private void addCustomerButton_Click(object sender, EventArgs e)
{
bool allFeildsFull = true;
string firstName = firstNameTextBox.Text;
if (firstName == "")
{
allFeildsFull = false;
}
string lastName = lastNameTextBox.Text;
if (lastName == "")
{
allFeildsFull = false;
}
string phoneNum = phoneTextBox.Text;
if (phoneNum == "")
{
allFeildsFull = false;
}
string email = emailTextBox.Text;
if (email == "")
{
allFeildsFull = false;
}
// Only forms with all fields completed shall pass
// If that is false, display an error message
// and pause program
if (allFeildsFull == false)
{
MessageBox.Show("ERROR! All fields must be filled out.");
}
else // All fields have data, so continue.
{
bool success = false;
Customer customer = new Customer(firstName, lastName, phoneNum, email);
if (File.Exists("customers.txt"))
{
success = CustomersController.AddCustomerToExistingList(customer);
}
else
{
success = CustomersController.AddCustomerToNewList(customer);
}
// Let the user know if the book was added successfully or not.
if (success)
{
MessageBox.Show(successString);
firstNameTextBox.Text = "";
lastNameTextBox.Text = "";
phoneTextBox.Text = "";
emailTextBox.Text = "";
}
else
{
MessageBox.Show(noSuccessString);
}
}
}