🚀 go-pugleaf

On Wed, 05 Jul 2000 15:52:32 +0200, sven goetgeluck wrote:

> must create at runtime a table with diffents count of rows,
> is this possible?
> all examples found have fixed rowlength , how can i insert
> a row ..
> I use a jtable with a model
    :
>        final Object[][] data = null;

Since you provide the TableModel, you need to manage the data structures 
that hold the data.  A Java array of arrays is not the best structure to 
use for this.  Instead, try using an ArrayList of ArrayLists, or a Vector 
of Vectors if you are stuck on JDK 1.1, or if your table model needs to 
be synchronized.

>   public void addRow(Object[] rowdata)
>   {
>  fireTableCellUpdated(row, col);
> 
>   }

After adding the row (not before), you will need to fire an event to 
notify listeners that the row has been added.  But fireTableCellUpdated() 
notifies listeners that the value of one cell has changed.  When you add 
a row you should use:

    fireTableRowsInserted( int firstRow, int lastRow )

Take a closer look at AbstractTableModel.  There are 7 different fireXXXX 
methods there for notifying listeners about different changes.  If you 
use the wrong one, your code may not behave properly or it may run a lot 
slower than need be.

-- 
John P. McGrath
<JPMcGrath@fast.net>
<jpm@nscs.fast.net>