Display 2D array in a table, 1 row at a time
I am using a For Loop to read a serial port 40 times and display the values in a table of 40 rows and 5 columns. I auto index the output of the For Loop to build the 2D string array. The problem is that the serial port takes too long to answer and the VI takes about two minutes to display the values in the table because it doesn't do it until the For Loop finish its 40 iterations. Is it possible to display each iteration as it executes? I mean, to pass the value of the 1st iteration to the 1st row of the table and then do the 2nd iteration, pass its value to the 2nd row of the table and so on? Thanks a lot! (Merry Christmas to the ones that celebrate it)
Solved!
Go to Solution.
Hello Farracillo,
Your welcome,
It's pretty cool to have backup if an answer mach correctly for a problem and so
others members don't have to work on , i mean for more complexes questions
and ever even more cool to give/receive kudos to keep up motivation ...
see you for others questions...
@+
Tinnitus
Message Edité par tinnitus le 12-26-2008 09:33 AM
CLAD / Labview 2011, Win Xp
Mission d'une semaine- à plusieurs mois laissez moi un MP...
RP et Midi-pyrénées .Km+++ si possibilité de télétravail
Kudos always accepted / Les petits clicks jaunes sont toujours appréciés
Don't forget to valid a good answer / pensez à valider une réponse correcte
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}Before you make your final decision. What changes would be required for each solution in the following "what if " scenarios:
a) what if, you added a Boolean column to the table
b) what if, you added a second Double column to the table which should be formatted as a currency (ie. 1,234.5 --> $1,234.50).
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super();
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setHorizontalAlignment( SwingConstants.RIGHT );
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if ((value != null) && (value instanceof Number))
value = formatter.format(value);
super.setValue(value);
}Well, here's a partila solution using technique from a link you cited in another thread.
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import javax.swing.table.*;
import java.awt.*;
import java.text.NumberFormat;
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int priceIndex = model.findColumn("Price");
table.getColumnModel().getColumn(priceIndex).setCellRenderer( new EtchedBorderTableCellRenderer(new ColorTableCellRenderer(new CurrencyRenderer(),prov) ));
table.setDefaultRenderer(Object.class,new EtchedBorderTableCellRenderer(renderer));
table.setDefaultRenderer(Double.class,new EtchedBorderTableCellRenderer(doublerenderer));
table.setDefaultRenderer(Boolean.class, new EtchedBorderTableCellRenderer(boolrenderer));
JScrollPane scrollPane = new JScrollPane(table);
getContentPane().add(scrollPane);
class CurrencyRenderer extends DefaultTableCellRenderer {
private NumberFormat formatter;
public CurrencyRenderer() {
super();
formatter = NumberFormat.getCurrencyInstance();
setHorizontalAlignment(SwingConstants.RIGHT);
public void setValue(Object value) {
if ((value != null) && (value instanceof Number)) {
value = formatter.format(value);
super.setValue(value);
public static void main(String[] args) {
DecoratedTablePrepareRenderer frame = new DecoratedTablePrepareRenderer();
frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
class ColorTableCellRenderer implements TableCellRenderer{
protected TableCellRenderer delegate;
protected ColorProvider provider;
public ColorTableCellRenderer(TableCellRenderer delegate, ColorProvider provider) {
this.delegate = delegate;
this.provider = provider;
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
Component c = delegate.getTableCellRendererComponent(table, value,isSelected,hasFocus,row, column);
c.setBackground(provider.getBackgroundColor(row, column));
return c;
class EtchedBorderTableCellRenderer implements TableCellRenderer{
protected TableCellRenderer delegate;
public EtchedBorderTableCellRenderer(TableCellRenderer delegate) {
this.delegate = delegate;
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
JComponent c = (JComponent)delegate.getTableCellRendererComponent(table, value,isSelected,hasFocus,row, column);
JPanel panel = new JPanel(new GridLayout(0,1));
panel.add(c);
panel.setBorder(BorderFactory.createEtchedBorder());
return panel;
class TransactionColorProvider implements ColorProvider {
private int keyIndex = 0;
private Color sellColor = Color.yellow;
private Color buyColor = Color.green;
public TransactionColorProvider() {
keyIndex = model.findColumn("Type");
public Color getBackgroundColor(int row, int column) {
if( model.getValueAt(row,keyIndex).equals("Sell")){
return sellColor;
else {
return buyColor;
public Color getForegroundColor(int row, int column) {
return Color.black;
}Boolean values are problematical since JCheckBox does seem to like borders, using a panel as I did in the Etched renderer seems to work. This solution need a little more work, this is submitted as a prototype
Cheers
DB
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