Awesome stuff guys!!
The & thing didn't work for me when I tried that... I thought just maybe,
but nah. This was part of the source of my question, "How do you do a logical
AND?"
The function method that Richard posted is something I am going to try as I
think that's exactly what I'm looking for. I would like to avoid setting up an
event listener, but if that's the only way...
Thanks again for the help thus far... if anybody has anything else, please let
me know!
--- In flexcoders@yahoogroups.com, Richard Rodseth <rrods...@...> wrote:
>
> Rick is correct. You can also use a local binding function like this:
>
> <s:Button enabled="{enableButton(showMe, hideMe)}"/>
>
> where enableButton is a function in your Script block that takes two boolean
> parameters.
>
> Or, if you have a presentation model, it could have a computed property
> buttonEnabled
>
> <s:Button enabled="{model.buttonEnabled}"/>
>
> Excerpt of presentation model:
>
> [Bindable(event="showMeChanged")]
> [Bindable(event="hideMeChanged")]
> public function get buttonEnabled():Boolean {
> return showMe && hideMe;
> }
>
> public function set showMe(value:Boolean):void {
> if (value != this.showMe) {
> this.showMe = value;
> dispatchEvent(new Event("showMeChanged"));
> }
> }
>
> Hope this helps.
>
>
> On Mon, Apr 12, 2010 at 4:31 PM, Rick Genter <rick.gen...@...> wrote:
>
> >
> >
> >
> > On Apr 12, 2010, at 10:31 AM, Doug wrote:
> >
> > > I seem to have little success with this and would like to know other ways
> > of accomplishing what I want to do.
> > >
> > > I'm trying to enable/disable a button based on two pieces of criteria. It
> > would seem that a logical OR or a logical AND would bridge these much like
> > an IF statement, however, I'm struggling to make it work 100%.
> > >
> > > Consider a button:
> > >
> > > <s:Button enabled="{showMe || hideMe}"/>
> > >
> > > This button's enabled property is based upon the binding of the variables
> > for "showMe" and "hideMe". If showMe or hideMe is true then the button is
> > enabled. This works fine when using a logical OR. However, the following -
> > using a logical AND - does not:
> > >
> > > <s:Button enabled="{showMe && hideMe}"/>
> > >
> > > How do you do a logical AND?? Also, if I wanted to set showMe and hideMe
> > based on several lines of code how would I best do it? How would you bind a
> > function output to a display object? I only see a way to do it based upon
> > event:
> > >
> > > [Bind (event: <some event here>]
> > > private function myFunction():void{}
> > >
> > > Thanks in advance!!
> >
> > I haven't tried this, but I suspect that you are being bitten by XML. Try
> > this:
> >
> > <s:Button enabled="{showMe && hideMe}"/>
> >
> > --
> > Rick Genter
> > rick.gen...@... <rick.genter%40gmail.com>
> >
> >
> >
>
