ExternalException Class (System.Runtime.InteropServices)

ExternalException Class

.NET Framework Class Library

ExternalException Class

The base exception type for all COM interop exceptions and structured exception handling (SEH) exceptions.

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

Syntax

Visual Basic (Declaration)

<SerializableAttribute> _
<ComVisibleAttribute(True)> _
Public Class ExternalException _
    Inherits SystemException

Visual Basic (Usage)

Dim instance As ExternalException

[SerializableAttribute]
[ComVisibleAttribute(true)]
public class ExternalException : SystemException

Visual C++

[SerializableAttribute]
[ComVisibleAttribute(true)]
public ref class ExternalException : public SystemException

JScript

public class ExternalException extends SystemException

Remarks

To enhance interoperability between legacy systems and the common language runtime, the ErrorCode property stores an integer value (HRESULT) that identifies the error. User defined exceptions should never derive from ExternalException, and an ExternalException should never be thrown by user code. Use the specific exceptions that derive from ExternalException instead.

ExternalException uses the HRESULT E_FAIL which has the value 0x80004005.

ExternalException uses the default Equals implementation, which supports reference equality.

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

Inheritance Hierarchy

Thread Safety

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

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

Reference

ExternalException Members

System.Runtime.InteropServices Namespace

Exception

Other Resources

Handling and Throwing Exceptions