How to get values of multiple selected rows in TableView using Javafx? - javafx

Question

I have tried the following code for TableView Multiple Selection. I just want all the ID's of selected row in an ArrayList. But whenever I select rows instead of showing ID, complete row values are displayed.
package tabletest;
import java.util.ArrayList;
import java.util.ListIterator;
import javafx.application.Application;
import javafx.beans.property.ReadOnlyStringWrapper;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.SelectionMode;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
/**
*
* #author vikassingh
*/
public class TableTest extends Application {
#Override
public void start(Stage primaryStage) {
TableView<ObservableList<String>> tableLocal = new TableView<>();
tableLocal.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE);
TableColumn<ObservableList<String>, String> idCol = new TableColumn<>("ID");
TableColumn<ObservableList<String>, String> nameCol = new TableColumn<>("Customer Name");
tableLocal.getColumns().addAll(nameCol);
//idCol
idCol.setCellValueFactory(cellData -> {
ObservableList<String> rowValue = cellData.getValue();
String cellValue = rowValue.get(0);
return new ReadOnlyStringWrapper(cellValue);
});
//nameCol
nameCol.setCellValueFactory(cellData -> {
ObservableList<String> rowValue = cellData.getValue();
String cellValue = rowValue.get(1);
return new ReadOnlyStringWrapper(cellValue);
});
tableLocal.setOnMousePressed(new EventHandler<MouseEvent>() {
#Override
public void handle(MouseEvent event) {
ObservableList selectedItems = tableLocal.getSelectionModel().getSelectedItems();
System.out.println(selectedItems);
// TEST
ArrayList<String> selectedIDs = new ArrayList<String>();
for (int i = 0; i < selectedItems.size(); i++) {
ObservableList<String> innerSelectedItems = FXCollections.observableArrayList(selectedItems.get(i).toString());
for (String ID : innerSelectedItems) {
selectedIDs.add(ID);
}
}
ListIterator<String> iterator = selectedIDs.listIterator();
while (iterator.hasNext()) {
System.out.println(iterator.next());
}
// END TEST
}
});
ObservableList<String> row1 = FXCollections.observableArrayList();
row1.add("1");
row1.add("Cust One");
ObservableList<String> row2 = FXCollections.observableArrayList();
row2.add("2");
row2.add("Cust Two");
ObservableList<String> row3 = FXCollections.observableArrayList();
row3.add("3");
row3.add("Cust Three");
ObservableList<ObservableList<String>> filteredDataLocal = FXCollections.observableArrayList();
filteredDataLocal.addAll(row1, row2, row3);
tableLocal.setItems(filteredDataLocal);
VBox root = new VBox();
root.getChildren().addAll(tableLocal);
Scene scene = new Scene(root, 300, 300);
primaryStage.setScene(scene);
primaryStage.show();
}
}

Answer 1

Since the id is the first element in the list representing each row, you just need
tableLocal.setOnMousePressed(new EventHandler<MouseEvent>() {
#Override
public void handle(MouseEvent event) {
ObservableList<ObservableList<String>> selectedItems = tableLocal.getSelectionModel().getSelectedItems();
System.out.println(selectedItems);
// TEST
ArrayList<String> selectedIDs = new ArrayList<String>();
for (ObservableList<String> row : selectedItems) {
selectedIDs.add(row.get(0));
}
ListIterator<String> iterator = selectedIDs.listIterator();
while (iterator.hasNext()) {
System.out.println(iterator.next());
}
// END TEST
}
});