JavaFX 8 - 如何将TextField文本属性绑定到TableView整数属性

时间:2014-03-24 23:26:08

标签: java javafx javafx-8

我们说我的情况是这样的:我有一个TableView(tableAuthors),其中有两个TableColumns(ID和姓名)。

这是TableView使用的AuthorProps POJO:

import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleStringProperty;


public class AuthorProps {
    private final SimpleIntegerProperty authorsId;
    private final SimpleStringProperty authorsName;


    public AuthorProps(int authorsId, String authorsName) {
        this.authorsId = new SimpleIntegerProperty(authorsId);
        this.authorsName = new SimpleStringProperty( authorsName);
    }

    public int getAuthorsId() {
        return authorsId.get();
    }

    public SimpleIntegerProperty authorsIdProperty() {
        return authorsId;
    }

    public void setAuthorsId(int authorsId) {
        this.authorsId.set(authorsId);
    }

    public String getAuthorsName() {
        return authorsName.get();
    }

    public SimpleStringProperty authorsNameProperty() {
        return authorsName;
    }

    public void setAuthorsName(String authorsName) {
        this.authorsName.set(authorsName);
    }
}

让我们说我有两个TextFields(txtId和txtName)。现在,我想将表格单元格中的值绑定到TextFields

 tableAuthors.getSelectionModel()
                .selectedItemProperty()
                .addListener((observableValue, authorProps, authorProps2) -> {
                    //This works:
                    txtName.textProperty().bindBidirectional(authorProps2.authorsNameProperty());
                    //This doesn't work:
                    txtId.textProperty().bindBidirectional(authorProps2.authorsIdProperty());
                });

我可以将姓名TableColumn绑定到txtName TextField,因为authorsNamePropertySimpleStringProperty,但我无法将ID TableColumn绑定到txtId { {1}}因为TextFieldauthorsIdProperty。我的问题是:如何将txtId绑定到Id SimpleIntegerProperty

P.S。如果有必要,我可以提供工作示例。

1 个答案:

答案 0 :(得分:17)

尝试:

txtId.textProperty().bindBidirectional(authorProps2.authorsIdProperty(), new NumberStringConverter());