private void button_send_Click(object sender, EventArgs e) { if (String.IsNullOrEmpty(TextBox_title.Text)) { MessageBox.Show("Enter title"); } else if (String.IsNullOrEmpty(TextBox_body.Text)) { MessageBox.Show("Enter message body"); } else { string name; if (registrar != null) { name = registrar.Name; } else { name = ST.Name; } CollectiveMessage ms = new CollectiveMessage() { senderName = name, text = TextBox_body.Text, title = TextBox_title.Text }; SettingDatabase.Add_Message(ms); TextBox_title.Clear(); TextBox_body.Clear(); } }