DNN Create User example

public static void CreateDealerUserProfile(UserOfDealerEntity entity)
        {
            UserInfo ui = new UserInfo();
            ui.FirstName = entity.FirstName;
            ui.LastName = entity.LastName;
            ui.DisplayName = ui.FirstName + " " + ui.LastName;
            ui.Email = entity.Email;
            

            //ui.UserID = entity.UserID;
            ui.Username = entity.UserName;
            ui.PortalID = 0;

            ui.Membership.Email = entity.Email;
            ui.Membership.Approved = true;
            ui.Membership.Password = entity.Password;
            ui.Membership.UpdatePassword = true;
            ui.Membership.Username = entity.UserName;

            UserCreateStatus status = UserController.CreateUser(ref ui);
            if (status == UserCreateStatus.AddUser || status == UserCreateStatus.Success)
            {
                //add role
                RoleController rc = new RoleController();
                RoleInfo ri = rc.GetRoleByName(0, "Dealer User");
                rc.AddUserRole(0, ui.UserID, ri.RoleID, Null.NullDate);

                UserInfo newui = UserController.GetUser(0, ui.UserID, false);

                //update profile
                UserProfile up = new UserProfile();
                newui.Profile.SetProfileProperty("DealerName", entity.Dealer.ToString());
                newui.Profile.Telephone = entity.PhoneNumber;
                newui.Profile.SetProfileProperty("Position", entity.Position);
                UserController.UpdateUser(0, newui);
            }
        }