Linq to SQL: Why am I getting IDENTITY_INSERT errors?

Question

I\'m using Linq to SQL. I have a DataContext against which I am .SubmitChanges()\'ing. There is an error inserting the identity field:

Cannot insert explicit value for         


        

Answer 1

If you are supplying the value of the IDENTITY column, you must add

SET IDENTITY_INSERT ON

before your SQL Statements, and

SET IDENTITY_INSERT OFF 

after to turn it off. That goes for ANY raw SQL. If you used LINQ to create an object like:

var customer = new LinqContext.Customer;
customer.FirstName = "Bob";
customer.LastName = "Smith";

LinqContent.Customer.Add(customer);
LinqContext.SubmitChanges();

I believe that will work, forgive me if I have classes wrong. You get the basic idea.

Edit: Oops.. Sorry, didn't read the entire question, I take it back, tired and fatigued from work...