我必须在javafx中填充一个2列表,我想知道这样做的最佳方法是什么?
基本上我有这堂课
public class Name {
private String _name;
private Rating _rating;
public Name(String name , Rating rating) {
_name = name;
_rating = Rating.NO_RATING;
}
public String getName() {
return _name;
}
public Rating getRating() {
return _rating;
}
}
我想在javafx中填充一个表,以使一列具有名称,而一列具有评级。我已经尝试通过名称类填充并使用getName()getRating()方法填充,但这不起作用。我在网上搜索了一个名为“属性”的东西,但是由于我没有任何属性,在这种情况下如何使用属性?
答案 0 :(得分:1)
在数据模型中,使用属性扭曲要在表中显示的属性:
//data model
public class Name {
private SimpleStringProperty name;
private SimpleIntegerProperty rating;
public Name(String name , int rating) {
this.name = new SimpleStringProperty(name);
this.rating = new SimpleIntegerProperty(rating);
}
public String getName() {
return name.get();
}
public int getRating() {
return rating.get();
}
}
并在表格列中使用这些属性
import javafx.application.Application;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.Scene;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.stage.Stage;
public class TableViewDemo extends Application {
private final ObservableList<Name> data =
FXCollections.observableArrayList(
new Name("Jacob", 12),
new Name("Isabella", 14),
new Name("Ethan", 5),
new Name("Emma", 17),
new Name("Michael",9));
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage stage) {
stage.setTitle("Table View Sample");
TableColumn<Name, String> nameCol = new TableColumn<>("Name");
nameCol.setMinWidth(100);
nameCol.setCellValueFactory(new PropertyValueFactory<>("name"));
TableColumn<Name, Integer> ratingCol = new TableColumn<>("Rating");
ratingCol.setMinWidth(100);
ratingCol.setCellValueFactory(new PropertyValueFactory<Name, Integer>("rating"));
final TableView<Name> table = new TableView<>();
table.setItems(data);
table.getColumns().addAll(nameCol, ratingCol);
Scene scene = new Scene(table);
stage.setScene(scene);
stage.show();
}
}
编辑以回应 kleopatra's comment:
您还可以将属性用作单元格值工厂。将数据模型更改为:
public class Name {
private SimpleStringProperty name;
private SimpleIntegerProperty rating;
public Name(String name , int rating) {
this.name = new SimpleStringProperty(name);
this.rating = new SimpleIntegerProperty(rating);
}
public SimpleStringProperty nameProperty() { return name ; }
public SimpleIntegerProperty ratingProperty() { return rating; }
}
并通过以下方式定义列:
TableColumn<Name, String> nameCol = new TableColumn<>("Name");
nameCol.setCellValueFactory(cellData -> cellData.getValue().nameProperty());
nameCol.setMinWidth(100);
TableColumn<Name, String> ratingCol = new TableColumn<>("Rating");
ratingCol.setCellValueFactory(cellData -> cellData.getValue().ratingProperty().asString());