line-of-business data sources to aggregate reports For more advanced LightSwitch users, see how to: Handle events in code and debug applications Master the intricacies of complex user interface design Secure your applications through authentication Write custom. NET code to enhance LightSwitch Deploy maintainable LightSwitch projects Who this book is for Pro Visual Studio LightSwitch 2011is a book designed for any software developer who wants to take advantage of the rapid application deployment (RAD) experience offered by LightSwitch. It is ideal reading for those wanting to build and design applications correctly from the onset. Those who have grasped the basics of LightSwitch and are looking to do more will benefit greatly from this book. Anyone struggling to design complex screens and queries in order to meet user requirements will find the answers in this book.