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Thread: How to select default value of jRadioButton inside jTable

  1. #1
    Junior Member tomrey's Avatar
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    Default How to select default value of jRadioButton inside jTable

    Hi experts.

    I am new in java but I've spent time learning. I created a jTable with jRadioButton inside using JDBC, my code:

            MyObjectManager manager = new MyObjectManager();
            try
            {
                Connection conn = dbConnection();
                PreparedStatement pre = conn.prepareStatement("Select Clave_Familia as Cve, Descripcion_Familia as Familia from famMat_Familias order by Clave_Familia");
                ResultSet rs = pre.executeQuery();
                while(rs.next())
                 {
                        object = new MyObject(rs.getString(1)+" "+rs.getString(2));
                        manager.addObject(object);
                 }
            }
            catch(SQLException e )        {
                    System.out.print(e);
            }
            table = new JTable(new MyTableModel(manager));
            table.setRowHeight(20);
            TableColumn column = table.getColumnModel().getColumn(1);
            column.setCellEditor(new RadioButtonCellEditorRenderer());
            column.setCellRenderer(new RadioButtonCellEditorRenderer());
     
            table.getColumnModel().getColumn(0).setResizable(false);
            table.getColumnModel().getColumn(0).setPreferredWidth(480);
     
     
            // Asignar gFam del radio button seleccionado
            if (Global.gFam != null)
                {
                    nTotFilas = table.getRowCount()-1;
                    sFam = Global.gFam.toString();
                    for(nFila=0; nFila<nTotFilas+1 ; nFila++)
                    {
                        sCveNew = table.getValueAt(nFila, 0).toString();
                        if(sCveNew.substring(0, 2).equals(sFam.substring(0, 2)))
                        {
                            // System.out.println("I found it");
                            // Check radio button of table in column one
                            // table.getModel().setValueAt(this, 1, 0);
                        } 
                    }
                } 
     
            table.getColumnModel().getColumn(1).setResizable(false);
            table.getColumnModel().getColumn(1).setPreferredWidth(70);
            //:) Falta seleccionar la primera familia
            //
     
            table.changeSelection(1, 0, true, true);
     
            setTitle( "Codificación de Materiales" );
            setSize( 1000, 750 );
            setBackground( Color.gray );
            JPanel topPanel = new JPanel();
            topPanel.setLayout( new BorderLayout() );
            getContentPane().add( topPanel );
            //creaCodifica(); // Codifica
            jpCodifica = new JPanel(); // Crea los Tabs
            jpCodifica.setLayout( null );
     
            JScrollPane jspFam = new JScrollPane(table); // Familia
            jspFam.setBounds(10, 10, 300, 630);
            jpCodifica.add( jspFam );

    I found his sample code:
    import java.applet.Applet;   
    import java.awt.Checkbox;   
    import java.awt.CheckboxGroup;   
    /*  
    <applet code="SetSelectedRadioButtonExample" width=200 height=200>  
    </applet>  
    */  
    public class SetSelectedRadioButtonExample extends Applet{   
            CheckboxGroup lngGrp = null;   
            public void init(){   
                    //create group   
                    lngGrp = new CheckboxGroup();   
                    //create checkboxes and add to group   
                    Checkbox java = new Checkbox("Java", lngGrp, false);   
                    Checkbox cpp = new Checkbox("C++", lngGrp, false);   
                    Checkbox vb = new Checkbox("VB", lngGrp, false);   
                    //add radio buttons   
                    add(java);   
                    add(cpp);   
                    add(vb);   
                    lngGrp.setSelectedCheckbox(java);   
            }   
    }

    My question is how can I do the instruction

    lngGrp.setSelectedCheckbox(java);

    On my first code (I use JDBC for populate my jTable with jRadioButtons).

    Thanks in advance
    tomrey
    Last edited by tomrey; February 26th, 2013 at 11:48 AM. Reason: Some programmer told me is misleading my question


  2. #2
    Junior Member tomrey's Avatar
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    Default Re: How to select default value of jRadioButton inside jTable

    I found how using:

    table.setValueAt(true, 0, 1);

    Thanks a lot anyway.
    Regards
    tomrey

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