ObjectDisposedException Class

May 11, 2014

The exception that is thrown when an operation is performed on a disposed object.

System.Object
  System.Exception
    System.SystemException
      System.InvalidOperationException
        System.ObjectDisposedException

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

'Declaration
Public Class ObjectDisposedException _
	Inherits InvalidOperationException

The ObjectDisposedException type exposes the following members.

  NameDescription
Public methodObjectDisposedException(String)Initializes a new instance of the ObjectDisposedException class with a string containing the name of the disposed object.
Public methodObjectDisposedException(String, Exception)Initializes a new instance of the ObjectDisposedException class with a specified error message and a reference to the inner exception that is the cause of this exception.
Public methodObjectDisposedException(String, String)Initializes a new instance of the ObjectDisposedException class with the specified object name and message.
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  NameDescription
Public propertyDataGets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception.)
Public propertyHelpLinkGets or sets a link to the help file associated with this exception. (Inherited from Exception.)
Public propertyHResultGets or sets HRESULT, a coded numerical value that is assigned to a specific exception. (Inherited from Exception.)
Public propertyInnerExceptionGets the Exception instance that caused the current exception. (Inherited from Exception.)
Public propertyMessageGets the message that describes the error. (Overrides Exception.Message.)
Public propertyObjectNameGets the name of the disposed object.
Public propertySourceGets or sets the name of the application or the object that causes the error. (Inherited from Exception.)
Public propertyStackTraceGets a string representation of the frames on the call stack at the time the current exception was thrown. (Inherited from Exception.)
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  NameDescription
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetBaseExceptionWhen overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions. (Inherited from Exception.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the runtime type of the current instance. (Inherited from Exception.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringCreates and returns a string representation of the current exception. (Inherited from Exception.)
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The following example demonstrates an error that causes the ObjectDisposedException exception to be thrown.


Imports System.IO

Public Class Example

   Public Shared Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)
      Dim ms As New MemoryStream(16)
      ms.Close()
      Try
         ms.ReadByte()
      Catch e As ObjectDisposedException
         outputBlock.Text += String.Format("Caught: {0}", e.Message) & vbCrLf
      End Try
   End Sub 'Main
End Class 'ObjectDisposedExceptionTest


This code produces the following output:

Caught:
  Cannot access a closed Stream.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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