Validation in WCF application with NValidator

I have been working on a heavy validation messaging project for 3 months. Basically, my company had built a workflow based system to process incoming WCF messages from other business partners. These WCF messages are supposed to be validated before being queued in a RabbitMQ queue store. And I was responsible for implementing the validation stuff for the application. As mentioned in previous post, I wanted to have something similar...

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Is Repository old skool?

I used to be a fan of Repository pattern, DAO, DAL whatever they're called. I have tried many different approaches for this pattern and normally end up at a DAO object rather than a pure generic Repository. However, I still fooled myself that it was my bad design of Repository pattern and there must be a better design somewhere. More than two years ago, I saw code of my elder colleague about his design of database abstraction...

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