我已经来过一段时间了，感觉就像快到了，
我试图在单击按钮时将TextFields添加到JPanel，Jpanel可能已经或可能已经没有JTextFields。
目前，新的JTextFields出现了，但仅以线条形式显示，如果已经有JTextField，则将它们绘制在它们上面。
我的项目即将结束，非常感谢您的帮助。
public class CDPopup extends JPanel implements ActionListener {
private JLabel artist, songName, songLength, songNumber;
private JTextField artistTBox;
private JButton addSong, addAlbum, update;
private DigiProduct p;
private Border space = (Border) BorderFactory.createEmptyBorder(10, 10, 10,10);
private Border line = (Border) BorderFactory.createLineBorder(Color.black);
private Border border = BorderFactory.createCompoundBorder(space, line);
private Font font = new Font("Verdana", Font.PLAIN, 20);
private GridBagConstraints gc = new GridBagConstraints();
private ProdDialog prodDialog;
private JTextField song9, song10, song11, song12, song13, song8, song7, song6, song5, song4, song1, song2, song3,
length9, length10, length11, length12, length13, length8, length7, length6, length5, length4, length1, length2,
length3;
JTextField[] digiProdDetailBx = { song1 = new JTextField(),
song2 = new JTextField(), song3 = new JTextField(),
song4 = new JTextField(), song5 = new JTextField(),
song6 = new JTextField(), song7 = new JTextField(),
song8 = new JTextField(), song9 = new JTextField(),
song10 = new JTextField(), song11 = new JTextField(),
song12 = new JTextField(), song13 = new JTextField()};
JTextField[] digiProdDetailBx2 = { length1 = new JTextField(),
length2 = new JTextField(), length3 = new JTextField(),
length4 = new JTextField(), length5 = new JTextField(),
length6 = new JTextField(), length7 = new JTextField(),
length8 = new JTextField(), length9 = new JTextField(),
length10 = new JTextField(), length11 = new JTextField(),
length12 = new JTextField(), length13 = new JTextField()};
private JLabel[] digiProdDetailLb;
private DigiProductList digiProductList;
private ArrayList<Song> alist = new ArrayList<Song>();
public CDPopup(DigiProduct p, DigiProductList digiProductList, ProdDialog prodDialog) {
this.prodDialog = prodDialog;
this.digiProductList = digiProductList;
this.setName("cd");
this.p = p;
this.setLayout(new BorderLayout());
if(p.getAlbum().getSongList().size() >= 15)
{
this.setSize(690, 600);
}
else if(p.getAlbum().getSongList().size() < 11)
{
this.setSize(690, 410);
}
else
{
this.setSize(690, 490);
}
JPanel top = new JPanel(new GridBagLayout());
this.setBorder(new TitledBorder("CD"));
addFields( p.getAlbum().getSongList().size(), false);
JPanel detailsPanel = new JPanel(new BorderLayout());
detailsPanel.setPreferredSize(new Dimension(240, 80));
this.add(detailsPanel, BorderLayout.WEST);
JPanel details = new JPanel(new GridBagLayout());
details.setBorder(border);
details.setPreferredSize(new Dimension(150, 130));
detailsPanel.add(details, BorderLayout.NORTH);
JPanel spacer = new JPanel();
spacer.setPreferredSize(new Dimension(200, 100));
detailsPanel.add(spacer, BorderLayout.SOUTH);
gc.gridx = 0;
gc.gridy = 0;
artist = new JLabel(" Artist");
details.add(artist, gc);
gc.gridx = 0;
gc.gridy = 1;
artistTBox = new JTextField(10);
details.add(artistTBox, gc);
JPanel bottom = new JPanel(new FlowLayout());
this.add(bottom, BorderLayout.SOUTH);
addSong = new JButton("Add Song");
addSong.setPreferredSize(new Dimension(120, 30));
addSong.addActionListener(this);
bottom.add(addSong);
update = new JButton("Update");
update.setPreferredSize(new Dimension(120, 30));
update.addActionListener(this);
bottom.add(update);
addAlbum = new JButton("Add Album");
addAlbum.setPreferredSize(new Dimension(120, 30));
addAlbum.addActionListener(this);
bottom.add(addAlbum);
this.setVisible(true);
}
public void addFields(int size, boolean newSong)
{
JPanel songs = new JPanel(new GridBagLayout());
songs.setPreferredSize(new Dimension(380, 200));
songs.setBorder(border);
songNumber = new JLabel(" No.");
songName = new JLabel("Song");
songLength = new JLabel("Length");
JLabel[] digiProdDetailLb = new JLabel[size];
if(newSong == true)
{
JTextField[] digiProdDetailBx = new JTextField[size];
JTextField[] digiProdDetailBx2 = new JTextField[size];
}
for (int i = 0; i < size; i++) {
int num = i +1;
if (i == 0) {
gc.gridx = 0;
gc.gridy = 0;
gc.anchor = GridBagConstraints.WEST;
songs.add(songNumber, gc);
}
gc.gridx = 0;
gc.gridy = i + 1;
gc.gridwidth = 1;
gc.gridheight = 1;
gc.weighty = 0.0;
gc.weightx = 2.0;
gc.anchor = GridBagConstraints.WEST;
digiProdDetailLb[i] = new JLabel(" " + num);
digiProdDetailLb[i].setFont(font);
songs.add(digiProdDetailLb[i], gc);
if (i == 0) {
gc.gridx = 1;
gc.gridy = 0;
songs.add(songName, gc);
}
gc.gridx = 1;
gc.gridy = i + 1;
gc.gridwidth = 1;
gc.gridheight = 1;
gc.weighty = 0.0;
gc.weightx = 2.0;
gc.gridwidth = 2;
if(newSong == true)
{
digiProdDetailBx[i] = new JTextField(100);
}
else
{
digiProdDetailBx[i] = new JTextField(p.getAlbum().getSongList().get(i).getSong_name());
}
digiProdDetailBx[i].setPreferredSize(new Dimension(250, 20));
songs.add(digiProdDetailBx[i], gc);
if (i == 0) {
gc.gridx = 3;
gc.gridy = 0;
songs.add(songLength, gc);
}
gc.gridx = 3;
gc.gridy = i + 1;
gc.gridwidth = 1;
gc.gridheight = 1;
gc.weighty = 0.0;
gc.weightx = 2.0;
gc.gridwidth = 2;
if(newSong == true)
{
digiProdDetailBx2[i] = new JTextField(100);
}
else
{
digiProdDetailBx2[i] = new JTextField(p.getAlbum().getSongList().get(i).getSong_length());
}
digiProdDetailBx2[i].setPreferredSize(new Dimension(50, 20));
songs.add(digiProdDetailBx2[i], gc);
}
;
this.add(songs, BorderLayout.EAST);
}
public void updateEmployee() {
for(int i = 0 ; i < p.getAlbum().getSongList().size(); i++)
{
Song s = new Song(p.getProd_id(),p.getAlbum().getSongList().get(i).getProd_id(),
digiProdDetailBx[i].getText(), digiProdDetailBx2[i].getText());
alist.add(s);
}
CD c = new CD(alist);
DigiProduct cd = new DigiProduct(p.getProd_id(),
p.getProd_type(),
p.getDigi_id(),
p.getCd_id(),
p.getArtist_id(),
p.getAlbumName(),
p.getCostPrice(),
p.getSellPrice(),
p.getCurrent_stock(),
p.getAge_rating(),
p.getGenre(),
p.getPublisher(),
p.getLength(),
p.getArtist(),
c
);
digiProductList.updateEmployee(cd);
JOptionPane.showMessageDialog(null, "Album " + p.getAlbumName()
+ " Updated");
}
public JTextField[] getDigiProdDetailBx() {
return digiProdDetailBx;
}
public void setDigiProdDetailBx(JTextField[] digiProdDetailBx) {
this.digiProdDetailBx = digiProdDetailBx;
}
public JTextField[] getDigiProdDetailBx2() {
return digiProdDetailBx2;
}
public void setDigiProdDetailBx2(JTextField[] digiProdDetailBx2) {
this.digiProdDetailBx2 = digiProdDetailBx2;
}
public void actionPerformed(ActionEvent e) {
if(e.getSource().equals(update))
{
updateEmployee();
}
else if(e.getSource().equals(addSong))
{
addFields(2, true);
this.revalidate();
this.repaint();
}
else if(e.getSource().equals(addAlbum))
{
prodDialog.addSongs();
}
}
}
最佳答案
文本字段不会以我设置的大小显示
在列数中建议一个大小：
song1 = new JTextField(5)