java - 如何使我的 CheckBoxTableCell 在 Javafx 中可编辑？

Question

isText.setEditable(true);
        isText.setCellValueFactory(new Callback<CellDataFeatures<TableItem, Boolean>, ObservableValue<Boolean>>() {
            @Override
            public ObservableValue<Boolean> call(CellDataFeatures<TableItem, Boolean> p) {
                return new SimpleBooleanProperty(p.getValue().getIsText());
            }
        });
        isText.setCellFactory(new Callback<TableColumn<TableItem, Boolean>, TableCell<TableItem, Boolean>>() {
            @Override
            public TableCell<TableItem, Boolean> call(TableColumn<TableItem, Boolean> p) {
                return new CheckBoxTableCell<>();
            }
        });

这是我的代码，我真的想选中和取消选中该框，并通过我下面定义的方法更改原始数据，

/**
     * Set the boolean value of if this variable is viewed as text
     */
    public void setIsText(boolean newVal) {
        isText.set(newVal);
    }

这是我对 TableItem 的完整实现，

public class TableItem {
    private final SimpleIntegerProperty index;
    private final SimpleStringProperty variable;
    private final SimpleBooleanProperty isText;

    /**
     * Constructor for TableItem
     *
     * @param index
     *      index of the variable
     * @param variable
     *      variable name
     * @param isText
     *      initial boolean value of if it is viewed as a text or not
     */
    public TableItem (int index, String variable, boolean isText) {
        this.index = new SimpleIntegerProperty(index);
        this.variable = new SimpleStringProperty(variable);
        this.isText = new SimpleBooleanProperty(isText);
    }

    /**
     * Get the boolean value of if this variable is viewed as text
     * @return
     *      the boolean value notifies if the variable is text or not
     */
    public boolean getIsText() {
        return isText.get();
    }

    /**
     * Set the boolean value of if this variable is viewed as text
     */
    public void setIsText(boolean newVal) {
        isText.set(newVal);
    }

    /**
     * Get the index of the variable
     *
     * @return
     *      the index
     */
    public int getIndex() {
        return index.get();
    }

    /**
     * Get the string representation of the variable
     *
     * @return
     *      the string of the variable
     */
    public String getVariable() {
        return variable.get();
    }
}

Answer 1

要使 TableCell 可编辑，您需要设置 TableView.editable property也为true。

此外，您在 cellValueFactory 中创建一个新属性，这意味着编辑的值将不是 TableView 项的属性，而是新属性(property)；您的元素的值(value)不会改变。

将cellValueFactory更改为

new Callback<CellDataFeatures<TableItem, Boolean>, ObservableValue<Boolean>>() {
    @Override
    public ObservableValue<Boolean> call(CellDataFeatures<TableItem, Boolean> p) {
        return p.getValue().isTextProperty();
    }
}

并将以下属性 getter 添加到 TableItem

public BooleanProperty isTextProperty() {
    return this.isText;
}