What's the easiest way to generate code dynamically in .NET 4.5?

Question

I\'m writing a specific kind of object-mapper. Basically I want to convert from a DataTable that has the fields a, b and c

Answer 1

Late to the party, but Marc Gravell has a nice utility called FastMember. With FastMember, you can map from a DataTable to an object, even a dynamic.

var accessor = TypeAccessor.Create(type);
string propName = // something known only at runtime

while( /* some loop of data */ ) {
   accessor[obj, propName] = rowValue;
}

I'ved used this in production and it performs nicely.