private void btnRegister_Click(object sender, EventArgs e)
{
if (checkFields() == false) // Check if any field is empty
{
//display error message
MessageBox.Show("Please complete all of the fields", "Empty Fields", MessageBoxButtons.OK, MessageBoxIcon.Error);
txtICPassport.Focus();
}
else if (NumberCheck(txtContactNumber.Text) == false) //Check if ContactNumber text box is filled with only numbers
{
//display error message
MessageBox.Show("Incorrect entered contact number. Please try again", "Invalid Contact Number", MessageBoxButtons.OK, MessageBoxIcon.Error);
txtContactNumber.Focus();
}
else if (EmailCheck(txtEmail.Text) == false) //Check if the entered email is correct or not
{
//display error message
MessageBox.Show("Incorrect email entered. Please try again", "Invalid Email", MessageBoxButtons.OK, MessageBoxIcon.Error);
txtEmail.Focus();
}
else
{ // Define a new connection to the database
DBConnect db = new DBConnect(); //calling the data connectin class
bool found = db.CheckCustomer(txtICPassport.Text); //checking the Customer ID
if (found == true)
{ // Deisplay an error message if the customer has registerd before
MessageBox.Show("This customer had already registered before", "Existing Entry", MessageBoxButtons.OK, MessageBoxIcon.Information);
txtICPassport.Focus();
}
else
{ //Register a new customer
bool success = db.RegisterCustomer(txtICPassport.Text, txtName.Text, txtAddress.Text, int.Parse(txtContactNumber.Text), txtEmail.Text); // if the customer had not registered before will call the register method
if (success == true) //if the connection is happened
{ //Display a message when the registeration is done successfully
DialogResult stay = new DialogResult();
stay = MessageBox.Show("Customer has registered sucessfully. Do you want to continue on registration form? ", "Successful Registeration", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (stay == DialogResult.No) //check if the user wants to leave registeration form
{
this.Close(); //Close the form
}
else
{
ClearAll(); //clear all the form's feilds
}
}
else //if the connection is faild display the message
{
MessageBox.Show("The connection to the database is being faild", "Faild Connection", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
}
}
bool CustChecking(string ID)
{ //Check if the customer ID is exist in customers list
bool Cust = true;
DBConnect CusCheck = new DBConnect();
bool success = CusCheck.CheckCustomer(ID);
if (success == false)
{
Cust = false;
DialogResult Cont;
Cont = MessageBox.Show("This customer has not registered before. Do you Want to continue on this window", "Invalid Customer's ID", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (Cont == DialogResult.No)
{
this.Close();
}
}
return(Cust);
}
bool CustChecking(string ID)
{// check if the customer ID exist in the customers list
bool Cust = true;
DBConnect CusCheck = new DBConnect();
bool success = CusCheck.CheckCustomer(ID);
if (success == false)
{
Cust = false;
DialogResult Cont;
Cont = MessageBox.Show("This customer has not been registered before. Do you want to register a new customer?", "Invalid Customer's ID", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (Cont == DialogResult.Yes)
{
RegisterCustomer Register = new RegisterCustomer();
Register.Show();
}
}
return(Cust);
}