Javafx 2 JavaFX2-tableview动态列
有人可以在下面的代码中建议这个问题。我无法填充表中的数据。 这段代码基本上应该添加一列(col1)和一行数据d1。此代码可以添加列,但不能添加数据 控制器-Javafx 2 JavaFX2-tableview动态列,javafx-2,tableview,Javafx 2,Tableview,有人可以在下面的代码中建议这个问题。我无法填充表中的数据。 这段代码基本上应该添加一列(col1)和一行数据d1。此代码可以添加列,但不能添加数据 控制器- import java.util.ArrayList; import java.util.List; import javafx.collections.FXCollections; import javafx.collections.ObservableList; import javafx.fxml.FXML; import java
import java.util.ArrayList;
import java.util.List;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.fxml.FXML;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
public class FXMLTableViewController {
@FXML private TableView tableView;
@FXML
private void initialize() {
List<String> columns = new ArrayList<String>();
columns.add("col1");
TableColumn [] tableColumns = new TableColumn[columns.size()];
int columnIndex = 0;
for(String columName : columns) {
tableColumns[columnIndex++] = new TableColumn(columName);
}
tableView.getColumns().addAll(tableColumns);
ObservableList<ObservableList> csvData = FXCollections.observableArrayList();
ObservableList<String> row = FXCollections.observableArrayList();
row.addAll("d1");
csvData.add(row);
tableView.getItems().add(csvData);
}
}
尝试下面的代码,它将显示与您需要的相同
List<String> columns = new ArrayList<String>();
columns.add("col1");
columns.add("col2");
TableColumn [] tableColumns = new TableColumn[columns.size()];
int columnIndex = 0;
for(int i=0 ; i<columns.size(); i++) {
final int j = i;
TableColumn col = new TableColumn(columns.get(i));
col.setCellValueFactory(new Callback<CellDataFeatures<ObservableList,String>,ObservableValue<String>>(){
public ObservableValue<String> call(CellDataFeatures<ObservableList, String> param) {
return new SimpleStringProperty(param.getValue().get(j).toString());
}
});
tableview.getColumns().addAll(col);
}
ObservableList<String> row = FXCollections.observableArrayList();
ObservableList<String> row1 = FXCollections.observableArrayList();
row.addAll("d1");
row.addAll("d11");
row1.addAll("d2");
row1.addAll("d22");
tableview.getItems().add(row);
tableview.getItems().add(row1);
List columns=new ArrayList();
列。添加(“第1列”);
列。添加(“col2”);
TableColumn[]tableColumns=新TableColumn[columns.size()];
int columnIndex=0;
对于(inti=0;i我相信它会对你有帮助
public class DBClass
{
public Connection getConnection() throws ClassNotFoundException, SQLException
{
Class.forName("com.mysql.jdbc.Driver");
return DriverManager.getConnection("jdbc:mysql://192.168.0.1:3306 /dbname","mysqluser","mysqluserpwd");
}
}
在控制器类中,执行以下操作:
@FXML
void initialize()
{
assert tableview != null : "fx:id=\"tableview\" was not injected: check your FXML file 'UserMaster.fxml'.";
colUserName.setCellValueFactory(
new PropertyValueFactory<Usermaster,String>("userName"));
colPassword.setCellValueFactory(
new PropertyValueFactory<Usermaster,String>("userPassword"));
colUserType.setCellValueFactory(
new PropertyValueFactory<Usermaster,String>("userType"));
colPhoto.setCellValueFactory(
new PropertyValueFactory<Object,ImageView>("userPhoto"));
objDbClass = new DBClass();
try
{
con = objDbClass.getConnection();
buildData();
}
catch(ClassNotFoundException ce)
{
logger.info(ce.toString());
}
catch(SQLException ce)
{
logger.info(ce.toString());
}
}
private ObservableList<Usermaster> data;
public void buildData()
{
data = FXCollections.observableArrayList();
try
{
String SQL = "Select * from usermaster Order By UserName";
ResultSet rs = con.createStatement().executeQuery(SQL);
while(rs.next())
{
Usermaster cm = new Usermaster();
cm.userId.set(rs.getInt("UserId"));
Image img = new Image("tailoring/UserPhoto/User"+cm.getUserId().toString()+".jpg");
ImageView mv = new ImageView();
mv.setImage(img);
mv.setFitWidth(70);
mv.setFitHeight(80);
cm.userPhoto.set(mv);
cm.userName.set(rs.getString("UserName"));
cm.userPassword.set(rs.getString("UserPassword"));
cm.userType.set(rs.getString("UserType"));
data.add(cm);
}
tableview.setItems(data);
}
catch(Exception e)
{
e.printStackTrace();
System.out.println("Error on Building Data");
}
}
我已经测试了这个程序,它运行得非常好。我还尝试在运行时添加列
对于列使用ArrayList做得很好。
您应该对tableColumns执行相同的操作,否则它的列数仍然是固定的
List<String> columns = new ArrayList<String>();
List<TableColumn> tableColumns = new ArrayList<TableColumn>;
如果忘记将数据字段链接到列,则应添加
tableColumns[i].setCellValueFactory("sorry, I have no idea what to write here in your case");
请参阅的“示例12-12将地图数据添加到表中”。Hi Uluk,我正在寻找tableview代码,其中列的数量不是固定的(即,它可以在运行时更改,比如说,基于db查询)。我有一个java对象,它作为固定行(即5行,但列的数量可变)得到编译错误方法get(int)对于类型TreeItem
,未定义。您在哪里定义了colUserName?
public class Usermaster
{
public SimpleIntegerProperty userId = new SimpleIntegerProperty();
public ObjectProperty userPhoto = new SimpleObjectProperty();
public SimpleStringProperty userName = new SimpleStringProperty();
public SimpleStringProperty userPassword = new SimpleStringProperty();
public SimpleStringProperty userType = new SimpleStringProperty();
public SimpleStringProperty encPass = new SimpleStringProperty();
public SimpleStringProperty updt = new SimpleStringProperty();
public SimpleStringProperty uptm = new SimpleStringProperty();
public Integer getUserId() {
return userId.get();
}
public Object getUserPhoto() {
return userPhoto.get();
}
public String getUserName() {
return userName.get();
}
public String getUserPassword() {
return userPassword.get();
}
public String getUserType() {
return userType.get();
}
public String getEncPass() {
return encPass.get();
}
public String getUpdt() {
return updt.get();
}
public String getUptm()
{
return uptm.get();
}
}
List<String> columns = new ArrayList<String>();
List<TableColumn> tableColumns = new ArrayList<TableColumn>;
tableView.getItems().add(csvData);
tableColumns[i].setCellValueFactory("sorry, I have no idea what to write here in your case");