public void AddCustomer(CustomerModel customerModel)
{
if (customerModel == null)
throw new ArgumentNullException("customerModel");
if (!_customers.Contains(customerModel)) {
_customers.Add(customerModel);
if (this.CustomerAdded != null)
this.CustomerAdded(this, new CustomerAddedEventArgs(customerModel));
}
}
public CustomerAddedEventArgs(CustomerModel newCustomerModel)
{
this.NewCustomerModel = newCustomerModel;
}
public bool ContainsCustomer(CustomerModel customerModel)
{
if (customerModel == null)
throw new ArgumentNullException("customerModel");
return _customers.Contains(customerModel);
}
