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Thread: Help with JList
- 07-09-2007, 07:25 PM #1
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Help with JList
Hi, Could someone help, I have a TextArea that a user enter text then submits the text to the database, i have a JList that retrieves the text and displays it. the problem is the list does not update immediately i have tried repainting the list but it seems not to work.
the JList code on post-creation
ThanksJava Code://code listModelMsg = new DefaultListModel(); String msgList = "SELECT msg_text FROM msg_board ORDER BY msg_id ASC"; try { this.resultSet = this.connection.executeQuery(msgList); while(this.resultSet.next()) { listModelMsg.addElement(this.resultSet.getString("msg_text")); } jList12.repaint(); jList12.setModel(listModelMsg); } catch(SQLException e) { e.printStackTrace(System.err); }
Albert:rolleyes:
- 07-13-2007, 03:42 PM #2
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I'll be honest that I find that when I was doing heavy GUI work in my undergrad I came up with this problem frequently.
And to be honest I can't remember how I fixed it, however I did find a helpful link on how repaint works:
http://mindprod.com/jgloss/repaint.html
My only suggestion is to try and add validate() before the repaint.
Or put an int parameter in there. Besides that I'm unsure and if there is a more stable solution I'd like to hear it as well.
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