public ActionResult AjaxAddCustomer(string lastName, string firstName)
        {
            if (ModelState.IsValid)
            {
                try
                {
                    var context = new SampleEntities();
                    var customer = new Customer();
                    UpdateModel(customer);
                    context.Customers.AddObject(customer);
                    context.SaveChanges();
                }
                catch (Exception e)
                {
                    Response.StatusCode = 500;
                    Response.AppendHeader("message",
                                          "There was an issue adding customer \"" + firstName + " " + lastName +
                                          "\". Please contact tech support with this message: " + Utility.GetInnermostException(e).Message);
                }
            }

            return View(new GridModel(GetCustomers()));
        }
 /// <summary>
 /// Create a new Customer object.
 /// </summary>
 /// <param name="id">Initial value of the ID property.</param>
 /// <param name="accountNumber">Initial value of the AccountNumber property.</param>
 /// <param name="lastName">Initial value of the LastName property.</param>
 /// <param name="firstName">Initial value of the FirstName property.</param>
 public static Customer CreateCustomer(global::System.Int32 id, global::System.String accountNumber, global::System.String lastName, global::System.String firstName)
 {
     Customer customer = new Customer();
     customer.ID = id;
     customer.AccountNumber = accountNumber;
     customer.LastName = lastName;
     customer.FirstName = firstName;
     return customer;
 }
 /// <summary>
 /// Deprecated Method for adding a new object to the Customers EntitySet. Consider using the .Add method of the associated ObjectSet&lt;T&gt; property instead.
 /// </summary>
 public void AddToCustomers(Customer customer)
 {
     base.AddObject("Customers", customer);
 }