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);
}
private void registerToolStripMenuItem_Click(object sender, EventArgs e)
{ //Define new register form
RegisterCustomer Register = new RegisterCustomer();
Register.ShowDialog(this);
}