System.Reflection.ReflectionTypeLoadException in Windows Service

Hello!

I'm experiencing this exception while attempting to examine the public types
on my assembly DLL. Here is the code:

Dim objType As Type
Dim objDLL As Assembly

objDLL = System.Reflection.Assembly.LoadFrom(pathToDLL)

For each objType in objDLL.GetTypes <---- Exception is raised from GetTypes
.... stuff
Next

The same code executes without a problem from a windows forms application,
but not this Windows Service. When I examine the loaderexceptions property,
it contains 1 System.TypeLoadException that simply states "Could not load
type {myType} from Assembly {myAssembly}" etc. The Types array contains 1
RunTime type that contains a reference to a windows form that is a public
member of my Assembly - which is why I bring the question to you. Is there a
problem in general with loading windows forms types from an assembly while
running within a Windows Service, or is there just some sort of dependency
that isn't loading?

Thanks for any assistance!

Zach

Hello Zach,

> it contains 1 System.TypeLoadException that simply states "Could not load
> type {myType} from Assembly {myAssembly}" etc. The Types array contains 1
> RunTime type that contains a reference to a windows form that is a public
> member of my Assembly - which is why I bring the question to you.

Actually, this might be a problem, if one of those Windows Form types
contain a static constructor, and this constructor, in turn, attempts some
interaction with the desktop. You might want to examine the InnerException
property of the TypeLoadException you get - it might indicate the real
underlying problem.

"Zach" <Zach@discussions.microsoft.com> wrote in message
news:10CEB384-7BA2-44C4-8146-9384CE13A170@microsoft.com...
> Hello!
>
> I'm experiencing this exception while attempting to examine the public
> types
> on my assembly DLL. Here is the code:
>
> Dim objType As Type
> Dim objDLL As Assembly
>
> objDLL = System.Reflection.Assembly.LoadFrom(pathToDLL)
>
> For each objType in objDLL.GetTypes <---- Exception is raised from
> GetTypes
> .... stuff
> Next
>
> The same code executes without a problem from a windows forms application,
> but not this Windows Service. When I examine the loaderexceptions
> property,
> it contains 1 System.TypeLoadException that simply states "Could not load
> type {myType} from Assembly {myAssembly}" etc. The Types array contains 1
> RunTime type that contains a reference to a windows form that is a public
> member of my Assembly - which is why I bring the question to you. Is
> there a
> problem in general with loading windows forms types from an assembly while
> running within a Windows Service, or is there just some sort of dependency
> that isn't loading?
>
> Thanks for any assistance!
>
> Zach
>
>
>
>