Export (0) Print
Expand All
0 out of 1 rated this helpful - Rate this topic

RuntimeCompatibilityAttribute Class

Note: This class is new in the .NET Framework version 2.0.

Specifies whether to wrap exceptions that do not derive from the Exception class with a RuntimeWrappedException object. This class cannot be inherited.

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

[SerializableAttribute] 
[AttributeUsageAttribute(AttributeTargets.Assembly, Inherited=false, AllowMultiple=false)] 
public sealed class RuntimeCompatibilityAttribute : Attribute
/** @attribute SerializableAttribute() */ 
/** @attribute AttributeUsageAttribute(AttributeTargets.Assembly, Inherited=false, AllowMultiple=false) */ 
public final class RuntimeCompatibilityAttribute extends Attribute
SerializableAttribute 
AttributeUsageAttribute(AttributeTargets.Assembly, Inherited=false, AllowMultiple=false) 
public final class RuntimeCompatibilityAttribute extends Attribute

Some languages, such as C++, allow you to throw exceptions of any type. Other languages, such as Microsoft C# and Visual Basic, require that every thrown exception be derived from the Exception class. To maintain compatibility between languages, the common language runtime (CLR) wraps objects that do not derive from Exception in a RuntimeWrappedException object.

You can use the RuntimeCompatibilityAttribute class to specify whether exceptions should appear wrapped inside catch blocks and exception filters for an assembly. Many language compilers, including the Microsoft C# and Visual Basic compilers, apply this attribute by default to specify the wrapping behavior.

Note that the runtime still wraps exceptions even if you use the RuntimeCompatibilityAttribute class to specify that you do not want them wrapped. In this case, exceptions are unwrapped only inside catch blocks or exception filters.

The following code example applies the RuntimeCompatibilityAttribute attribute to an assembly to disable exception wrapping.

using namespace System;
using namespace System::Runtime::CompilerServices;

[assembly:RuntimeCompatibilityAttribute(WrapNonExceptionThrows = false)];

void run()
{
     Console::WriteLine("The RuntimeCompatibilityAttribute was applied to disable exception wrapping.");
}

int main()
{
    run();

    return 0;
}

System.Object
   System.Attribute
    System.Runtime.CompilerServices.RuntimeCompatibilityAttribute
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 Millennium Edition, 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
Did you find this helpful?
(1500 characters remaining)
Thank you for your feedback

Community Additions

ADD
Show:
© 2014 Microsoft. All rights reserved.