How to get the default border for TextField?

In my textfields entry UI, I have them red border if the user enters invalid data. However, I need to reset the border to how it was.

field.setStyle("-fx-border-color: gray;");

It does not have the default border on windows XP (JavaFX2.2.21)

The default border is rounded and lightgray.

I also tried without success

field.setStyle ("border - fx - color: null;" "");

- and/or border - color: null; ») ; r color: gray; »

The style sheet by default (in Java 7), caspian.css, is not actually apply a border to the text field at all but use layered backgrounds of different radii for the border effect.

The best way to achieve the desired effect is to add and remove a style from the text box class and set the border color in an external style sheet. However, you should be aware of the https://javafx-jira.kenai.com/browse/RT-23085. One solution is to define a border radius default of zero on the text field and a different RADIUS to your "custom" css class Given that the default style sheet does not have a border that won't break anything.

Example:

import java.util.regex.Pattern;

import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.scene.Scene;
import javafx.scene.control.TextField;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class ErrorTextFieldTest extends Application {

 @Override
  public void start(Stage primaryStage) {
  final VBox root = new VBox();
  final TextField textField = new TextField();
  root.getChildren().addAll(textField);

  final Pattern intPattern = Pattern.compile("-?[1-9]\\d*");
  final String errorCSSClass = "error" ;
  textField.textProperty().addListener(new ChangeListener() {
      @Override
      public void changed(ObservableValue observable,
          String oldValue, String newValue) {
        if (newValue.length()==0 || intPattern.matcher(newValue).matches()) {
          textField.getStyleClass().remove(errorCSSClass);
        } else if (! textField.getStyleClass().contains(errorCSSClass)) {
          textField.getStyleClass().add(errorCSSClass);
        }
        System.out.println(textField.getStyleClass());
      }
    });

  Scene scene = new Scene(root, 200, 100);
  scene.getStylesheets().add(getClass().getResource("errorTextField.css").toExternalForm());
  primaryStage.setScene(scene);
  primaryStage.show();
  }

  public static void main(String[] args) {
  launch(args);
  }
}

errorTextField.css:

@CHARSET "US-ASCII";
.text-field.error {
 -fx-border-color: red ;
  -fx-border-width: 2px ;
}
.text-field {
 -fx-border-width: 0px ;
}

(Note: there is no space in ".text - field.error".)

Tags: Java

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