File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
The moose likes Swing / AWT / SWT and the fly likes Updating JTable data sources Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of Java Interview Guide this week in the Jobs Discussion forum!
JavaRanch » Java Forums » Java » Swing / AWT / SWT
Bookmark "Updating JTable data sources" Watch "Updating JTable data sources" New topic

Updating JTable data sources

Aran Winters

Joined: Nov 23, 2003
Posts: 11
This is my first post - if this question is better suited to the intermediate forum, I apologize and will take it there.
I'm having difficulty getting my table to refresh its data model and itself (appearance wise).
I'm using a DefaultTableModel which is constructed with 2 Vectors.
1 is the data Vector, the other for the column headings.
To begin, I start my application with an empty data Vector, so the
table is displayed as empty - fine no problems.
Next I have a button which adds an entry to the data Vector, and also
generates an event for the table.
To construct the event (TableModelEvent), I pass it my table model.
Then I have used both newRowsAdded() and newDataAvailable() to deliver
the event.
I do have a TableModelListener, and the gist of what is does is an
addRow() where I pass it the new row data.
Here's the problematic behaviour - When I use the GUI to update the
table, it enters the 1 row of data over and over again (maybe 32k times).
I would appreciate any insights, or feedback. Thanks.
Tobias Hess
Ranch Hand

Joined: Apr 06, 2004
Posts: 55
You have created a loop. Post some code, please.
Dirk Schreckmann

Joined: Dec 10, 2001
Posts: 7023
Moving this to the Swing / JFC / AWT forum...

[How To Ask Good Questions] [JavaRanch FAQ Wiki] [JavaRanch Radio]
Aran Winters

Joined: Nov 23, 2003
Posts: 11
Here's my problem code:

So that's it (of course I've only posted some blocks).
I have since found a workaround by putting the addRow()
call into the JButton listener, but I was hoping someone
might explain how I had created a loop through this code.
I agree. Here's the link:
subject: Updating JTable data sources
It's not a secret anymore!