1.表格視圖 TableView

ableView是JavaFX提供的一個(gè)強(qiáng)大的控件，可以用于顯示表格數(shù)據(jù)。它通過為TableView設(shè)定items屬性（存儲(chǔ)行數(shù)據(jù)的ObservableList對象）和列屬性（TableColumn對象）來完成數(shù)據(jù)填充與展示。

以下是一個(gè)簡單的TableView的使用示例：

public class TableViewExample extends Application {

    //創(chuàng)建表格
    private TableView<Person> table = new TableView<Person>();
    private ObservableList<Person> data =
            FXCollections.observableArrayList(
                    new Person("John", "Doe"),
                    new Person("Jane", "Deer"));

    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage stage) {
        //構(gòu)建場景
        Scene scene = new Scene(new Group());
        stage.setTitle("Table View Sample");
        stage.setWidth(300);
        stage.setHeight(500);

        //創(chuàng)建列
        TableColumn firstNameCol = new TableColumn("First Name");
        firstNameCol.setMinWidth(100);
        firstNameCol.setCellValueFactory(
                new PropertyValueFactory<Person, String>("firstName"));

        TableColumn lastNameCol = new TableColumn("Last Name");
        lastNameCol.setMinWidth(100);
        lastNameCol.setCellValueFactory(
                new PropertyValueFactory<Person, String>("lastName"));

        //表格加入列
        table.setItems(data);
        table.getColumns().addAll(firstNameCol, lastNameCol);

        ((Group) scene.getRoot()).getChildren().addAll(table);
        stage.setScene(scene);
        stage.show();
    }

    //對象
    public static class Person {

        private final String firstName;
        private final String lastName;

        private Person(String fName, String lName) {
            this.firstName = fName;
            this.lastName = lName;
        }

        public String getFirstName() {
            return firstName;
        }

        public String getLastName() {
            return lastName;
        }

    }
}

?1.1 TableView 選中事件

public class TableSelectApp extends Application {

    @Override
    public void start(Stage primaryStage) throws Exception {
        //創(chuàng)建表格
        TableView<Item> tblItems = new TableView<>();
        tblItems.setColumnResizePolicy(TableView.CONSTRAINED_RESIZE_POLICY);

        VBox.setVgrow(tblItems, Priority.ALWAYS );

        //創(chuàng)建列
        TableColumn<Item, String> colSKU = new TableColumn<>("SKU");
        TableColumn<Item, String> colDescr = new TableColumn<>("Item");
        TableColumn<Item, Float> colPrice = new TableColumn<>("Price");
        TableColumn<Item, Boolean> colTaxable = new TableColumn<>("Tax");

        //列對應(yīng)實(shí)體屬性
        colSKU.setCellValueFactory( new PropertyValueFactory<>("sku") );
        colDescr.setCellValueFactory( new PropertyValueFactory<>("descr") );
        colPrice.setCellValueFactory( new PropertyValueFactory<>("price") );
        colTaxable.setCellValueFactory( new PropertyValueFactory<>("taxable") );

        //表格加入列
        tblItems.getColumns().addAll(
                colSKU, colDescr, colPrice, colTaxable
        );

        //添加數(shù)據(jù)
        tblItems.getItems().addAll(
                new Item("KBD-0455892", "Mechanical Keyboard", 100.0f, true),
                new Item( "145256", "Product Docs", 0.0f, false ),
                new Item( "OR-198975", "O-Ring (100)", 10.0f, true)
        );
        //創(chuàng)建按鈕
        Button btnInventory = new Button("Inventory");
        Button btnCalcTax = new Button("Tax");

        //按鈕是否可用屬性綁定表格選中的數(shù)據(jù)對應(yīng)的descr屬性
        btnInventory.disableProperty().bind(
                tblItems.getSelectionModel().selectedItemProperty().isNull()
        );

        //按鈕是否可用屬性綁定表格選中的數(shù)據(jù)對應(yīng)的taxable屬性
        btnCalcTax.disableProperty().bind(
                tblItems.getSelectionModel().selectedItemProperty().isNull().or(
                        Bindings.select(
                                tblItems.getSelectionModel().selectedItemProperty(),
                                "taxable"
                        ).isEqualTo(false)
                )
        );

        //構(gòu)建場景
        HBox buttonHBox = new HBox( btnInventory, btnCalcTax );
        buttonHBox.setSpacing( 8 );

        VBox vbox = new VBox( tblItems, buttonHBox );
        vbox.setPadding( new Insets(10) );
        vbox.setSpacing( 10 );

        Scene scene = new Scene(vbox);

        primaryStage.setTitle("TableSelectApp");
        primaryStage.setScene( scene );
        primaryStage.setHeight( 376 );
        primaryStage.setWidth( 667 );
        primaryStage.show();
    }

    public static void main(String[] args) {

        launch(args);
    }

    public class Item {

        private final String sku;
        private final String descr;
        private final Float price;
        private final Boolean taxable;

        public Item(String sku, String descr, Float price, Boolean taxable) {
            this.sku = sku;
            this.descr = descr;
            this.price = price;
            this.taxable = taxable;
        }

        public String getSku() {
            return sku;
        }

        public String getDescr() {
            return descr;
        }

        public Float getPrice() {
            return price;
        }

        public Boolean getTaxable() {
            return taxable;
        }
    }

}

演示應(yīng)用程序是一個(gè)TableView和一對按鈕。有TableView四個(gè)表列：SKU、商品、價(jià)格、稅費(fèi)。該TableView圖顯示三行中的三個(gè)對象：機(jī)械鍵盤、產(chǎn)品文檔、O 形圈。以下屏幕截圖顯示了應(yīng)用程序啟動(dòng)后立即出現(xiàn)的情況。按鈕Inventory綁定了Item屬性，Tax按鈕綁定了Tax屬性

?

點(diǎn)擊第一行，兩個(gè)按鈕都被激活

?若此文檔不夠詳細(xì)，?可以參考十分鐘教你JAVAFX基礎(chǔ)入門_嗶哩嗶哩_bilibili?文章來源地址http://www.zghlxwxcb.cn/news/detail-726801.html

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