void ConnectionSucces() { SaveDetBtn.Content = "Success!"; ButtonManip(0, false); string query = $"insert into hosts values('{createEmail.Text.Trim()}', '{ftpHost.Text.Trim()}', '{ftpUser.Text.Trim()}', '{ftpPass.Password.Trim()}')"; sql.ExecuteQuery(query); Properties.Settings.Default.CurrentUser = createEmail.Text.Trim(); Properties.Settings.Default.Save(); MainWindow mainWindow = new MainWindow(); mainWindow.Show(); Close(); }