Write business rules for validation and calculated fields in a LightSwitch Application
In this video you will learn how to write complex business logic that runs on both the client and the server.
This video is taken from LightSwitch Developer Center published by Microsoft. http://msdn.microsoft.com/en-us/lightswitch/gg604823
This video help you to learn how to use the Entity Designer to specify declarative validation rules for fields as well as how to write complex business logic that runs on both the client and the server.