Validation attribute on nested list item

I'm working on some data annotation validation stuff and today I came to a requirement to validate a type nested property which is a list of string. The requirement is quite simple, just make sure every string in the list must be numeric. NumericAttribute is a custom ValidationAttribute to validate a string and to check whether it contains only numeric. Well this is a very basic example and I'm thinking futher, may be I'll need...

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WCF Validation Engine with Data Annotation style like ASP.NET MVC

    There are many articles about WCF validation. Some are about using WCF with Microsoft Application Block, many others are about using Data Annotation. But there is not any thing like the validation engine of ASP.NET MVC. Honestly, I'm very impressed of MVC Team's work. The code is very SOLID that makes it too easy to extend without changing the implementation. There are still something i don't like in the...

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