How to write the id to the database correctly?

Question

C++ / C#

I can not make an entry in the id field, it constantly gives an error. If I manually enter a number, then everything is fine. And if I try to write through a variable that produces such error. In general, I would like the base to write the id on its own, but I did not find how to do it.

Answer 1

IDENTITY
Open your database in SSMS and change the column property

Answer 2

https://www.google.com/search?q=id+autoincrement (add subd name)