Hi
I am trying to do a JTable that once the last cell in the last row is
edited and the user hits the return key, a new row is inserted at the
end of the table. I have created a listener object in the JTable
which catches a keyEvent and if it is a ENTER key event, inserts a
row at the end of the table. I am wondering whether this is the right
way to go about it or is there a better way?
/**
* As each key is passed to the editor component in editCellAt()
the keylistener
* implemented in this class is notified.
*/
public class ReturnKeyListener extends KeyAdapter{
/**
* This method checks whether the key is a RETURN/ENTER key and
if it is,
* the current edit is stopped by invoking the editors
stopCellEditing() method.
* If this works, the editor has been removed and the current
row count is gotten
* and if the editing row is the last row in the table, insertRow
() is called.
*/
public void keyPressed(KeyEvent evt){
if(evt.getKeyCode() == KeyEvent.VK_ENTER){
if(inReturnEditor == true){
TableCellEditor editor =
getCellEditor();
int editRow = getEditingRow();
int editCol = getEditingColumn();
if (editor != null){
boolean stopped =
editor.stopCellEditing();
if(stopped == true){
int rowCount =
getRowCount();
if(editRow ==
(rowCount - 1)){
insertRow
(editRow + 1);
}
}
}
}
}
}
}
I have come across some stuff about the TAB key and how Swing
components filter out TAB key presses at a very low level and pass
them to the Swing focus manager, where they are consumed(Core Swing
advanced Programming:kim Topley). Is is the same for RETURN key
presses.
I have a second question : I want to validate the data entered into a
textfield in a cell in the JTable and at the moment I am doing the
validation in StopCellEditing(), is there a better way to do this?
Thanks in advance
Sinead
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