I have an instanced class that needs to, at Runtime using Reflection,
check the current AppDomain for the existence of another Type, and if
it exists create a new instance. If that Type is not in the AppDomain,
then attempt to load it from disk.

How can I do that (C#)?

Thanks.

>I have an instanced class that needs to, at Runtime using Reflection,
>check the current AppDomain for the existence of another Type

You can iterate through the assemblies returned by
AppDomain.GetAssemblies and check for the one where teh type is
implemented.

>and if it exists create a new instance.

When you find the right Assembly instance just call CreateInstance on
it and pass in the type name.


>If that Type is not in the AppDomain,
>then attempt to load it from disk.

With Assembly.Load/LoadFrom. You can always do this if you want (skip
checking if it's already loaded) since the assembly will only loaded
once anyway.



Mattias

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Mattias Sjögren [MVP] mattias @ mvps.org
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