Create a Screen that can Both Edit and Add Records in a LightSwitch Application

This video is taken from LightSwitch Developer Center published by Microsoft. http://msdn.microsoft.com/en-us/lightswitch/gg604823

In this video you will see how you can use the Screen Designer to modify a default Edit Details screen to also allow adding new records. You will also see how to write code to enable and disable buttons depending on the edit or add mode of the screen.