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javafx tableview column resizing issue


javafx tableview column resizing issue

By : Naveen Kumar
Date : November 20 2020, 11:01 PM
seems to work fine I had the same issue on my program, and I fixed it this way.
Leave the TableView as CONSTRAINED_RESIZE_POLICY. Then, on the TableColumn you want a certain width, set the max , min, and pref size to the same size. This way, it will be no bigger and no smaller than your size.
code :
<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.control.TableColumn?>
<?import javafx.scene.control.TableView?>
<?import javafx.scene.layout.BorderPane?>


<BorderPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8.0.91" xmlns:fx="http://javafx.com/fxml/1">
   <center>
      <TableView prefHeight="200.0" prefWidth="200.0" BorderPane.alignment="CENTER">
        <columns>
          <TableColumn prefWidth="75.0" text="First Name" />
          <TableColumn prefWidth="75.0" text="Last Name" />
            <TableColumn prefWidth="75.0" text="Email Address" />
            <TableColumn maxWidth="50.0" minWidth="50.0" prefWidth="50.0" text="Age" />
            <TableColumn maxWidth="50.0" minWidth="50.0" prefWidth="50.0" text="Height" />
        </columns>
         <columnResizePolicy>
            <TableView fx:constant="CONSTRAINED_RESIZE_POLICY" />
         </columnResizePolicy>
      </TableView>
   </center>
</BorderPane>
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;

import java.io.IOException;

public class Main extends Application {


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

    @Override
    public void start(Stage primaryStage) throws IOException {

        FXMLLoader loader = new FXMLLoader(getClass().getClassLoader().getResource("fxml/Environment.fxml"));
        Parent root = loader.load();
        Scene scene = new Scene(root,800,800);
        primaryStage.setScene(scene);
        primaryStage.show();
    }
}


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JavaFX: bind TableView column with number of rows of another TableView

JavaFX: bind TableView column with number of rows of another TableView


By : Oliversc
Date : March 29 2020, 07:55 AM
This might help you I have a TableView of Roads with a column Name and a column Number of Lanes. Number of Lanes show a integer that is the number of lanes of a road. When add a new road, I have another TableView where set the properties for a lane. My Lane class is: , Are you looking for something like:
code :
public class Road {
   private final ObservableList<Lane> lanes = FXCollections.observableArrayList();
   public final ObservableList<Lane> getLanes() {
      return lanes ;
   }

   private final ReadOnlyIntegerWrapper numberOfLanes = new ReadOnlyIntegerWrapper(this, "numberOfLanes");
   public final int getNumberOfLanes() {
      return numberOfLanes.get();
   }
   public ReadOnlyIntegerProperty numberOfLanesProperty() {
      return numberOfLanes.getReadOnlyProperty();
   }

   public Road() {
      numberOfLanes.bind(Bindings.size(lanes));
   }
}
Resizing Columns of a TableView in javaFX

Resizing Columns of a TableView in javaFX


By : user3042294
Date : March 29 2020, 07:55 AM
this one helps. TableView.setColumnResizePolicy() is what you are looking for.
For Example:
code :
tableView.setColumnResizePolicy(TableView.CONSTRAINED_RESIZE_POLICY);
TableView automatic row height resizing - JavaFX

TableView automatic row height resizing - JavaFX


By : Daniel Jesus G P
Date : March 29 2020, 07:55 AM
wish helps you I resolved this by placing an invalidation listener on the observablelist such updateItem is called every time the list size changes.
code :
@Override
public void updateItem(ObservableList<Foo2> item, boolean empty) {
    super.updateItem(item, empty);
    if (empty || item == null) {
        setText(null);
        setTooltip(null);
    } else {
        GridPane grid = new GridPane();
        int modulus;
        if (item.size() < 4) {
            modulus = 1;
        }
        else if (item.size() < 9) {
            modulus = 2;
        }
        else {
            modulus = 3;
        }
        for (int i = 0; i < item.size(); ++i) {
            Label label = new Label();
            label.setText(item.get(i).toString());
            grid.add(label, i % modulus, (i % item.size()) / modulus);
        }
        item.addListener(new InvalidationListener() {
            @Override
            public void invalidated(Observable observable) {
                updateItem(item, empty);
            }
        });
        setGraphic(grid);
        setContentDisplay(ContentDisplay.GRAPHIC_ONLY);
    }
}
JavaFx 2.1, 2.2 TableView update issue

JavaFx 2.1, 2.2 TableView update issue


By : Scott Tan
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further See the answer to Updating rows in Tableview. Add these getters and it will just work.
Additionally since the data is an ObservableList which is set as items to tableView, any changes to this data list will be reflected to the table.getItems() too. Namely no need to table.setItems(data) again.
JavaFX TableView performance issue

JavaFX TableView performance issue


By : Sergio
Date : March 29 2020, 07:55 AM
I wish this help you I made a lazy-load on tableview using the CellFactory class... I´ll try to explain, anyone with better english than mine fell free to edit and make it more understandable!
First I use a mandatory property in a Bean to check if that bean has already been loaded or not. This way I don't need to create an attribute specifically for that.
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