TableView，使用'setCellValueFactory'方法不起作用

Question

該人定義了他們想要的行數，例如， 2.然後創建2行對象ItemSet。

public void initialize(URL location, ResourceBundle resources) { 
    btnCreateShop.setOnAction(e -> validate(0)); 
    ObservableList<String> options = 
      FXCollections.observableArrayList(
        "False", "True" 
      ); 
    cbPermission.setItems(options); 
    cbPermission.getSelectionModel().selectFirst(); 
    tbShopMaker.setDisable(true); 

} 

private void validate(int idValidate) { //This method basically ALLOWS the table to be intialized IF some random conditions are met. 
    if(idValidate == 0){ 
     if(tfShopName.getText().trim().length() == 0){ 
      //stuff occurs... ignore this line and if statement 
     } 
     tbShopMaker.setDisable(false); 
     initializeTableView(); 
    } 
} 

@FXML TableColumn tcRow1, tcRow2, tcRow3, tcRow4, tcRow5, tcRow6, tcRow7, tcRow8, tcRow9; 
private void initializeTableView() { 
    lblShopName.setText("Shop Name: " + tfShopName.getText()); 
    lblShopRows.setText("Shop Rows: " + tfShopRows.getText()); 
    final ObservableList<ItemSet> data = FXCollections.observableArrayList(); 
    for(int i=0;i<Integer.parseInt(tfShopRows.getText()); i++){ 
     data.add(new ItemSet()); 
    } 

    tcRow1.setCellValueFactory(
      new PropertyValueFactory<ItemSet, Integer>("item1") 
    ); 
    tcRow2.setCellValueFactory(
      new PropertyValueFactory<ItemSet, Integer>("item2") 
    ); 
    tcRow3.setCellValueFactory(
      new PropertyValueFactory<ItemSet, Integer>("item3") 
    ); 
    tcRow4.setCellValueFactory(
      new PropertyValueFactory<ItemSet, Integer>("item4") 
    ); 
    tcRow5.setCellValueFactory(
      new PropertyValueFactory<ItemSet, Integer>("item5") 
    ); 
    tcRow6.setCellValueFactory(
      new PropertyValueFactory<ItemSet, Integer>("item6") 
    ); 
    tcRow7.setCellValueFactory(
      new PropertyValueFactory<ItemSet, Integer>("item7") 
    ); 
    tcRow8.setCellValueFactory(
      new PropertyValueFactory<ItemSet, Integer>("item8") 
    ); 
    tcRow9.setCellValueFactory(
      new PropertyValueFactory<ItemSet, Integer>("item9") 
    ); 
    tblShop.getItems().setAll(data); 
    tblShop.setEditable(true); 
} 

這是我的表視圖控制器內部類的代碼。它根據用戶輸入的其他信息設置表格的內容。

這裏是套裝模型

public class ItemSet { 
    int[] items = new int[9]; 

    public ItemSet(int... args){ 
     for(int i = 0; i<args.length; i++){ 
      items[i] = args[i]; 
     } 
    } 
    public int getItem1(){ 
     return items[0]; 
    } 
    public int getItem2(){ 
     return items[1]; 
    } 
    public int getItem3(){ 
     return items[2]; 
    } 
    public int getItem4(){ 
     return items[3]; 
    } 
    public int getItem5(){ 
     return items[4]; 
    } 
    public int getItem6(){ 
     return items[5]; 
    } 
    public int getItem7(){ 
     return items[6]; 
    } 
    public int getItem8(){ 
     return items[7]; 
    } 
    public int getItem9(){ 
     return items[8]; 
    } 
} 

它一直是艱難的，我最近掌握設定內容，考慮到我剛剛從擺動移民到JavaFX的這一概念。我需要指導，或者幫助解決這個問題。

Answer 1

這裏是一個完整的例子，工作「setCellValueFactory」。與您的相比，並嘗試找到您的工作代碼：

import javafx.application.Application; 
import javafx.collections.FXCollections; 
import javafx.collections.ObservableList; 
import javafx.scene.Scene; 
import javafx.scene.control.*; 
import javafx.scene.control.cell.PropertyValueFactory; 
import javafx.scene.layout.VBox; 
import javafx.stage.Stage; 

public class ExampleApp extends Application 
{ 

    @Override 
    public void start(Stage stage) 
    { 

     TableView<ItemSet> tableView = initializeTableView(); 

     VBox grid = new VBox(20); 
     grid.getChildren().addAll(tableView); 

     Scene scene = new Scene(grid, 450, 250); 
     stage.setScene(scene); 
     stage.show(); 
    } 


    private TableView<ItemSet> initializeTableView() 
    { 
     final ObservableList<ItemSet> data = FXCollections.observableArrayList(); 
     for (int i = 0; i < 4; i++) 
     { 
      data.add(new ItemSet(1, 2, 3, 4, 5, 6, 7, 8, 9)); 
     } 

     TableColumn<ItemSet, Integer> tcRow1 = new TableColumn<>("tcRow1"); 
     tcRow1.setCellValueFactory(
       new PropertyValueFactory<>("item1") 
     ); 

     TableColumn<ItemSet, Integer> tcRow2 = new TableColumn<>("tcRow2"); 
     tcRow2.setCellValueFactory(
       new PropertyValueFactory<>("item2") 
     ); 

     TableColumn<ItemSet, Integer> tcRow3 = new TableColumn<>("tcRow3"); 
     tcRow3.setCellValueFactory(
       new PropertyValueFactory<>("item3") 
     ); 

     TableColumn<ItemSet, Integer> tcRow4 = new TableColumn<>("tcRow4"); 
     tcRow4.setCellValueFactory(
       new PropertyValueFactory<>("item4") 
     ); 

     TableColumn<ItemSet, Integer> tcRow5 = new TableColumn<>("tcRow5"); 
     tcRow5.setCellValueFactory(
       new PropertyValueFactory<>("item5") 
     ); 

     TableColumn<ItemSet, Integer> tcRow6 = new TableColumn<>("tcRow6"); 
     tcRow6.setCellValueFactory(
       new PropertyValueFactory<>("item6") 
     ); 

     TableColumn<ItemSet, Integer> tcRow7 = new TableColumn<>("tcRow7"); 
     tcRow7.setCellValueFactory(
       new PropertyValueFactory<>("item7") 
     ); 

     TableColumn<ItemSet, Integer> tcRow8 = new TableColumn<>("tcRow8"); 
     tcRow8.setCellValueFactory(
       new PropertyValueFactory<>("item8") 
     ); 

     TableColumn<ItemSet, Integer> tcRow9 = new TableColumn<>("tcRow9"); 
     tcRow9.setCellValueFactory(
       new PropertyValueFactory<>("item9") 
     ); 
     TableView<ItemSet> tableView = new TableView(); 
     tableView.getColumns().addAll(tcRow1, tcRow2, tcRow3, tcRow4, tcRow5, tcRow6, tcRow7, tcRow8, tcRow9); 
     tableView.getItems().setAll(data); 
     tableView.setEditable(true); 

     return tableView; 
    } 


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


    public static class ItemSet 
    { 
     int[] items = new int[9]; 


     public ItemSet(int... args) 
     { 
      for (int i = 0; i < args.length; i++) 
      { 
       items[i] = args[i]; 
      } 
     } 


     public int getItem1() 
     { 
      return items[0]; 
     } 


     public int getItem2() 
     { 
      return items[1]; 
     } 


     public int getItem3() 
     { 
      return items[2]; 
     } 


     public int getItem4() 
     { 
      return items[3]; 
     } 


     public int getItem5() 
     { 
      return items[4]; 
     } 


     public int getItem6() 
     { 
      return items[5]; 
     } 


     public int getItem7() 
     { 
      return items[6]; 
     } 


     public int getItem8() 
     { 
      return items[7]; 
     } 


     public int getItem9() 
     { 
      return items[8]; 
     } 
    } 
}