Database injection into a validation attribute with ASP MVC and Castle Windsor

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AFAIK no dependency injection container can directly manage an attribute, since it’s instantiated by the runtime and there’s no way to intercept that.

However, they can cheat by either:

  1. Using a static gateway to the container (example), or
  2. Using a “BuildUp” feature that injects whatever dependencies are found within an already-constructed object. This is called BuildUp in Unity or InjectProperties in Autofac.

Windsor doesn’t support #2 (ref1, ref2), so you can either:

  1. Try one of the hacks to make Windsor support #2 (hack1, hack2)
  2. Use a static gateway
  3. Implement your own IValidatorBuilder and make it use Windsor to create validators. I’m sure this is implemented somewhere but I can’t find it right now…

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