message());
}
} //main
} //ObjectDisposedExceptionTest
This code produces the following output:
Caught:
Cannot access a closed Stream.
System.Object
System.Exception
System.SystemException
System.InvalidOperationException
System.ObjectDisposedException
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.
.NET Framework
Supported in: 2.0, 1.1, 1.0
.NET Compact Framework
Supported in: 2.0, 1.0