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.NET Framework 2.0
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This page is specific to
Microsoft Visual Studio 2005/.NET Framework 2.0

Other versions are also available for the following:
.NET Framework Class Library
InvalidOperationException Class

The exception that is thrown when a method call is invalid for the object's current state.

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

Visual Basic (Declaration)
<SerializableAttribute> _
<ComVisibleAttribute(True)> _
Public Class InvalidOperationException
    Inherits SystemException
Visual Basic (Usage)
Dim instance As InvalidOperationException
C#
[SerializableAttribute] 
[ComVisibleAttribute(true)] 
public class InvalidOperationException : SystemException
C++
[SerializableAttribute] 
[ComVisibleAttribute(true)] 
public ref class InvalidOperationException : public SystemException
J#
/** @attribute SerializableAttribute() */ 
/** @attribute ComVisibleAttribute(true) */ 
public class InvalidOperationException extends SystemException
JScript
SerializableAttribute 
ComVisibleAttribute(true) 
public class InvalidOperationException extends SystemException

InvalidOperationException is used in cases when the failure to invoke a method is caused by reasons other than invalid arguments. For example, InvalidOperationException is thrown by:

  • MoveNext if objects of a collection are modified after the enumerator is created.

  • GetString if the resource set is closed before the method call is made.

If the method invocation failure is due to invalid arguments, then ArgumentException or one of its derived classes, ArgumentNullException or ArgumentOutOfRangeException, should be thrown instead.

  • The Ldflda Microsoft intermediate language (MSIL) instruction throws InvalidOperationException.

InvalidOperationException uses the HRESULT COR_E_INVALIDOPERATION, which has the value 0x80131509.

For a list of initial property values for an instance of InvalidOperationException, see the InvalidOperationException constructors.

System.Object
   System.Exception
     System.SystemException
      System.InvalidOperationException
         System.Net.NetworkInformation.PingException
         System.Net.ProtocolViolationException
         System.Net.WebException
         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
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