problem in colors of cells JTable (check this one)

[aminur rashid]

Hi.
My Problem is.
I have a JTable with 2 columns ( Rows can be 1-10 depending upon the size of
input vector)
I have provided two button in my Frame
1)Update Row
2) Update whole Table.
Now i want I want that if a user makes a change in any cell say cell( row
3,Col 1) ;and moves to next row , then the color (background/foreground) of
that cell should change to any other color .Again if he presses any of the
button then the default color of the cell should be restored.Basically i
want to indicate the user that he has made changes in the cell and he needs
to press the button for updation
Now i have wriiten code as

 protected JTable rationalDescTable = new JTable(myModel)
    {    
   public TableCellEditor getCellEditor(int row, int col)
      {  
if (edited)//boolean checks is someone has edited the cell or not   
  {  
   return new DefaultCellEditor(new JTextField())  
   { 
    public Component getTableCellEditorComponent(JTable table,Object value,boolean isSelected,int row,int column)
  {   
 super.getTableCellEditorComponent(table, value, isSelected,row, column);
     JTextField textField = (JTextField)super.getTableCellEditorComponent(table, value, isSelected, row, column); 
rationalDescTable.changeSelection(row,column,false,false);
textField.setBackground(Color.red);textField.getCaret().setSelectionVisible(true);textField.setFont(new Font("SansSerif",Font.ITALIC,12));textField.setSelectionColor(Color.red); // Option  return textField;
 }  
         };  
}    
else  
  {  
 return new DefaultCellEditor(new JTextField())   
     {  
 public Component getTableCellEditorComponent(JTable table,Object value,boolean isSelected,int row,int column)     {     super.getTableCellEditorComponent(table, value, isSelected,row, column);
  JTextField textField = (JTextField)super.getTableCellEditorComponent(table, value, isSelected, row, column); 
 rationalDescTable.changeSelection(row,column,false,false); textField.setBackground(Color.blue);
textField.setForeground(Color.white);
textField.getCaret().setSelectionVisible(true);return textField;  
     }    
 };   
  }
    }

but the problem is that when i click the button the background of cell is not changed from red to
blue. In the action lperformed events of button i have made edited as false.
Regards
Md Aminur Rashid
Pune

[Paul Stevens]

Just a thought, but since the object is to alert the user to changes. Why not just start with the update button not enabled and when any cell is changed enable it?