CA2258: Providing a 'DynamicInterfaceCastableImplementation' interface in Visual Basic is unsupported

#Cause

Use of System.Runtime.InteropServices.DynamicInterfaceCastableImplementationAttribute in Visual Basic.

#Rule description

Providing a functional interface that's attributed with DynamicInterfaceCastableImplementationAttribute requires the Default Interface Members feature, which is not supported in Visual Basic.

#When to suppress errors

Do not suppress a warning from this rule.

#See also

• Usage warnings