Javafx Tableview无需输入键即可保存数据

Question

I tried to find a solution to save data for my editable cell direct without pressing enter to save it. Most solutions were for starting editing without double click(I implemented that) and I saw no solution for saving data without enter key. So based on my knowledge and research I didn't find anything to help me, is this what I'm asking possible and how to do it?

Edited:

@FXML
private TableView tableVeiwResults;
@FXML
private TableColumn colAnalysis;
@FXML
private TableColumn colResult;
private AnalysisPacientDetailsJpaController apdjpa = new 
AnalysisPacientDetailsJpaController(emf);

 colAnalysis.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<AnalysisPacientDetails, String>, ObservableValue<String>>() {
        @Override
        public ObservableValue<String> call(TableColumn.CellDataFeatures<AnalysisPacientDetails, String> param) {
            return new SimpleStringProperty((param.getValue()).getIdAnalysis().getAnalysisName());

        }
    });


 colResult.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<AnalysisPacientDetails, String>, ObservableValue<String>>() {
        @Override
        public ObservableValue<String> call(TableColumn.CellDataFeatures<AnalysisPacientDetails, String> param) {
            return new SimpleStringProperty((param.getValue()).getAnalysisPacientDetailsResults());
        }
    });

 colResult.setOnEditCommit(new EventHandler<TableColumn.CellEditEvent<AnalysisPacientDetails, String>>() {
        @Override
        public void handle(TableColumn.CellEditEvent<AnalysisPacientDetails, String> event) {
            try {

                String newValue = event.getNewValue();
                if (newValue == null || newValue.trim().isEmpty()) {
                    return;
                }

AnalysisPacientDetails apdRes = (AnalysisPacientDetails) tableVeiwResults.getSelectionModel().getSelectedItem();


apdRes.setAnalysisPacientDetailsRezultat(event.getNewValue());

                apdjpa.edit(apdRes);

tableVeiwResults.refresh();
                TablePosition pos = tableVeiwResults.getFocusModel().getFocusedCell();
                if (pos.getRow() < tableVeiwResults.getItems().size() - 1) {

tableVeiwResults.getSelectionModel().clearAndSelect(pos.getRow() + 1, pos.getTableColumn());
                }
            } catch (Exception ex) {
                ex.printStackTrace();
            }
  }
});

Answer 1

If I understand your question you want to have the data commit to the cell without hitting enter (ie user hits tab).

We created our own custom table cells to handle this. Here is an example.

import javafx.beans.value.ChangeListener;
import javafx.event.Event;
import javafx.scene.control.TableCell;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableColumn.CellEditEvent;
import javafx.scene.control.TablePosition;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;
import javafx.scene.input.KeyCode;
public class EditableStringTableCell<T, E> extends TableCell<T, String> {
    protected TextField textField;
    protected ChangeListener<? super Boolean> changeListener = (obs,ov, nv) -> {
        if (!nv) {
            commitEdit(textField.getText());
        }
    };

    public EditableStringTableCell () {

    }

    @Override
    public void startEdit() {
        if(editableProperty().get()){
            if (!isEmpty()) {
                super.startEdit();
                createTextField();
                setText(null);
                setGraphic(textField);
                textField.requestFocus();
            }
        }
    }

    @Override
    public void cancelEdit() {
        super.cancelEdit();
        setText((String) getItem());
        setGraphic(null);
    }

    @Override
    public void updateItem(String item, boolean empty) {
        super.updateItem(item, empty);

        if (empty) {
            setText(null);
            setGraphic(null);
        } else {
            if (isEditing()) {
                if (textField != null) {
                    textField.setText(getString());
                    textField.selectAll();
                }
                setText(null);
                setGraphic(textField);
            } else {
                setText(getString());
                setGraphic(null);
            }
        }
    }

    protected void createTextField() {
        textField = new TextField(getString());
        textField.setMinWidth(this.getWidth() - this.getGraphicTextGap() * 2);
        textField.focusedProperty().addListener(changeListener);
        textField.setOnAction(evt -> commitEdit(textField.getText()));

        textField.setOnKeyPressed((ke) -> {
            if (ke.getCode().equals(KeyCode.ESCAPE)) {
                textField.focusedProperty().removeListener(changeListener);
                cancelEdit();
            }
            if (ke.getCode().equals(KeyCode.TAB)) {
                commitEdit(textField.getText());
            }
        });
    }



    protected String getString() {
        return getItem() == null ? "" : getItem().toString();
    }

    @Override
    @SuppressWarnings({"unchecked", "rawtypes"})
    public void commitEdit(String item) {
        textField.focusedProperty().removeListener(changeListener);
        if (isEditing()) {
            super.commitEdit(item);
        } else {
            final TableView table = getTableView();
            if (table != null) {
                TablePosition position = new TablePosition(getTableView(),
                        getTableRow().getIndex(), getTableColumn());
                CellEditEvent editEvent = new CellEditEvent(table, position,
                        TableColumn.editCommitEvent(), item);
                Event.fireEvent(getTableColumn(), editEvent);
            }
            updateItem(item, false);
            if (table != null) {
                table.edit(-1, null);
            }

        }
    }

}