In this episode, Arthur and members of the EF Team will explore generated property values and how value generation interacts with keys in the model. We will look at fully client-side value generation, as well as how to use identity columns, database sequences, or a hi-lo pattern for server-side generation. In addition, we’ll investigate how generated key values impact EF Core change tracking by determining if an entity will go into the `Added` state or not. And finally, if we have time, we’ll look at special considerations for TPC mapping, and customizations such as setting before and after save behaviors, and sentinel values.
⌚ Chapters:
00:00 Countdown
02:38 Welcome to .NET Data Community Standup
03:19 State of the Unicorn
07:26 On today's session - keys and value generation
07:57 Sample code - value generation
08:56 Generated property Values: When?
11:56 Generated property Values: How?
14:25 Demo
46:18 Value Generators overview
51:48 Demo
55:12 Keys and value generation
59:37 Demo
01:25:46 Summary of GUID and INTs
01:33:41 Wrap
Links: learn.microsoft.com/ef/core/l...
Featuring: Arthur Vickers, Shay Rojansky