Create, parse, join, split, validate, and view HIPAA EDI X12 files.
A comprehensive .Net Library that fully supports all HIPAA 5010 and 4010 transaction sets. RDPCrystal EDI Library is a suite of EDI components that can create and manipulate EDI files. Features include parsing, joining, splitting, validation and loading. It works in both WPF and WinForms applications and supports any .NET language
Besides an easy to use API the validation was spot on. I was able to load my 100MB 837 Professional document with ease. They got tons of other EDI components in the library too like the EDI File Splitter, one of my favorites.
Cons
They specialize in HIPAA transaction set and they have all the validation rules for them. If you need EDIFACT you need to create your own validation rules. They also provide an application for this.