asked on

How to disable the Movement of JTable Column

JTable has a useful function that the User can move any Column as the like and JTable can reorganize it automatically. But for some reason,I need to disable this function. How can I do?

Now My method is:
class CustomModel extends DefaultTableModel {
       public CustomModel(Object[][] data, Object[] columnNames) {
              super(data, columnNames);
      }
       public Class getColumnClass(int col) {
            // dataVector is a protected member of DefaultTableModel

              Vector v = (Vector)dataVector.elementAt(0);
            return v.elementAt(col).getClass();
       }
public boolean isCellEditable(int row, int column) {
if(column < 3)
return false;
else
return true;
}

}
CustomModel dataModel = new CustomModel(data,names);
JTable tblData = new JTable(dataModel);

But when using TableColumnModelListener,
it report an error.

Thank you very much.

ASKER CERTIFIED SOLUTION

sankars98

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EdwardWong

ASKER

> But when using TableColumnModelListener, it report an error.

What error are you getting and how do you use it?
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
I use
"table.getColumnModel().addColumnModelListener ( new tableColumnModelListener () {
.........}); "

in init() Function.
The java compiler reports an error, as below:
Anonymous class of method jbinit() should be declared abstract, it does not define method columnSelectionChanged(javax.swing.event.ListSelectionEvent) in Interface javax.swing.event.TableColumnModelListener.

Thank you for your help.

sankars98

>Anonymous class of method jbinit() should be declared abstract, it does not define method columnSelectionChanged
>(javax.swing.event.ListSelectionEvent) in Interface javax.swing.event.TableColumnModelListener.

It seems you have not implement the
TableColumnModelListener() properly.

You have to implement all the functions(5) in TableColumnModelListener when you try to implement this interface.

table.getColumnModel().addColumnModelListener( new TableColumnModelListener(){

public void columnAdded(TableColumnModelEvent e){}

public void columnMarginChanged(ChangeEvent e){}

public void columnMoved(TableColumnModelEvent e){}

public void columnRemoved(TableColumnModelEvent e){}

public void columnSelectionChanged(ListSelectionEvent e){}

});

Sankar S.

EdwardWong

ASKER

No, I implement all the functions(5) in tableColumnModelListener, As below:

table.getColumnModel().addColumnModelListener( new TableColumnModelListener(){

public void columnAdded(TableColumnModelEvent e){}

public void columnMarginChanged(ChangeEvent e){}

public void columnMoved(TableColumnModelEvent e){
table.getTableMode()...
^^^^^^^^^^^^^^^^^^^^^^^^^^^
}

public void columnRemoved(TableColumnModelEvent e){}

public void columnSelectionChanged(ListSelectionEvent e){}

});

I think if in the Implementation Java doesn't allow user to cite the table it self.