Hello Ray,
thats all working right out of the box. I used the value to apply the
filter and not the keypress events like in the snippet. That way I
don't even have to take care of the special keys like backspace.
Greetings,
Martin
Am 03.07.2009 um 15:49 schrieb Raymond Cote:
Thanks Martin,
I'll probably be updating to trunk shortly and will look at this
example.
In the example you give, how would you setFilter for digits plus
backspace, left/right arrows, begin/end, etc. to allow navigation in
the field?
I added an if statement looking for the individual key identifiers,
but don't know if there's a more "qooxdoo" way to do that.
Perhaps the ability to specify that all navigation-class keystrokes
are allowed?
--Ray
Martin Wittemann wrote:
Hello Ray,
is just added exactly that feature to the framework. So if you are
using the trunk of qooxdoo, you could enable the filter in one line:
textfield.setFilter(/[0-9]/);
Best,
Martin
Am 02.07.2009 um 14:39 schrieb Raymond Cote:
Alexander Back wrote:
Hi Ray,
On Wednesday 01 July 2009 Raymond Cote wrote:
I have a TextField which I'd like to limit to accepting only
digits.
I've added a listener to the TextField and can grab each
keystroke as it
is entered.
However, I'm unclear as to how I could decide whether or not to
let this
keystroke through.
The TextField is not being updated until after I receive the
keystroke,
so I suspect there's something I can do to say "not this
keystroke."
Here's a little snippet that does the job:
--snip--
t = new qx.ui.form.TextField("");
this.getRoot().add(t);
t.addListener("keypress", function(e){
if(e.getKeyIdentifier().search(/[0-9]/) == -1) {
e.preventDefault();
}
});
--snip--
The magic line is the one with the "preventDefault" method. This
way you tell
the browser to not perform the default behaviour. In our case
here it is to
fill the textfield with the pressed key.
cheers,
Alex
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Excellent! Just the key I needed.
Thanks
--Ray
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