I use a KeyboardListener to check the typed character. I've seen this
example in the book "GWT in Action":
public void onKeyUp(Widget sender, char keyCode, int modifiers) {
if (!Character.isDigit(keyCode)) {
((TextBox)sender).cancelKey();
return;
}
}
In IE it works but in FF the Listeners is listen to the control-,
delete- and backspace- key too. I can't delete an character because
these keys are no digits.
How can I check if the keys are a control, delete or the backspace?
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