Jtable cells

[ben riches]

Hello All,
How can I get every cell within my JTable to have the two combo boxes that are in the code below to display what currently dispaly.
Thanks
Ben

import java.awt.*;
 import java.awt.event.*;
 import javax.swing.*;
 import java.sql.*;
 public class ComboBoxDemo extends JPanel {
   static Connection conn2;
   DatabaseMetaData DMD;
   JComboBox group = new JComboBox();
    JComboBox groupList = new JComboBox();
    public ComboBoxDemo()  {
try  { 

     // Load the database driver
   Class.forName( "sun.jdbc.odbc.JdbcOdbcDriver" ) ;
    conn2 = DriverManager.getConnection( "jdbc :-o	 dbc :-P	 ro") ;
   DMD=conn2 .getMetaData();
   ResultSet rs=DMD.getTables(null,null,null,new String[]{"TABLE"});
   while(rs.next()) {

group.addItem((String)rs.getString(3));

   }
   rs.close() ;

 } catch (SQLException se ) {
   System.out.println( "SQL Exception: " + se ) ;
 } catch (Exception e ) {
   System.out.println( e ) ;
 }

group.addActionListener(new ActionListener()  {
   public void actionPerformed(ActionEvent e)  {
String tbl = (String)group.getSelectedItem();
 try {
      Statement st=conn2.createStatement();
    st.execute("SELECT * FROM "+tbl+" WHERE 1=0");
    ResultSet rs=st.getResultSet();
    ResultSetMetaData md=rs.getMetaData();
    groupList.removeAllItems();
   for (int i=1;i<=md.getColumnCount();i++) {
groupList.addItem(md.getColumnName(i));
    }
   st.close() ;
 } catch (SQLException se ) {
   System.out.println( "SQL Exception: " + se ) ;
 } catch (Exception ex ) {
   System.out.println( ex ) ;
 }
      }
});
 // Layout the demo
setLayout(new BorderLayout());
 add(group, BorderLayout.NORTH);
 add(groupList, BorderLayout.SOUTH);
 setBorder(BorderFactory.createEmptyBorder(200,20,20,20));
    }
   public static void main(String s[])  {
JFrame frame = new JFrame("ComboBoxDemo");
 frame.addWindowListener(new WindowAdapter()  {
   public void windowClosing(WindowEvent e)  {
try { 
     conn2.close() ;
 } catch (Throwable t) {
}
System.exit(0);
   }
});
 frame.setContentPane(new ComboBoxDemo());
 frame.pack(); frame.setVisible(true);
    }
}

[Nathan Pruett]

You would just need to make a TableCellRenderer using the panel holding the two comboboxes ( and a TableCellEditor, too... since you obviously expect users to select values from the comboboxes and change the cell's value). However, why would one cell hold two values? Why not use separate columns to hold each set of data?

[ben riches]

Originally posted by Nathan Pruett:
You would just need to make a TableCellRenderer using the panel holding the two comboboxes ( and a TableCellEditor, too... since you obviously expect users to select values from the comboboxes and change the cell's value). However, why would one cell hold two values? Why not use separate columns to hold each set of data?

I have the TableCellRenderer class but how would I do the suggested above.
Also I do want to coulmns the first column would get the Table names from the DataBase the second column gets the colum names from that table the user selected in the column.
Coould you helo me construct my code for the table cell renderer?
what I have at the moment

import javax.swing.*;
import java.awt.event.*;
import java.awt.Color;
import java.awt.Component;
import java.awt.Font;
import javax.swing.BorderFactory;
import javax.swing.JTable;
import javax.swing.border.Border;
import javax.swing.table.DefaultTableCellRenderer;
class MyTableCellRenderer extends DefaultTableCellRenderer   {
                private final static Border FOCUS_BORDER = BorderFactory.createLineBorder(Color.black);
        private final static Font SELECTED_FONT = new Font("Dialog", Font.BOLD, 12);
        private final static Font UNSELECTED_FONT = new Font("Dialog", Font.BOLD, 12);
JComboBox comp = new JComboBox();
                public MyTableCellRenderer(){
            setOpaque(true);
        }
                public Component getTableCellRendererComponent(
        JTable table,
        Object value,
        boolean isSelected,
        boolean isFocused,
        int row,
        int column){



            setText(value == null ? "" : value.toString());
                        if (column == 0)
                 setHorizontalAlignment(LEFT);
                        if (isSelected) {
                setBackground(table.getSelectionBackground());
                setForeground(table.getSelectionForeground());
                setFont(SELECTED_FONT);
            } else {
                setBackground(table.getBackground());
                 setForeground(table.getForeground());
                 setFont(UNSELECTED_FONT);
            }
                        setBorder( isFocused ? FOCUS_BORDER : DefaultTableCellRenderer.noFocusBorder );
            return this;
        }
          
}