Default Values (of C# variables) Issue in LINQ to SQL Update

Question

I have the following code for updating Account table with LINQ to SQL. AccountNumber is the primary key column. The only value which need to be updated is AccountType; howev

Answer 1

This should do:

int number = 4;
var acc1 = new accountRepository.Accounts.Where(a => a.Number == number).FirstOrDefault();

if (acc1 == null)
{
    // Not found by ID, create new
    acc1 = new RepositoryLayer.Account();
    acc1.Number = number;
    accountRepository.Accounts.AddObject(acc1);
}

acc1.AccountType = "Verify";

accountRepository.SubmitChanges();