PropertyInfoPairs.cs

        // A table for finding the properties with common names in two C# types.
        // the result can reduce boilerplate when you do copies, compares.
        // etc between pairs of structurally similar types.  E.g. a model -- controller
        // transition.
        //
        // hat tip to http://stackoverflow.com/questions/3057178/linq-join-two-dictionaries-using-a-common-key
        static Tuple<PropertyInfo, PropertyInfo>[] piPairs = (
                from mPi in typeof(Model.Component).GetProperties()
                join pPi in typeof(ComponentRecord).GetProperties()
                    on mPi.Name equals pPi.Name
                select Tuple.Create(mPi, pPi)
                ).ToArray();