I assume that there would be a bit of code inside the mouseOut handler (or wherever I want) to push the data back into the XML model.
Figure I have this TextInput bound to the xml (e4x) ...
<mx:TextInput id="price" text="[EMAIL PROTECTED]" mouseOut=" what goes here? " >
This is a simple case, but the solution should also elegantly apply to automatically generated / replicated list items... and also executable by any arbitrary code easily....
so some distant script could say price.model.update() or something to push the current price.text back into the xml where it came from...
-Don
The automatic update of the data itself will be available in the Framework, the data services is what allows for automatic transfer back to the server.
The cell renderer APIs may help show you what can be done in Flex 2 as well.
Matt
From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of Dave Wolf
Sent: Wednesday, October 26, 2005 7:34 AM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Re: Two way data binding?
This will be handled in the Flex2 data services. More importantly is
that the changes (inserted, added and deleted buffers) will be
marshalled to the server as needed and can be bound to a persistence
adapter (say Hibernate) to even manage updating the data store with
the changes.
That's where the real power comes in.
--
Dave Wolf
Cynergy Systems, Inc.
Macromedia Flex Alliance Partner
http://www.cynergysystems.com
Email: [EMAIL PROTECTED]
Office: 866-CYNERGY x85
--- In flexcoders@yahoogroups.com, "ddwoske" <[EMAIL PROTECTED]> wrote:
>
> I have big problems understanding something.
>
> I basically want to build UI components which modify underlying XML so
> that I can send the modified XML back to the server. I want to bind
> some TextInput components to portions of the XML and when I change the
> text then I want the XML to be automatically updated. This doesn't
> seem possible, and if it is, it doesn't seem very easy.
>
>
> Using OpenLaszlo here is a simple, but complete program for modifying
> the price of a list of items:
>
> <canvas height="400" debug="true" >
> <debug y="200" />
> <dataset name="inventory" >
> <items>
> <item><name>One</name><price>100</price></item>
> <item><name>Two</name><price>200</price></item>
> <item><name>Three</name><price>300</price></item>
> </items>
> </dataset>
>
> <view>
> <simplelayout axis="y" />
> <!-- Laszlo creates a replicated view for each
> of my item -->
> <view datapath="inventory:/items/item" >
> <text datapath="name/text()" />
> <edittext x="100" datapath="price/text()">
> <method event="onblur">
> this.datapath.updateData();
> </method>
> </edittext>
> </view>
>
> <button >
canvas.datasets.inventory.serialize() )">
> Dump XML</button>
>
> </view>
> </canvas>
>
> You can try running it here:
>
http://www.laszlosystems.com/lps-3.0/laszlo-explorer/editor.jsp?src=""
>
> I can change the prices on the screen, and the underlying XML is
> automatically updated through the use of the updateData() method.
>
> Does this two-way binding exist in Flex 2.0 ?
>
> I see how you can add a mouseOut handler, but I don't see how to push
> the data back into the XML model from where it came from without some
> fancy code in the handler.. can someone tell me how to do this?
>
>
> Cheers,
> Don
>
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---------------------------------------
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Software Journeyman
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