Attribute based validation with fluent validation doesn't seem to work with asp.net-mvc?

I'm not sure what type of HTML element FundingTypeId is but I'm assuming it is a dropdown list. If nothing is selected then it will give you this error. This is unfortunately one of the limitations of the FV integration with MVC which is caused by the bad design of MVC's default model binder.

That message is not generated by FV but rather is produced by the DefaultModelBinder, in this case where the incoming value cannot be converted to the property type.

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