Hi!
I'm trying to understand the binding strategy used in pivot, and as I could see, it maps components declared in WTKX files directly to properties in the class, using name conventions. Is it Right? 2010/3/29 Todd Volkert <[email protected]> > What he said :-) > > Michael, I'd add that to your "simple" requierment, WTKX script might be > the simplest way to wire up these types of quick event handlers. You'd need > your user object class to fire events the Pivot way (using Pivot's > ListenerList). Then, your WTKX could look something like this: > > <myPackage:UserData wtkx:id="userData" > UserDataListener.fooChanged="textInput.setText(userData.getFoo())"/> > ... > <TextInput wtkx:id="textInput" > TextInputTextListener.textChanged="userData.setFoo(textInput.getText())"/> > > -T > > > On Mon, Mar 29, 2010 at 8:47 AM, Greg Brown <[email protected]> wrote: > >> As you guessed, this type of data binding isn't currently supported. >> Having worked with data binding systems like this in the past, I find that >> it can lead to confusing and inefficient code, as too many things are >> happening in the background when they don't need to be. >> >> The load()/store() model used by Pivot maps more closely to how data >> binding is used in many practical applications (especially those that are >> REST-based): after making a server query to retrieve your data, you populate >> your form using the load() method. When you want to save it back to the >> server, you store() it into your model and upload it back to the server. >> >> More dynamic updates (like those you describe) can easily be achieved via >> event listeners. This way, your application has complete control over what >> is updated and when. >> >> G >> >> On Mar 28, 2010, at 11:48 PM, Michael Allman wrote: >> >> > Hello, >> > >> > I have two related questions on data binding in Pivot. After a lot of >> searching and digging, I'm pretty sure the answer is "no" to both of these >> questions. I just want to confirm so we can move on to step 2---how to fix >> the situation. >> > >> > So suppose we have some kind of User object with a r/w "name" property >> and a Label declared in some WTKX file. My questions are: >> > >> > 1. Is there a simple way to bind the Label's "text" property to the >> User object's "name" property in such a way that as the app user types into >> the text field the value of the latter property is set to the value of the >> former (label.text => user.name)? >> > >> > 2. Is there a simple way to bind the User object's "name" property to >> the Label's "text" property in such a way that when the value of the former >> property is changed, the value of the Label's "text" property is set to the >> new value of the User object's "name" property? >> > >> > This is a very important capability for me, and it's one that I think >> has a reasonably simple solution. But I'd like to get a Pivot expert's >> thoughts first. Maybe I'm missing something that's already there, or some >> other feature that's more powerful than this. >> > >> > Cheers, >> > >> > Michael >> >> > -- Att, Luiz Gustavo S. de Souza Analista de Sistemas - Desenvolvedor Java http://luizgustavoss.wordpress.com http://luizgustavoss.blogspot.com http://twitter.com/lugustso
