private void searchEmailsToolStripMenuItem_Click(object sender, EventArgs e) { List <Customer> customers = pastel.GetCustomers(false, null); String reportPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "reports", "astrodon email addresses.csv"); StreamWriter writer = new StreamWriter(reportPath); foreach (Customer c in customers) { String line = c.accNumber + ","; foreach (String email in c.Email) { if (!String.IsNullOrEmpty(email)) { line += email; } } writer.WriteLine(line); } writer.Close(); MessageBox.Show("Done"); }