Thanks for the response... The rezise didn't do it, but doing a custom
model does, so, that's the way I will follow. You have been most helpful!
Again, Thanks!
On Wed, 12 Sep 2001, Greg Munt wrote:
> Look at the source code for JTable:
>
> public JTable(final Vector rowData, final Vector columnNames) {
> this(new AbstractTableModel() {
> public String getColumnName(int column) { return
> columnNames.elementAt(column).toString(); }
> public int getRowCount() { return rowData.size(); }
> public int getColumnCount() { return columnNames.size(); }
> public Object getValueAt(int row, int column) {
> return ((Vector)rowData.elementAt(row)).elementAt(column);
> }
> public boolean isCellEditable(int row, int column) { return
> true; }
> public void setValueAt(Object value, int row, int column) {
> ((Vector)rowData.elementAt(row)).setElementAt(value,
> column);
> fireTableCellUpdated(row, column);
> }
> });
> }
>
> In the code where 'nothing happens', try resizing the window. If the data
> appears, it is because the table is not being told that its model's data is
> changed. (The constructor you are using creates a model for you, based on
> the values you supply it.)
>
> I would always use a custom table model. Typically this would extend
> DefaultTableModel. I tend to have an object for each row, with data members
> for each column. So to change data, I have some method which alters the
> contents of the model, then calls a fire* method (defined in
> AbstractTableModel).
>
> I think the reason it works when you add an already-populated table to a gui
> container is that you arent changing the contents of a table already
> displayed. (This requires an event to be fired by the model, to tell the
> table to repaint itself.) Resize your window, and check this.
>
> -----Original Message-----
> From: Alexander Wallace <[EMAIL PROTECTED]>
> To: Greg Munt <[EMAIL PROTECTED]>
> Cc: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
> Date: Wednesday, September 12, 2001 04:35
> Subject: Re: Setting the contents of a JTable
>
>
> >Wow! that was fast! Thanks... So I guess that instead of using the
> >constructor I'm using I need to creat the model first and then use the
> >setModel... Or is the model being created but not refreshed?
> >
> >Thanks again!
> >
> >On Wed, 12 Sep 2001, Greg Munt wrote:
> >
> >> To change the data in an existing table, you need to reassign its model
> >> (with JTable.setModel), or call some method on the object returned by
> >> JTable.getModel().
> >>
> >> -----Original Message-----
> >> From: Alexander Wallace <[EMAIL PROTECTED]>
> >> To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
> >> Date: Wednesday, September 12, 2001 04:24
> >> Subject: Setting the contents of a JTable
> >>
> >>
> >> >Hi there! I'm new to the list, and to java... I'm trying to fill up a
> >> >JTable with the result of an SQL Query...
> >> >
> >> >I create all the Swing components at the beginning of the program, in
> the
> >> >constructor, and I think this may be where the problem is...
> >> >
> >> >I'm trying to use the JTable(Vector data, Vector columns) constructor to
> >> >fill up the Jtable after I put all the right information from an
> database
> >> >table in the vectors, using
> >> >
> >> >jtblMyTable = new JTable(data, columns);
> >> >
> >> >And nothing shows up...
> >> >
> >> >If I follow some tutorials that create an instance of JTable using the
> >> >same constructors or the (object data, object columns) constructor and
> >> >after that add the JTable to the JFrame or whatever container, it
> works...
> >> >
> >> >But how can I add the data to an already existing JTable??? Just like
> you
> >> >do with other components like JText, JTextArea, etc...
> >> >
> >> >I hope I was clear... Thanks in advance for any help!
> >> >
> >> >_______________________________________________
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> >>
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> >>
> >
> >_______________________________________________
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>
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