I am probably a complete dumb. But dataModel does not have dataProvider
property. How do I pull data into model then?
Tracy Spratt <[EMAIL PROTECTED]> wrote: Or the short answer, the
same way you got the data into the dataProvider for the DataGrid.
Tracy
---------------------------------
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of
Douglas Knudsen
Sent: Monday, December 31, 2007 10:22 AM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Two way binding
That's a wholly different thread. You would use WebService,
HTTPservice, or RemoteObject to perform some sort of server call. Take a look
at the docs on these tags and also at the examples on Adobe.com. For a
ColdFusion based example, you can check this out
http://www.acfug.org/index.cfm?fa=meetings.meetingdetail&EventID=177
DK
On Dec 31, 2007 10:14 AM, mark goldin <[EMAIL PROTECTED]> wrote:
And how data from server gets into the Model?
Douglas Knudsen <[EMAIL PROTECTED] > wrote:
What's wrong with this?
<mx:TextInput text="{ someReferenceToAModel.property }" />
Now, you can use the Binding tag to bind the value in the above back to the
source, your datagrid in this case, but its not really a good idea, though
YMMV.
DK
On Dec 31, 2007 9:33 AM, markgoldin_2000 <[EMAIL PROTECTED]> wrote:
I am trying to figure out what both ways of data binding are.
Basically we have two subjects for data binding: DataGrid and a Form.
With DataGrid it is pretty clear: dataProvider. But with form? It
does not have such a dataProvider property (Which is in my opinion it
should have). So, what's a solution for that? DataModel? Which it
turn does not have dataProvider either. But it does have a source.
Source of what? Data? Ok, let's stick to dataModel. But then I am
reading that it's better to use class-based models. Here is an
example of class-based model form Help:
package
{
[Bindable]
public class ShoppingCart {
public var items:Array = [];
public var total:Number = 0;
public var shippingCost:Number = 0;
public function ShoppingCart() {
}
public function addItem(item:Object, qty:int = 1,
index:int = 0):void {
items.splice(index, 0, { id: item.id,
name: item.name,
description: item.description,
image: item.image,
price: item.price,
qty: qty });
total += parseFloat(item.price) * qty;
}
public function removeItemAt(index:Number):void {
total -= parseFloat(items[index].price) * items[index].qty;
items.splice(index, 1);
if (getItemCount() == 0)
shippingCost = 0;
}
public function getItemCount():int {
return items.length;
}
public function getTotal():Number {
return total;
}
}
}
Two questions:
1. How the data is getting into a picture here?
2. How am I using this model in my mxml file?
Sorry if I am asking something obvious, but I am just having problem
understanding why data-centric environment does not have a straight
way of binding data both ways. All I would want is to assign a data
source to my form and then specify data fields for each control in
the form. Simple as this. Is this possible in Flex?
Thanks
--
Douglas Knudsen
http://www.cubicleman.com
this is my signature, like it?
--
Douglas Knudsen
http://www.cubicleman.com
this is my signature, like it?
