使用Scenebuilder我创建了一个TableView,并从本地数据库中插入了几个项目。这些项目是我创建的类症状的类型。
package javafxapplication4;
import javafx.scene.control.Button;
public class Symptom {
private String name,category,symptomId;
private Button symptom;
public Symptom(String name,String category,String symptomId){
this.name = name;
this.category = category;
this.symptomId = symptomId;
this.symptom = new Button("Select Symptom");
//setGraphic(add_symptom);
}
public String getName(){
return this.name;
}
public String getCategory(){
return this.category;
}
public void setName(String name){
this.name = name;
}
public void setCategory(String category){
this.category = category;
}
public void setSymptom(Button button){
symptom = button;
}
public Button getSymptom(){
return symptom;
}
public void setSymptomId(String symptomId){
this.symptomId = symptomId;
}
public String getSymptomId(){
return this.symptomId;
}
}
我已经为TableView提供了3列。名称,类别和操作列,其中症状按钮显示为执行特定操作。
这是我的FXML控制器。
package javafxapplication4;
import java.net.URL;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import java.util.ResourceBundle;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.fxml.Initializable;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.TableCell;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableRow;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.input.MouseEvent;
import javafx.stage.Stage;
public class Symptom_DataController implements Initializable {
/**
* Initializes the controller class.
*/
@FXML
private TableView<Symptom> symptomsTable;
@FXML
private TableColumn<Symptom,String> nameColumn;
@FXML
private TableColumn<Symptom,String> categoryColumn;
@FXML
private TableColumn<Symptom,String> actionColumn;
@FXML
private Button cancel;
@FXML
private Button diagnose;
public LoginModel loginModelSymptomsTable = new LoginModel();
@FXML
private void cancelAction(ActionEvent e) throws Exception{
Stage stage;
Scene scene;
Parent root;
if ( e.getSource() == cancel ) {
stage = (Stage) cancel.getScene().getWindow();
root = FXMLLoader.load(getClass().getResource("Menu.fxml"));
scene = new Scene(root);
stage.setX(0);
stage.setY(0);
stage.setMinWidth(800);
stage.setMinHeight(600);
stage.setWidth(1024);
stage.setHeight(768);
stage.setScene(scene);
stage.show();
}
}
@Override
public void initialize(URL url, ResourceBundle rb) {
nameColumn.setCellValueFactory(new PropertyValueFactory<>("Name"));
categoryColumn.setCellValueFactory(new PropertyValueFactory<>("Category"));
actionColumn.setCellValueFactory(new PropertyValueFactory<Symptom,String>("symptom"));
symptomsTable.setItems(loginModelSymptomsTable.selectSymptomValue());
}
}
使用ObservableList
我填写TableView。现在我想根据它放在TableView中的行为每个按钮创建一个动作。只要我在TableView中选择了一行(因为这使我能够访问Symptom对象),我就可以对Button执行操作。如何通过单击按钮而不选择行来执行按钮操作?
答案 0 :(得分:0)
该按钮不应该是模型类Symptom
的一部分:相反,您应该创建一个显示按钮的TableCell
。
所以表设置应该是这样的:
@FXML
private TableView<Symptom> symptomsTable;
@FXML
private TableColumn<Symptom,String> nameColumn;
@FXML
private TableColumn<Symptom,String> categoryColumn;
// value for the action column is just going to be the entire symptom,
// so the type of the column is TableColumn<Symptom, Symptom>
@FXML
private TableColumn<Symptom,Symptom> actionColumn;
@Override
public void initialize(URL url, ResourceBundle rb) {
nameColumn.setCellValueFactory(new PropertyValueFactory<>("name"));
categoryColumn.setCellValueFactory(new PropertyValueFactory<>("category"));
// just provide the entire row as the value for cells in the actionColumn:
actionColumn.setCellValueFactory(cellData -> new SimpleObjectProperty<>(cellData.getValue()));
// cell factory which provides cell which display a button:
actionColumn.setCellFactory(column -> new TableCell<Symptom, Symptom>() {
private final Button button = new Button("Select Symptom");
{
button.setOnAction(e -> {
Symptom symptom = getItem();
// do whatever you need with symptom..
});
}
@Override
protected void updateItem(Symptom item, boolean empty) {
super.updateItem(item, empty);
if (empty) {
setGraphic(null);
} else {
setGraphic(button);
}
}
});
symptomsTable.setItems(loginModelSymptomsTable.selectSymptomValue());
}
然后只需从Symptom
类中完全删除该按钮。