如何在 treetableview 的父行中禁用任何可编辑的单元格？请查看图片并检查示例代码。如果行可扩展（根行或子根行），很快我想禁用行可编辑
这张图片是正确的
但这不正确
**示例代码**
import javafx.application.Application;
import javafx.beans.property.ReadOnlyStringWrapper;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
import javafx.beans.value.ObservableValue;
import javafx.scene.Scene;
import javafx.scene.control.TextField;
import javafx.scene.control.TreeItem;
import javafx.scene.control.TreeTableCell;
import javafx.scene.control.TreeTableColumn;
import javafx.scene.control.TreeTableView;
import javafx.scene.control.cell.TreeItemPropertyValueFactory;
import javafx.scene.layout.HBox;
import javafx.stage.Stage;
import javafx.util.Callback;
public class TreeTableExample extends Application {
public static void main(String[] args) {
Application.launch(args);
}
@Override
@SuppressWarnings("unchecked")
public void start(Stage stage) {
HBox root = new HBox(createTable());
Scene scene = new Scene(root);
stage.setScene(scene);
stage.setTitle("Using a TreeTableView");
stage.show();
}
public TreeTableView createTable() {
TreeTableView<Person> treeTable = new TreeTableView<>();
treeTable.setEditable(true);
Callback<TreeTableColumn<Person, String>,
TreeTableCell<Person, String>> cellFactory
= (TreeTableColumn<Person, String> p) -> new EditingCell();
TreeTableColumn<Person, String> firstName = new TreeTableColumn<>("First Name");
firstName.setCellValueFactory(new TreeItemPropertyValueFactory<>("firstName"));
firstName.setCellFactory(cellFactory);
firstName.setOnEditCommit((TreeTableColumn.CellEditEvent<Person, String> event) -> {
if(event.getNewValue()!=null)
event.getRowValue().getValue().setFirstName(event.getNewValue());
});
TreeTableColumn<Person, String> lastName = new TreeTableColumn<>("Last Name");
lastName.setCellValueFactory(new TreeItemPropertyValueFactory<>("lastName"));
lastName.setCellFactory(cellFactory);
lastName.setOnEditCommit((TreeTableColumn.CellEditEvent<Person, String> event) -> {
if(event.getNewValue()!=null)
event.getRowValue().getValue().setLastName(event.getNewValue());
});
treeTable.getColumns().addAll(firstName, lastName);
TreeItem<Person> root = new TreeItem<>();
for (int i = 0; i < 5; i++) {
root.getChildren().add(new TreeItem<>(new Person()));
}
treeTable.setRoot(root);
return treeTable;
}
public class Person {
private SimpleStringProperty firstName;
private SimpleStringProperty lastName;
public Person(){
firstName = new SimpleStringProperty(this, "firstName");
lastName = new SimpleStringProperty(this, "lastName");
};
public String getFirstName() {
return firstName.get();
}
public void setFirstName(String fName) {
firstName.set(fName);
}
public String getLastName() {
return lastName.get();
}
public void setLastName(String fName) {
lastName.set(fName);
}
}
class EditingCell extends TreeTableCell<Person, String> {
private TextField textField;
public EditingCell() {
}
@Override
public void startEdit() {
if (!isEmpty()) {
super.startEdit();
createTextField();
setText(null);
setGraphic(textField);
textField.selectAll();
}
}
@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(!getTreeTableView().getTreeItem(getIndex()).isLeaf())
setEditable(false);
if (textField != null) {
textField.setText(getString());
}
setText(null);
setGraphic(textField);
} else {
setText(getString());
setGraphic(null);
}
}
private void createTextField() {
textField = new TextField(getString());
textField.setMinWidth(this.getWidth() - this.getGraphicTextGap() * 2);
textField.focusedProperty().addListener(
(ObservableValue<? extends Boolean> arg0,
Boolean arg1, Boolean arg2) -> {
if (!arg2) {
commitEdit(textField.getText());
}
});
}
private String getString() {
return getItem() == null ? "" : getItem();
}
}
}
只需运行它并双击根项目
make-individual-cell-editable-in-javafx-tableview 我检查了该解决方案适用于 tableview 但对于 treetaleview 不起作用。