private void btnAdd_Click(object sender, EventArgs e)
{
string name = txtName.Text;
string email = txtEmail.Text;
if (!string.IsNullOrWhiteSpace(name) || !string.IsNullOrWhiteSpace(email))
{
if (IsEmailValid(email))
{
Customer client = new Customer(++this.customerId, name, email);
if (notExists(client))
{
customerData.Add(client);
}
else
{
customerData.UpdateById(client, customerData.GetCustomers());
}
UpdateCustomerList();
}
else
{
MessageBox.Show("Invalid email!");
}
}
clearFields();
}
public static Customer AddCustomer(this CustomerData customerData, string firstName, string lastName, string address, string city, string state, string zipCode)
{
int customerNumber = customerData.Any() ? customerData.Max(m => m.CustomerNumber) + 1 : CustomerData.CustomerNumberSeed;
Customer customer = new Customer()
{
CustomerNumber = customerNumber, FirstName = firstName, LastName = lastName, Address = address, City = city, State = state, ZipCode = zipCode
};
customerData.Add(customer);
return(customer);
}
