Timing is probably your problem. But anyway there's another solution to
accomblish your task you might want to consider. If products is your
dataProvider Array then you can bind to it via
<mx:Binding
source="products" destination="this.productsChanged" />
and handle it via getter / setter properties
public function get productsChanged() : Array
{
return _productsChanged;
}
public function set productsChanged( newProductsChanged : Array)
{
update( newProductChanged );
_productsChanged = newProductsChanged;
}
private var _productsChanged : Array;
in update you can access the updated dataProvider, delegating to other tasks
such as calculating a sum. The textfields could then i.e. bind to simple
properties of your model.
Best,
Alex
--
Alex Uhlmann
Software Engineer
iteration::two
-----Original Message-----
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED]
Behalf Of Johnny
Sent: 14 July 2005 01:45
To: flexcoders@yahoogroups.com
Subject: [flexcoders] modelChanged event
Hi,
I have a DataGrid control and use addItem and removeItemAt method to
add and remove items. This works properly. At the same time, I need
to dynamically calculate the sum for certain field in the DataGrid and
bind the result to a text field.
I add a listener for modelChanged event of dataProvider and add a sum
function there. But the sum function never gets triggered at all even
after an item is added, deleted or all items are removed.
The array that binds to the dataProvider will create after a remote
service call. The listener is created at the initialize function of
the appliation. Could this be a problem?
Thanks,
J
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