java - 添加和删除只影响表而不影响列表我应该怎么做才能使其影响列表
问题描述
所以,我在 DocTableController 中添加和删除函数来编辑 GUI 中的表格。我将 ArrayList 从主控制器链接到 DocTableController。当我删除并添加项目时,它似乎只对表格有效,但在我返回主菜单并再次返回 DocTable 场景时列表重新初始化时无效。并且当我再次进入 tableView 时不会改变。
主控制器
public class FXMLdocumentController implements Initializable {
@FXML Label date;
@FXML Label time;
//define static so in memory only 1 list
static ArrayList<Doctor> doctor = new ArrayList<Doctor>();
static int counter = 0;
@Override
public void initialize(URL location, ResourceBundle resources) {
//initialise all the list
if (counter == 0){
doctor.add(new Doctor("518", "Lew Wei Li", "Surgeon", "10PM-3AM", "MBBS,MD","Male",8000 , 88));
doctor.add(new Doctor("101", "Tom Wong", "Obstetrician", "8AM-11AM", "MBBS,MS","Male",10000 ,11));
doctor.add(new Doctor("102", "John Lim", "Physician", "7AM-11AM", "MBBS,MS","Male",7000 ,45));
doctor.add(new Doctor("103", "Amy Chia", "Pediatrician", "6PM-11PM", "MBBS,MD","Female",6000, 8));
doctor.add(new Doctor("104", "Chris Hemsworth", "Neurologist", "6PM-11PM", "BDM", "Female",8000,12));
counter++;
}
//when the program start get the local computer time and date and display
Calendar calendar = Calendar.getInstance();
date.setText("Date: " + calendar.get(Calendar.DATE) + "/" + (calendar.get(Calendar.MONTH) + 1) + "/"
+ calendar.get(Calendar.YEAR));
time.setText("Time: " + calendar.get(Calendar.HOUR) + ":" + calendar.get(Calendar.MINUTE) + ":"
+ calendar.get(Calendar.SECOND));
}
@FXML
public void changeScreenDoc(ActionEvent event) throws IOException {//change to doctor session scene
FXMLLoader loader = new FXMLLoader();
loader.setLocation(getClass().getResource("/Gui/DocTable.fxml"));//get the DocTable gui file
Parent DocParent = loader.load();
Scene DocScene = new Scene(DocParent);
//get the data to link to other controller
DocTablecontroller controller = loader.getController();
controller.setDoc(doctor);
Stage window = (Stage) ((Node) event.getSource()).getScene().getWindow();
window.setScene(DocScene);
window.show();
}
}
可文档化的场景控制器
public class DocTablecontroller implements Initializable {
//configure table
@FXML private TableView<Doctor> Doctable;
@FXML private TableColumn<Doctor, String> Idcol;
@FXML private TableColumn<Doctor, String> Namecol;
@FXML private TableColumn<Doctor, String> Speccol;
@FXML private TableColumn<Doctor, String> Worktimecol;
@FXML private TableColumn<Doctor, String> Quacol;
@FXML private TableColumn<Doctor, Integer> RoomNumbercol;
//Instance variable to create object
@FXML private TextField newId;
@FXML private TextField newName;
@FXML private TextField newSpecialist;
@FXML private TextField newWorktime;
@FXML private TextField newQual;
@FXML private TextField newRnum;
//for alert user usage
Alert a = new Alert(AlertType.WARNING);
//link the data from main controller
public void setDoc(ArrayList<Doctor> doclist)
{
Doctable.getItems().addAll(doclist);
}
@Override
public void initialize(URL location, ResourceBundle resources) {
//setting up the table and tell it where to find the value in the class by ("xx")
Idcol.setCellValueFactory(new PropertyValueFactory<Doctor,String>("id"));
Namecol.setCellValueFactory(new PropertyValueFactory<Doctor,String>("name"));
Speccol.setCellValueFactory(new PropertyValueFactory<Doctor,String>("specialist"));
Worktimecol.setCellValueFactory(new PropertyValueFactory<Doctor,String>("workTime"));
Quacol.setCellValueFactory(new PropertyValueFactory<Doctor,String>("qualification"));
RoomNumbercol.setCellValueFactory(new PropertyValueFactory<Doctor,Integer>("roomNum"));
//Doctable.setItems(Doclist);//injecting the observable list to the table
//set the table cell to be editable
Doctable.setEditable(true);
Idcol.setCellFactory(TextFieldTableCell.forTableColumn());
Namecol.setCellFactory(TextFieldTableCell.forTableColumn());
Speccol.setCellFactory(TextFieldTableCell.forTableColumn());
Worktimecol.setCellFactory(TextFieldTableCell.forTableColumn());
Quacol.setCellFactory(TextFieldTableCell.forTableColumn());
RoomNumbercol.setCellFactory(TextFieldTableCell.forTableColumn(new IntegerStringConverter()));
}
@FXML
public void newDoctor() {//add new data(row) in the table(add button)
Doctor newDoctor = new Doctor();
boolean flag = true;
//format checking
if (!(newDoctor.setId(newId.getText()))){
newId.setText("Wrong format");
flag = false;
}
if (!(newDoctor.setName(newName.getText()))){
newName.setText("Wrong format");
}
if (!(newDoctor.setSpecialist(newSpecialist.getText()))){
newSpecialist.setText("Wrong format");
flag = false;
}
if (!(newDoctor.setWorkTime(newWorktime.getText()))){
newWorktime.setText("Wrong format");
flag = false;
}
if (!(newDoctor.setQualification(newQual.getText()))){
newQual.setText("Wrong format");
flag = false;
}
if (!(newDoctor.setRoomNum(newRnum.getText()))){
newRnum.setText("Wrong format");
flag = false;
}
//if the format all correct allow to add new input else alert user some input format is wrong
if(flag)
{
Doctable.getItems().add(newDoctor);
}
else
{
a.setTitle("Input alert");
a.setContentText("Input format wrong! please check again");
a.showAndWait();
}
}
//edit cell when a cell is double clicked
public void changeCellEvent(CellEditEvent<?, ?> edittedcell)
{
//get the selected doctor data
Doctor docSeleted = Doctable.getSelectionModel().getSelectedItem();
//gone through format checking
if(!(docSeleted.setId(edittedcell.getNewValue().toString())))
{
//alert if pattern not match
a.setTitle("Input alert");
a.setContentText("Input format wrong! please check again");
a.showAndWait();
}
Doctable.refresh();//if no this then the value of edited row will stay as the user input string
}
//delete user selected cell
public void dlt() {
Doctable.getItems().removeAll(Doctable.getSelectionModel().getSelectedItems());
}
@FXML//change scene(main menu button)
public void BackMenu(ActionEvent event) throws IOException {
FXMLLoader loader = new FXMLLoader();
loader.setLocation(getClass().getResource("/Gui/Menu.fxml"));
Parent MenuParent = loader.load();
Scene MenuScene = new Scene(MenuParent);
Stage window = (Stage) ((Node) event.getSource()).getScene().getWindow();
window.setScene(MenuScene);
window.show();
}
}
添加和删除确实会影响 GUI 中的表格,并使用编辑功能编辑当我进入主菜单并返回 DocTable 时它确实保留的单元格我不明白为什么添加和删除不起作用,我猜它会影响表格但不是列表 如何使函数影响列表?
解决方案
当您添加或删除医生时,您使用的ObservableList
是TableView
(而不是ArrayList
)。通过一些更改,它应该可以工作。请试试这个:
将FxmlDocumentController更改ArrayList
为:
ObservableList<Doctor> doctors = FXCollections.observableArrayList();
在DocTableController中,setter 方法可以如下所示:
public void setDoc(ObservableList<Doctor> docList) {
docTable.getItems().setAll(docList);
}
顺便说一句:请查看Java Naming Conventions。;-)
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