는 동적 자바 FX

Question

에있는 TableView에 해시 맵 데이터를 첨가 I 한 열 함유 키 I 원하는

public class myMap { 
    Map<Symbol, Price> map; 
} 

자바 FX

에 대응하는 값을 포함하는 다른 열이 테이블을 표시 할 prices.I에지도 맵핑 심볼을 다음과 같은 표를 표시하려면 기호 | 가격

콜백과 함께 TableView를 사용하여 수행 할 수 있습니다.

Answer 1

희망이 도움이 될 수 있습니다.

public class Demo { 

public static void main(String[] args) { 

    // Use Java Collections to create the List. 
    Map<String,String> map = new HashMap<String,String>(); 

    // Now add observability by wrapping it with ObservableList. 
    ObservableMap<String,String> observableMap = FXCollections.observableMap(map); 
    observableMap.addListener(new MapChangeListener() { 
     @Override 
     public void onChanged(MapChangeListener.Change change) { 
      System.out.println("Detected a change! "); 
     } 
    }); 

    // Changes to the observableMap WILL be reported. 
    observableMap.put("key 1","value 1"); 
    System.out.println("Size: "+observableMap.size()); 

    // Changes to the underlying map will NOT be reported. 
    map.put("key 2","value 2"); 
    System.out.println("Size: "+observableMap.size()); 

    } 
} 

이미 내 코드를 추가 할 것이 비슷한 짓을했는지 때문에

http://docs.oracle.com/javafx/2/collections/jfxpub-collections.htm

Answer 2

.

import java.util.Map; 
import javafx.application.Application; 
import javafx.beans.property.ReadOnlyObjectWrapper; 
import javafx.beans.property.SimpleStringProperty; 
import javafx.collections.FXCollections; 
import javafx.collections.MapChangeListener; 
import javafx.collections.ObservableMap; 
import javafx.event.ActionEvent; 
import javafx.scene.Scene; 
import javafx.scene.control.Button; 
import javafx.scene.control.TableColumn; 
import javafx.scene.control.TableView; 
import javafx.scene.control.cell.TextFieldTableCell; 
import javafx.scene.layout.VBox; 
import javafx.stage.Stage; 
import javafx.util.converter.NumberStringConverter; 

public class MapTable extends Application { 

    @Override 
    public void start(Stage primaryStage) { 
     final ObservableMap<String, Number> obsMap = FXCollections.observableHashMap(); 
     for (int i = 0; i < 3; i++) obsMap.put("key "+i, i*10d); 

     final TableView<ObservableMap.Entry<String, Number>> tv = new TableView(FXCollections.observableArrayList(obsMap.entrySet())); 
     tv.setEditable(true); 

     obsMap.addListener((MapChangeListener.Change<? extends String, ? extends Number> change) -> { 
      tv.setItems(FXCollections.observableArrayList(obsMap.entrySet())); 
     }); 

     TableColumn<ObservableMap.Entry<String, Number>,String> keyCol = new TableColumn<>("key"); 
     TableColumn<ObservableMap.Entry<String, Number>,Number> priceCol = new TableColumn<>("price"); 
     tv.getColumns().addAll(keyCol,priceCol); 

     keyCol.setCellValueFactory((p) -> { 
      return new SimpleStringProperty(p.getValue().getKey()); 
     }); 

     keyCol.setCellFactory(TextFieldTableCell.forTableColumn()); 
     keyCol.setOnEditCommit((TableColumn.CellEditEvent<Map.Entry<String,Number>, String> t) -> { 
      final String oldKey = t.getOldValue(); 
      final Number oldPrice = obsMap.get(oldKey); 
      obsMap.remove(oldKey); 
      obsMap.put(t.getNewValue(),oldPrice); 
     }); 

     priceCol.setCellValueFactory((p) -> { 
      return new ReadOnlyObjectWrapper<>(p.getValue().getValue()); 
     }); 

     priceCol.setCellFactory(TextFieldTableCell.forTableColumn(new NumberStringConverter())); 
     priceCol.setOnEditCommit((TableColumn.CellEditEvent<Map.Entry<String,Number>, Number> t) -> { 
      obsMap.put(t.getTableView().getItems().get(t.getTablePosition().getRow()).getKey(),//key 
         t.getNewValue());//val); 
     }); 

     Button btn1 = new Button(); 
     btn1.setText("Add data"); 
     btn1.setOnAction((ActionEvent event) -> { 
      obsMap.put("hi",100); 
     }); 

     Button btn2 = new Button(); 
     btn2.setText("verify data"); 
     btn2.setOnAction((ActionEvent event) -> { 
      for (Map.Entry<String,Number> me : obsMap.entrySet()) 
       System.out.println("key "+me.getKey()+" val "+me.getValue()); 
     }); 

     VBox root = new VBox(tv,btn1,btn2); 
     Scene scene = new Scene(root, 300, 250); 

     primaryStage.setTitle("Map Table test"); 
     primaryStage.setScene(scene); 
     primaryStage.show(); 
    } 



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

}