Would probably look something like:
final TextBox text = new TextBox();
final Button button = new Button();
text.addKeyUpHandler(new KeyUpHandler() {
public void onKeyUp(KeyUpEvent event) {
if (text.getText().length() != 0) {
button.setEnabled(true);
}
else {
button.setEnabled(false);
}
}
});
--Dalla
http://date-time.appspot.com/
On 20 Juli, 18:48, Sean <[email protected]> wrote:
> You can put on a keyboard listener, and before you enable the Save
> button, make sure there is text in the text box. textBox.getText
> ().length>0 type of thing.
>
> On Jul 20, 12:26 pm, Bakul <[email protected]> wrote:
>
>
>
> > Hi,
>
> > I have added:
>
> > myTextbox.addChangeListener(new ChangeListener(){
> > public void onChange(Widget sender) {
> > onEdit();
> > }
> > });
>
> > and onEdit() I am enabling Save/Apply button.
>
> > Problem:
> > ChangeListener() get fired when myTextbox loses the focus. So when a
> > person start typing on myTextbox, he is done with entering data but
> > save/apply button is still not enabled as still focus is on myTextbox.
>
> > If I goes and add KeyBoardListener and try to handle it on onKeyDown
> > (), for which keyCode I should fire onEdit() <which enables save/apply
> > button>. I mean it should not be enabled if person press up/down/left/
> > right arrow key or any function key or insert/delete key and many
> > more.
>
> > Is there any known solution to handle this problem?
>
> > Thanks,
> > Bakul.
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