kevingadd -

We tend to use var when the return type is obvious, but we wanted to be explicit in the examples. Unfortunately, LINQ is not an option for us as we support .NET 2.0.

Your C# and Python predicate examples are quite readable, but in this case they don't work for us. The return type of each of these statements would be true or false, whereas we are building XML requests to be sent to a server to perform the searches. The call to Amount.Between(...) builds an XML node behind the scenes representing the search data.

Drew Olson (Braintree Dev)