inserting extra data in linq to sql partial class

Question

I have a L2S generated class called Accounts, I have a L2S class called UsersInAccounts I need to add a function call AddUserToAccount(accountid, userid) should/could this function be added to the partial Accounts class I have created or are partial classes used for getting data rather than editing data

 public partial class Account
    {

        public void addUser(Guid userid)
        {
           // code
        }
    }

Answer 1

I don't think that what you are doing is a problem. In your code, you'd probably have an Account instance that you want to do things with so being able to do this:

Account theAccountIWant = GetTheAccount();
theAccountIWant.addUser(myUsersGUID);

...seems pretty intuitive. It might be an idea to do some error trapping inside your addUser method and pass back some sort of success status but that's another discussion.

edit: As advised, if you then retrieve a User object and want to attach it to the Account using the AccountUsers property then this is no use unless you pass the DataContext in.