private void signup_Click(object sender, EventArgs e) { SqlDb db = new SqlDb(); MySqlCommand command = new MySqlCommand("INSERT INTO `users`(`Username`,`Name`,`Password`,`Admin Id`) VALUES (@usn,@nam,@pass,@Adi)", db.getConnection()); command.Parameters.Add("@usn", MySqlDbType.VarChar).Value = Username.Text; command.Parameters.Add("@nam", MySqlDbType.VarChar).Value = NameU.Text; command.Parameters.Add("@pass", MySqlDbType.VarChar).Value = Password.Text; command.Parameters.Add("@Adi", MySqlDbType.VarChar).Value = AdiD.Text; db.openConnection(); if (!checkTextBoxesValues()) { if (Password.Text.Equals(PasswordConf.Text)) { if (checkUsername()) { MessageBox.Show("This Username Already Exists, Select A Different One", "Duplicate Username", MessageBoxButtons.OKCancel, MessageBoxIcon.Error); } else { if (command.ExecuteNonQuery() == 1) { MessageBox.Show("Your Account Has Been Created", "Account Created", MessageBoxButtons.OK, MessageBoxIcon.Information); this.Hide(); Form1 log = new Form1(); log.Show(); } else { MessageBox.Show("ERROR"); } } } else { MessageBox.Show("Wrong Confirmation Password", "Password Error", MessageBoxButtons.OKCancel, MessageBoxIcon.Error); } } else { MessageBox.Show("Enter Your Informations First", "Empty Data", MessageBoxButtons.OKCancel, MessageBoxIcon.Error); } db.closeConnection(); }