JavaFX - Gridpane Growing Issue
<p>Hi I'm currently playing around with the GridPane in JavaFX and stumbled upon a problem... I want to create a layout with three rows where the middle one grows and takes up all available space but I just can't get it to work. The middle row grows too large and "pushes" the bottom row below the window to a point where it's no longer visible... How do I make so the bottom row is always at the bottom and let the middle row take up the available space inbetween, but no more... I'll paste my code below.</p>

<p>Thanks!</p>

<p>(NOTE: The code has been slightly altered for clarity but works the same way)</p>

<pre><code>RowConstraints row1 = new RowConstraints(25);
row1.setVgrow(Priority.NEVER);

RowConstraints row2 = new RowConstraints();
row2.setVgrow(Priority.ALWAYS);

RowConstraints row3 = new RowConstraints(25);
row3.setVgrow(Priority.NEVER);

ColumnConstraints column1 = new ColumnConstraints();
column1.setPercentWidth(100);

gridPane.getRowConstraints().add(0, row1);
gridPane.getRowConstraints().add(1, row2);
gridPane.getRowConstraints().add(2, row3);

gridPane.getColumnConstraints().add(0, column1);

gridPane.add(node1, 0, 0);
gridPane.add(node2, 0, 1);
gridPane.add(node3, 0, 2);
</code></pre>

<p>UPDATE! Adding a "Minimal, Complete, and Verifiable example"</p>

<p>Test.java</p>

<pre><code>import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.MenuBar;
import javafx.scene.layout.ColumnConstraints;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.RowConstraints;
import javafx.stage.Stage;

public class Test extends Application {

    @Override
    public void start(Stage primaryStage) {
        GridPane grid = new GridPane();

        MenuBar menuBar = new MenuBar();
        TestPane pane = new TestPane();

        RowConstraints menuRow = new RowConstraints(25);

        RowConstraints regRow = new RowConstraints();
        regRow.setPercentHeight(100);

        ColumnConstraints regColumn = new ColumnConstraints();
        regColumn.setPercentWidth(100);

        grid.getColumnConstraints().addAll(regColumn);
        grid.getRowConstraints().addAll(menuRow, regRow);

        grid.add(menuBar, 0, 0);
        grid.add(pane, 0, 1);

        Scene scene = new Scene(grid, 500, 350);

        primaryStage.setScene(scene);
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}
</code></pre>

<p>TestPane.java</p>

<pre><code>import javafx.scene.control.ListView;
import javafx.scene.control.TextField;
import javafx.scene.layout.ColumnConstraints;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.Priority;
import javafx.scene.layout.RowConstraints;

public class TestPane extends GridPane {

    public TestPane() {
        RowConstraints fixedRow = new RowConstraints(25);
        fixedRow.setVgrow(Priority.NEVER);

        RowConstraints growingRow = new RowConstraints();
        growingRow.setVgrow(Priority.ALWAYS);

        ColumnConstraints column = new ColumnConstraints();
        column.setPercentWidth(100);

        this.getRowConstraints().addAll(fixedRow, growingRow, fixedRow);
        this.getColumnConstraints().addAll(column);

        TextField field1 = new TextField();
        ListView list = new ListView&lt;&gt;();
        TextField field2 = new TextField();

        this.add(field1, 0, 0);
        this.add(list, 0, 1);
        this.add(field2, 0, 2);
    }
}
</code></pre>