JavaFX2.2並非所有的表列都顯示了PropertyValueFactory的數據？

Question

Goodevening everyone，

今天我偶然發現了一個相當奇怪的問題，我不知道我做錯了什麼。它關於使用PropertyValueFactory綁定表列。我在FXML中創建了表視圖和表列，並使用Scene Builder設置了適當的fx：id。

現在的問題是，一些列顯示預期的數據等欄目都只是空的。我想補充的內容與下面的代碼表視圖，當用戶按下一個按鈕：

ObservableList<User> olUsers = DA_User.getUsers(); 
tbl_MC_Manage_Users.getItems().addAll(olUsers); 

我肯定知道，在olUsers用戶對象包含所有需要的數據（以測試它的循環和系統。通過out.println）

我得到這樣一個結果：（<文本>代表列標題）

<disabled> <username> <title> <lastname> <firstname> <address> <zip> <city> 
false  (empty)  Mr.  (empty)  (empty)  address1 (empty) city1 
false  (empty)  Miss  (empty)  (empty)  address2 (empty) city2 

所以出於某種原因colums用戶名，姓，名，拉鍊沒有顯示任何數據.. 。

控制器的某些部分：

//declaration (these are the fx:id's connected to my table colums) 
@FXML private TableView<User> tbl_MC_Manage_Users; 
@FXML private TableColumn<User,Boolean> tc_MC_Manage_Disabled; 
@FXML private TableColumn<User,String> tc_MC_Manage_Username; 
@FXML private TableColumn<User,String> tc_MC_Manage_Title; 
@FXML private TableColumn<User,String> tc_MC_Manage_Lastname; 
@FXML private TableColumn<User,String> tc_MC_Manage_Firstname; 
@FXML private TableColumn<User,String> tc_MC_Manage_Address; 
@FXML private TableColumn<User,String> tc_MC_Manage_ZipCode; 
@FXML private TableColumn<User,String> tc_MC_Manage_City; 

@Override 
public void initialize(URL url, ResourceBundle rb) { 
... 
//setting the binding on the table columns at initialize(); 
    tc_MC_Manage_Disabled.setCellValueFactory(new PropertyValueFactory<User, Boolean>("disabled")); 
    tc_MC_Manage_Username.setCellValueFactory(new PropertyValueFactory<User, String>("username")); 
    tc_MC_Manage_Title.setCellValueFactory(new PropertyValueFactory<User, String>("title")); 
    tc_MC_Manage_Firstname.setCellValueFactory(new PropertyValueFactory<User, String>("firstname")); 
    tc_MC_Manage_Lastname.setCellValueFactory(new PropertyValueFactory<User, String>("lastname")); 
    tc_MC_Manage_Address.setCellValueFactory(new PropertyValueFactory<User, String>("address")); 
    tc_MC_Manage_ZipCode.setCellValueFactory(new PropertyValueFactory<User, String>("zipcode")); 
    tc_MC_Manage_City.setCellValueFactory(new PropertyValueFactory<User, String>("city")); 
... 
}  

以下是User類

private SimpleBooleanProperty disabled = new SimpleBooleanProperty(); 
private SimpleStringProperty username = new SimpleStringProperty(""); 
private SimpleStringProperty title = new SimpleStringProperty(""); 
private SimpleStringProperty lastname = new SimpleStringProperty(""); 
private SimpleStringProperty firstname = new SimpleStringProperty(""); 
//... (same for the others) 

//getters 
public boolean isDisabled() { return disabled.get(); } 
public String getTitle() { return title.get(); } 
public String getUsername() { return username.get(); } 
public String getLastName() { return lastname.get(); } 
public String getFirstName() { return firstname.get(); } 
//... (same for the others) 

//setters 
public void setDisabled(boolean value) { disabled.set(value); } 
public void setUsername(String value) { username.set(value); } 
public void setTitle(String value) { title.set(value); } 
public void setLastName(String value) { lastname.set(value); } 
public void setFirstName(String value) { firstname.set(value); } 
//... (same for the others) 

對不起，我的代碼加載的某些部分，但我真的不明白爲什麼只有幾列得到他們的數據。我希望有人能指出我在正確的方向:)

提前感謝！

Answer 1

如果你的二傳手被命名爲getFirstName然後屬性是firstName資本「N」。嘗試下：

tc_MC_Manage_Disabled.setCellValueFactory(new PropertyValueFactory<User, Boolean>("disabled")); 
tc_MC_Manage_Username.setCellValueFactory(new PropertyValueFactory<User, String>("userName")); 
tc_MC_Manage_Title.setCellValueFactory(new PropertyValueFactory<User, String>("title")); 
tc_MC_Manage_Firstname.setCellValueFactory(new PropertyValueFactory<User, String>("firstName")); 
tc_MC_Manage_Lastname.setCellValueFactory(new PropertyValueFactory<User, String>("lastName")); 
tc_MC_Manage_Address.setCellValueFactory(new PropertyValueFactory<User, String>("address")); 
tc_MC_Manage_ZipCode.setCellValueFactory(new PropertyValueFactory<User, String>("zipCode")); 
tc_MC_Manage_City.setCellValueFactory(new PropertyValueFactory<User, String>("city")); 

此外，我會建議你property方法添加到User類：

public StringProperty titleProperty() { return title; }; // etc 

它將使你的表，以反映數據的變化。見Binding JavaFX 2 TableView elements