Textfield Limit

smithslist

Hi all,

Can anybody tell me what is the most simplest way to only allow numbers within a textfield, and how I can limit the text size of the user to 2, here is my creation of the textfield, and I require th get as its reading from the users input.

Also I already have a listener to retrieve the value of the textfield to correspond to the listener of that

// Create the Text fields for the Record Details Panel
final JTextField Age_TextField = new JTextField(node.getFileSizeText());
Age_TextField.setHorizontalAlignment(JTextField.CENTER);

// Add the Action Listioner to the textfields of the Record Details Panel
Age_TextField.getDocument().addDocumentListener
(
new DocumentListener()
{
public void changedUpdate(DocumentEvent e)
{
RootNode node = (RootNode)getSelectedNode();
node.setFileSizeText(Age_TextField.getText());
setConfigChanged(true);
}

public void insertUpdate(DocumentEvent e)
{
RootNode node = (RootNode)getSelectedNode();
node.setFileSizeText(Age_TextField.getText());
setConfigChanged(true);
}

public void removeUpdate(DocumentEvent e)
{
RootNode node = (RootNode)getSelectedNode();
node.setFileSizeText(Age_TextField.getText());
setConfigChanged(true);
}
}
);


i read that all it is possible to input the code within the:
public void insertUpdate(DocumentEvent e) ....event listener
{
...code
}

can anybody help me please......

thanks all.......

Adam

A formatted text field is your solution I imagine. See here:

http://java.sun.com/docs/books/tutorial/uiswing/components/formattedtextfield.html