Question

i am creating an simple email sending application, in my application every time i have to put email id or password but i want to save them one i have put it in text fields like we save our username or passwords for login.

this is my code:

        try
        {
            // setup mail message
            MailMessage message = new MailMessage();
            message.From = new MailAddress(textBox1.Text);
            message.To.Add(new MailAddress(textBox2.Text));
            message.Subject = textBox3.Text;
            message.Body = richTextBox1.Text;

            // setup mail client
            if (textBox1.Text.Contains("gmail"))
            {
                SmtpClient mailClient = new SmtpClient("smtp.gmail.com");
                mailClient.Credentials = new NetworkCredential(textBox1.Text, textBox4.Text);
                mailClient.Send(message);

                MessageBox.Show("Sent from Gmail");
            }
            else if (textBox1.Text.Contains("yahoo"))
            {
                SmtpClient mailClient = new SmtpClient("smtp.mail.yahoo.com");
                mailClient.Credentials = new NetworkCredential(textBox1.Text, textBox4.Text);
                mailClient.Send(message);

                MessageBox.Show("Sent from Yahoo");
            }
        }
        catch (Exception)
        {
            MessageBox.Show("Error");
        }

Answer 1

If it is just for one user. You can put this information in the App.Config if it will be more users you can set this an a datasource (Database, XML, etc.)