Hopefully the above post provides a basic understanding of
how to think about and use Lambda expressions. When combined with the
built-in standard query extension methods provided in the System.Linq namespace
in "Orcas", they provide a really rich way to query and interact with
any type of data while preserving full compile-time checking and
By taking advantage of the Expression Tree support provided
with Lambdas, and the IQueryable<T> interface, framework developers
building data providers can ensure that the clean code that developers write
executes fast and efficiently against data sources (whether a database, XML
file, in-memory object, web-service, LDAP system, etc).
Over the next few weeks I'll complete this language series
covering the new core language concepts from a theoretical level, and then move
on to cover some super practical examples of using them in action (especially
using LINQ against databases and XML files).
Hope this helps,