StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POJTable and DefaultTableModel dosen't refresh table data
primarykey
Id
12652593
data
AcceptedAnswerId
12652626
AnswerCount
3
ClosedDate
CommentCount
6
CommunityOwnedDate
CreationDate
2012-09-29T12:10:12.340
FavoriteCount
0
LastActivityDate
2012-09-29T13:59:29.557
LastEditDate
2012-09-29T12:20:47.670
LastEditorUserId
1336646
OwnerUserId
1336646
ParentId
0
PostTypeId
1
Score
0
ViewCount
5694
LastEditorDisplayName
text
Body
I have a problem with updating/refreshing data in table. I am using DefaultTableModel. Here is code so please share your knowledge and advises. Best regards. *EDIT 1: * Original code has a function that was updating table data but that proves wrong because of constructor which is creating over and over new JTable and new JScrollPane. That's why I created new constructor and that bug was repaired. After I implement new constructor, table data still didn't refresh. Next I was try to debug data that constructor received thought other class (passDatatoTable class). After I used function setValueAt() and then System.out.println(getValueAt(i,1)), output was null. And that's it First here is main class that creates gui: <pre><code>import javax.swing.*; public class Glavni { public static void main(String[] args) { // TODO Auto-generated method stub SwingUtilities.invokeLater(new Runnable() { public void run() { gui Scanner = new gui(); Scanner.setVisible(true); } }); } } </code></pre> Second here is Class that send data to gui <pre><code>public class passDatatoTable { public void passData(){ String str1,str2,str3,str4; for (int i =0;i<=10;i++){ str1="Column 1 of row: "+i; str2="Column 2 of row: "+i; str3="Column 3 of row: "+i; str4="Column 4 of row: "+i; gui SendStringsToGUI = new gui(str1, str2, str3, str4); } } } </code></pre> And here is gui class. Button "Add Data" is used to fill data. Here is code: <pre><code>public class gui extends JFrame implements ActionListener { private static final long serialVersionUID = 1L; String[][] data = new String[100][4]; String[] columnNames = new String[]{ "IP", "PC_NAME", "ttl", "db" }; DefaultTableModel model = new DefaultTableModel(data,columnNames); JTable table = new JTable(model); JScrollPane scrollPane = new JScrollPane(table); int i=0; public gui(String IP, String PC_NAME, String ttl, String gw) { //Used this constructor to avoid creating new gui in other classes model.setValueAt(IP, i, 0); model.setValueAt(PC_NAME, i, 1); model.setValueAt(ttl, i, 2); model.setValueAt(gw, i, 3); i++; model.fireTableDataChanged(); table.repaint(); scrollPane.repaint(); } gui(){ JButton addData= new JButton("Add Data"); JButton next = new JButton("next"); JButton prev = new JButton("prev"); addData.addActionListener(this); next.addActionListener(this); prev.addActionListener(this); JPanel panel = new JPanel(new BorderLayout()); JPanel buttonPanel = new JPanel(); buttonPanel.add(addData); buttonPanel.add(prev); buttonPanel.add(next); panel.add(buttonPanel, BorderLayout.SOUTH); panel.add(table.getTableHeader(), BorderLayout.PAGE_START); panel.add(scrollPane, BorderLayout.CENTER); getContentPane().add(panel); } </code></pre> Here is ActionListeners. Buttons next and prev are used for paging and button "Add Data" is used to create variable of class "passDatatoTable" which is used to fill data of table here is code: <pre><code>public void actionPerformed(ActionEvent e) { if ("Add Data".equals(e.getActionCommand())){ passDatatoTable passSomeData = new passDatatoTable(); passSomeData.passData(); } if ("next".equals(e.getActionCommand())) { Rectangle rect = scrollPane.getVisibleRect(); JScrollBar bar = scrollPane.getVerticalScrollBar(); int blockIncr = scrollPane.getViewport().getViewRect().height; bar.setValue(bar.getValue() + blockIncr); scrollPane.scrollRectToVisible(rect); } if ("prev".equals(e.getActionCommand())) { Rectangle rect = scrollPane.getVisibleRect(); JScrollBar bar = scrollPane.getVerticalScrollBar(); int blockIncr = scrollPane.getViewport().getViewRect().height; bar.setValue(bar.getValue() - blockIncr); scrollPane.scrollRectToVisible(rect); } } </code></pre>
Tags
<java><swing><jtable><jscrollpane><defaulttablemodel>
Title
JTable and DefaultTableModel dosen't refresh table data
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USZhiZha
UserOwnerUserId
1. USZhiZha
plurals
PostLinksPostIdRelatedPostId
1. PL
 singulars
 LinkTypeLinkTypeId
 LTLinked
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
2. PO
 singulars
 PostTypePostTypeId
 PTAnswer
3. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 POJTable and DefaultTableModel dosen't refresh table data
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTDownMod
2. VO
 singulars
 PostPostId
 POJTable and DefaultTableModel dosen't refresh table data
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.