Pull dynamic string out of embedded RESX

I have a R开发者_运维技巧ESX resource file that I can retrieve the values out of using the strongly typed properties and assign to values in my Silverlight 3 app. However at runtime I need to generate the lookup key based on some values to avoid a ton of if/switch statements. I'm trying to use the ResourceManager, but it doesn't like .resx files.

Searched far and wide... is this just not possible in SL3? Does anyone have another suggestion?

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Couldn't you just use reflection on the strongly typed property class created by the resx generator?