The primary reason you may want to use WCF RIA Services with Visual Studio LightSwitch 2013 is to:
Combine more than one entity into a single entity. Eliminate unneeded columns in an entity to improve performance (otherwise large amounts of data, for example pictures, will be transmitted even when they are not shown). Implement calculated fields that allow the resulting values to be searchable and sortable. Tags: WCF RIA Service,VS2013
Published on October 05, 2013 07:28