您好我正在编写基于http://docs.oracle.com/javafx/2/ui_controls/table-view.htm的TableView程序以及类似示例。 我正在使用JavaFX ScenBuilder 1.1生成表格
当程序启动时，我得到一堆不停止的lgos：看起来一遍又一遍地发生同样的错误。
以下是错误转储的一部分
SEVERE: javafx.scene.control.Control loadSkinClass Failed to load skin 'StringProperty [bean: TableRow[id=null, styleClass=cell indexed-cell table-row-cell], name: skinClassName, value: com.sun.javafx.scene.control.skin.TableRowSkin]' for control TableRow[id=null, styleClass=cell indexed-cell table-row-cell]
java.lang.IllegalArgumentException: Children: duplicate children added: parent = TableRowSkin[id=null, styleClass=cell indexed-cell table-row-cell]
at javafx.scene.Parent$1.onProposedChange(Parent.java:307)
at com.sun.javafx.collections.VetoableObservableList.setAll(VetoableObservableList.java:90)
at com.sun.javafx.scene.control.skin.TableRowSkin.updateCells(TableRowSkin.java:266)
at com.sun.javafx.scene.control.skin.TableRowSkin.<init>(TableRowSkin.java:88)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at javafx.scene.control.Control.loadSkinClass(Control.java:1044)
at javafx.scene.control.Control.access$500(Control.java:70)
at javafx.scene.control.Control$12.invalidated(Control.java:972)
at javafx.beans.property.StringPropertyBase.markInvalid(StringPropertyBase.java:127)
at javafx.beans.property.StringPropertyBase.set(StringPropertyBase.java:161)
at com.sun.javafx.css.StyleableStringProperty.set(StyleableStringProperty.java:71)
at javafx.scene.control.Control$12.set(Control.java:964)
at com.sun.javafx.css.StyleableStringProperty.applyStyle(StyleableStringProperty.java:59)
at com.sun.javafx.css.StyleableStringProperty.applyStyle(StyleableStringProperty.java:31)
at com.sun.javafx.css.StyleableProperty.set(StyleableProperty.java:70)
at com.sun.javafx.css.StyleHelper.transitionToState(StyleHelper.java:900)
at javafx.scene.Node.impl_processCSS(Node.java:7419)
at javafx.scene.Parent.impl_processCSS(Parent.java:1146)
at javafx.scene.control.Control.impl_processCSS(Control.java:1154)
at com.sun.javafx.scene.control.skin.VirtualFlow.setCellIndex(VirtualFlow.java:1598)
at com.sun.javafx.scene.control.skin.VirtualFlow.getCell(VirtualFlow.java:1500)
at com.sun.javafx.scene.control.skin.VirtualFlow.getCellLength(VirtualFlow.java:1523)
at com.sun.javafx.scene.control.skin.VirtualFlow$3.call(VirtualFlow.java:478)
at com.sun.javafx.scene.control.skin.VirtualFlow$3.call(VirtualFlow.java:476)
at com.sun.javafx.scene.control.skin.PositionMapper.computeViewportOffset(PositionMapper.java:143)
at com.sun.javafx.scene.control.skin.VirtualFlow.layoutChildren(VirtualFlow.java:1001)
at javafx.scene.Parent.layout(Parent.java:1018)
at javafx.scene.Parent.layout(Parent.java:1028)
at javafx.scene.Parent.layout(Parent.java:1028)
at javafx.scene.Parent.layout(Parent.java:1028)
at javafx.scene.Scene.layoutDirtyRoots(Scene.java:516)
at javafx.scene.Scene.doLayoutPass(Scene.java:487)
at javafx.scene.Scene.preferredSize(Scene.java:1489)
at javafx.scene.Scene.impl_preferredSize(Scene.java:1516)
at javafx.stage.Window$9.invalidated(Window.java:716)
at javafx.beans.property.BooleanPropertyBase.markInvalid(BooleanPropertyBase.java:127)
at javafx.beans.property.BooleanPropertyBase.set(BooleanPropertyBase.java:161)
at javafx.stage.Window.setShowing(Window.java:779)
at javafx.stage.Window.show(Window.java:794)
at javafx.stage.Stage.show(Stage.java:229)
at mytime.MyTime.start(MyTime.java:28)
at com.sun.javafx.application.LauncherImpl$5.run(LauncherImpl.java:319)
at com.sun.javafx.application.PlatformImpl$5.run(PlatformImpl.java:216)
at com.sun.javafx.application.PlatformImpl$4$1.run(PlatformImpl.java:179)
at com.sun.javafx.application.PlatformImpl$4$1.run(PlatformImpl.java:176)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl$4.run(PlatformImpl.java:176)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:76)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.access$100(WinApplication.java:17)
at com.sun.glass.ui.win.WinApplication$3$1.run(WinApplication.java:67)
at java.lang.Thread.run(Thread.java:744)
这一直重复，直到我停止程序。 以下是相关代码：
public class ActivityLogEntry {
private final SimpleStringProperty activityName = new SimpleStringProperty();
private final SimpleStringProperty start_time = new SimpleStringProperty();
private SimpleStringProperty duration = new SimpleStringProperty();
private SimpleStringProperty comment = new SimpleStringProperty();
public ActivityLogEntry(String activityName, String start_time, String duration, String comment) {
this.activityName.set(activityName);
this.start_time.set(start_time);
this.duration.set(duration);
this.comment.set(comment);
}
public String getActivityName() {
return activityName.get();
}
public void setActivityName(String ActivityName) {
this.activityName.set(ActivityName);
}
public String getStart_time() {
return start_time.get();
}
public void setStart_time(String start_time) {
this.start_time.set(start_time);
}
public String getDuration() {
return duration.get();
}
public void setDuration(String duration) {
this.duration.set(duration);
}
public String getComment() {
return comment.get();
}
public void setComment(String comment) {
this.comment.set(comment);
}
}
public class FXMLDocumentController implements Initializable {
private Label label;
@FXML
private ComboBox SelectActivity;
@FXML
private TextArea ActivityCommentEntry;
@FXML
private TableView<ActivityLogEntry> ActivityTable;
@FXML
private TableColumn<ActivityLogEntry,String> ActivityDuration;
@FXML
private TableColumn<ActivityLogEntry,String> ActivityName;
@FXML
private TableColumn<ActivityLogEntry,String> ActivityStartTime;
@FXML
private TableColumn<ActivityLogEntry,String> ActivityComment;
private final ObservableList<ActivityLogEntry> ActivityLog = FXCollections.observableArrayList(
new ActivityLogEntry("10:00", "Get locale","00:15", "no comment"),
new ActivityLogEntry("10:15", "Get Parental","00:30", "boring comment"),
new ActivityLogEntry("10:30", "e-mail","00:20", "no comment")
);
private void handleButtonAction(ActionEvent event) {
System.out.println("You clicked me!");
label.setText("Hello World!");
}
@Override
public void initialize(URL url, ResourceBundle rb) {
// Gwt Activities and ener into the Table
loadActivities();
ActivityDuration.setCellValueFactory(
new PropertyValueFactory<ActivityLogEntry,String>("duration")
);
ActivityName.setCellValueFactory(
new PropertyValueFactory<ActivityLogEntry,String>("activityName")
);
ActivityStartTime.setCellValueFactory(
new PropertyValueFactory<ActivityLogEntry,String>("start_time")
);
ActivityComment.setCellValueFactory(
new PropertyValueFactory<ActivityLogEntry,String>("comment")
);
// ActivityLog.add(new ActivityLogEntry("10:00", "Get locale","00:15", "no comment"));
// ActivityLog.add(new ActivityLogEntry("10:15", "Get Parental","00:30", "boring comment"));
// ActivityLog.add(new ActivityLogEntry("10:30", "e-mail","00:20", "no comment"));
ActivityTable.setItems(ActivityLog);
ActivityTable.getColumns().addAll(ActivityStartTime, ActivityName, ActivityDuration,ActivityComment);
}
@FXML
private void SelectActivityAction(ActionEvent event) {
}
private void loadActivities() {
ActivityType.LoadActivities();
}
}
答案 0 :(得分：2)
com.sun.javafx.scene.control.skin.TableRowSkin]' for control TableRow[id=null, styleClass=cell indexed-cell table-row-cell] java.lang.IllegalArgumentException: **Children: duplicate children added:** parent = TableRowSkin[id=null, styleClass=cell indexed-cell table-row-cell] at
通常，当您尝试将已经存在的组件添加到组件中时会发生此错误。
检查您的代码以确保不会发生这种情况（即：添加两次相同的对象）。