Re: [flexcoders] When ModelLocator Databinding does not work...

Fri, 28 Oct 2005 03:42:30 -0700

Hello,
 
Two more methods:
 
1. To use method executeBindings(), on the control
 
2. To recreate the data to which control is binded. For example if we have a list that is binded to array, then we need to recreate the array:
 
temp_arr = new Array();
temp_arr = new_arr;
my_arr = new Array();
//------here we can make any changes to temp_arr-------
temp_arr[n] = x;
//----------------------------------------------------------------------
my_arr = temp_arr;
 
Best regards
Stanislav

 
On 10/7/05, Dimitrios Gianninas <[EMAIL PROTECTED]> wrote:
I think the only way to address your issue. Use the appropriate ViewHelper to tell the view to refresh itself because the data has been updated.
 
Dimitrios "Jimmy" Gianninas
RIA Developer
Optimal Payments Inc.
 

From: flexcoders@yahoogroups.com [mailto: flexcoders@yahoogroups.com] On Behalf Of thomasburleson
Sent: Thursday, October 06, 2005 8:27 AM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] When ModelLocator Databinding does not work...

 
I would like to ask the cairngorm experts a question involving
databinding.

In a current application under development, when I need to load some
data via remoteObjects we use the .getInstance().broadcastEvent( )
which gets forwarded by our controller to the appropriate command.
The delegate dataservice call executes and the result handler is
either in a command onResult_<xxx> method or in a Delegate.create()
callback [passed with the broadcastEvent]. The result data is
massaged and assigned to a property in the ModelLocator.

Great no problem.

But what do we do when the has UI components that do not have direct
bindings to ModelLocator attributes. One trick is to use the
following databinding to fire a "build" method:

<mx:Tree id="companyTree" dataProvider="{buildFromSearchResults
(ModelLocator.companiesFoundBySearch)}" ...

This also works.

But my question is regarding views that are indirectly to
ModelLocator data. So when that data changes, I need to tell the
view to "somehow" update or reinit its contents.

Currently we use

var viewAddressEditor : Object = ViewLocator.getInstance
().getComponentByID( "addressEditorView" );
viewAddressEditor.updateContent();

But this seems SO clumsy and non-elegant. Does anyone have a better
suggestion?

Many thanks,
ThomasB




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