private void proceedbtn_Click(object sender, RoutedEventArgs e) { var userName = Usernametxtbox.Text; var password = Passwordtxtbox.Text; var clusterName = Clustertxtbx.Text; var connectionObj = new DatabaseOperationsReader(); connectionObj.AssignCredentialsToDatabase(userName, password, clusterName); var isConnected = connectionObj.ConnectToDatabase(DatabaseType.Cassandra); if (isConnected) { Visibility = Visibility.Hidden; var win = Window.GetWindow(this); var conversionTypeSelection = new ConversionTypeSelection(); var homePage = (HomePage)(win); if (homePage != null) homePage.ContentArea.Content = conversionTypeSelection; } else { ErrorLog.Visibility = Visibility.Visible; ErrorLog.Content = "Enter correct credentials."; } }