Re: tables and table headers

Thank you for replying to my question, Frank. 

First, let me make sure I understand you correctly.  Are you saying that
you DON't use the <tableheader> tag?  That's what it sounds like, but I
want to make sure. 

Second, my tablemodel class is extending DefaultTableModel, so it was
returning the right values in getColumnCount() and getColumnName().  I
stepped through the code in debug mode to make sure.  Even so, I
implemented the methods in my tablemodel class so I would have an
example like yours.

I made these changes but I am still not able to get the table header
displayed :-( 

I must be missing something really fundamental and stupid. 

Here is my simple XML file.... 

<?xml version="1.0" encoding="UTF-8" ?>
<frame id="frame" title="Test Table" size="360,200" >
  <panel id="pnl_North" layout="borderlayout"         
		constraints="BorderLayout.NORTH">
   <table initclass="DNSTableModel"/>
  </panel>
</frame>


And here is my tablemodel class...... 


public class DNSTableModel extends DefaultTableModel {
  /**
   * Constructs a DefaultTableModel object.
   */
  public DNSTableModel() {
    super();
    String[] columnNames = {"Name",
            "E-mail Address",
            "Comments"};
    addColumn(columnNames[0]);
    addColumn(columnNames[1]);
    addColumn(columnNames[2]);
    
    Object[][] data = {
            {"admin", "[email protected]","First Administrator"},
             {"dponos", "[email protected]","Best Administrator"}
    };
    addRow(data[0]);
    addRow(data[1]);
    
  }
  
  public int getColumnCount() {
      
      //this line of code is from the superclass
      int s = columnIdentifiers.size();
      
      //added this just in case 
      System.out.println("columns =" + s);
      return 3;
  }

  public String getColumnName(int column) {
      
     //these lines of code are from the superclass. They work fine. 
     Object id = null; 
     String col; 
     if (column < columnIdentifiers.size()) {  
        id = columnIdentifiers.elementAt(column); 
     }
     col = (id == null) ? super.getColumnName(column) 
                          : id.toString();
     
     //added these lines just in case.....
      System.out.println(col);
      switch (column) {
          case 1:
              return "Name";
          case 2:
              return "E-mail address";
          case 3:
              return "Comments";
          default:
              return null;
      }
  }


And here is my application classl mostly copied from Actions.java in the
samples.... 

  private Tables() {
    try {
      swix = new SwingEngine( this );
      swix.render( "xml/tables.xml" );
      swix.getRootComponent().setVisible(true);
    } catch (Exception e) {
      e.printStackTrace();
    }
  }

  /**
   * Invoked when the user attempts to close the window
   * from the window's system menu.  If the program does not
   * explicitly hide or dispose the window while processing
   * this event, the window close operation will be cancelled.
   */
  public void windowClosing(WindowEvent e) {
    System.out.println( "Good Bye!" );
    super.windowClosing(e);
    System.exit( 0 );
  }

  //
  //  Make the class bootable
  //

  public static void main(String[] args) {
    new Tables();
  }
}



On Mon, 2005-01-24 at 01:17, [email protected] wrote:
> List for Users of Carlsbad Cubes' Technologies and Products <[email protected]> schrieb am 23.01.05 19:53:02:
> > 
> > I am having difficulty getting table headers to show up in the GUI.  I
> > have a table that I am initializing through a table model.  That part is
> > working just fine. 
> > 
> > I tried using the tableheader tag, and initializing it using a
> > tablecolumnmodel.
> 
> I usually use code like this in my tablemodel:
>     public int getColumnCount() {
>         return ...;
>     }
> 
>      /* (non-Javadoc)
>      * @see javax.swing.table.AbstractTableModel#getColumnName(int)
>      */
>     public String getColumnName(int column) {
>         switch (column) {
>         case ...:
>             return ...;
>         case ...:
>             return ...;
>         default:
>             return null;
>         }
>     }
> 
> Works like a charme ;)
> 
> > 
> > I also tried not using a tableheader tag, and adding columns to the
> > tablemodel. 
> 
> Never had to use this, so I cannot help you there...
> 
> Frank
> > 
> > Any help on this subject would be greatly appreciated. 
> > 
> > 
> > 
> > 
> > _______________________________________________
> > Forum mailing list
> > [email protected]
> > http://carlsbadcubes.com/mailman/listinfo/forum_carlsbadcubes.com
> 
> 
> 
> 
> _______________________________________________
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