Question

我正在开发简单的JavaFX应用程序。在我的主视图中，我有Table View。在行选择方法中调用selectedEmployeeDetails（）。它填充标签，显示员工的详细信息（姓名，姓名等）。当我启动我的应用程序并选择第一行（仅第一行）时，没有任何事情发生。当我选择secound行时一切都很好。然后当我再次选择第一行时，每个工作正常。这是我在主视图控制器的初始化方法中的代码。

@FXML
private void initialize() {

      dialog.setMaximized();
      dialog.setTitle("Test");

      this.employeeModel.loadData();
      employees = this.employeeModel.getEmployees();
      employeeTableView.setItems(employees); 

      this.employeeFirstName.setCellValueFactory(
                    new PropertyValueFactory<Employee, String>("name"));
      this.employeeFirstName.setCellFactory(TextFieldTableCell.forTableColumn());

      this.employeeLastName.setCellValueFactory(
                   new PropertyValueFactory<Employee, String>("lastname"));
      this.employeeLastName.setCellFactory(TextFieldTableCell.forTableColumn());

      this.employeeFatherClmn.setCellValueFactory(
                   new PropertyValueFactory<Employee, String>("fathersName"));
      this.employeeFatherClmn.setCellFactory(TextFieldTableCell.forTableColumn());

      this.employeeJmbgClmn.setCellValueFactory(
                   new PropertyValueFactory<Employee, String>("jmbg"));
      this.employeeJmbgClmn.setCellFactory(TextFieldTableCell.forTableColumn());

      this.employeeContractClmn.setCellValueFactory(
                   new PropertyValueFactory<Employee, String>("contractType"));
      this.employeeContractClmn.setCellFactory(TextFieldTableCell.forTableColumn());

      this.employeePositionClmn.setCellValueFactory(
                   new PropertyValueFactory<Employee, String>("position"));
      this.employeePositionClmn.setCellFactory(TextFieldTableCell.forTableColumn());

      this.employeeStatusClmn.setCellValueFactory(
                   new PropertyValueFactory<Employee, String>("status"));
      this.employeeStatusClmn.setCellFactory(TextFieldTableCell.forTableColumn());

      //employeeTableView.getColumns().addAll(employeeFirstName, employeeLastName);


      selectedEmployeeDetails(null);

      //Add change listener
      employeeTableView.getSelectionModel().selectedItemProperty().addListener((observableValue, oldValue, newValue) -> {
             //Check whether item is selected and set value of selected item to Label
              if (employeeTableView.getSelectionModel().getSelectedItem() != null) {

                    selectedEmployeeDetails(newValue);
                     System.out.println(employeeTableView.getSelectionModel().getSelectedIndex());
              }
              else
              {
                 System.out.println("EROR");
              }

     });

}

有人可以帮我看看我的第一行不会在第一次选择时触发selectedEmployeeDetails（）方法的主要原因是什么。

修改

private void selectedEmployeeDetails(Employee employee)
    {

        if(employee != null)
        {
            this.employeeDetailLastname.setText(employee.getLastname());
            this.emloyeeDetailFathersName.setText(employee.getFathersName());
            this.employeeDetailName.setText(employee.getName());
            this.emloyeeDetailJmbg.setText(employee.getJmbg());
            this.emloyeeDetailPosition.setText(employee.getPosition());
            this.employeeDetailContractType.setText(employee.getContractType());
            this.employeeDetailStatus.setText(employee.getStatus());

        }

        else
        {
            this.employeeDetailLastname.setText("");
            this.emloyeeDetailFathersName.setText("");
            this.employeeDetailName.setText("");
            this.emloyeeDetailJmbg.setText("");
            this.emloyeeDetailPosition.setText("");
            this.employeeDetailContractType.setText("");
            this.employeeDetailStatus.setText("");

        }
    }

Answer 1

将项目添加到表格时，会立即选择第一个项目。这是在您使用选择模型的所选项属性注册侦听器之前发生的，因此不会为该初始选择调用侦听器的方法。

移动线

  this.employeeModel.loadData();
  employees = this.employeeModel.getEmployees();
  employeeTableView.setItems(employees);

在使用所选项目注册侦听器之后，

到initialize()方法的末尾。

JavaFX和表视图 - 第一次选择不起作用

1 个答案: