RE: [flexcoders] setting mxml attributes in actionscript when those properties don't exist

[Seth Caldwell]

Thanks Gordon. Can I ask what would happen if you had an attribute the same
name as a style and the same name as an event and you tried to set this in
the mxml? 

Or would this not be allowed? If its not allowed it seems like events and
styles should automatically create getters/setters of their variable types
on the classes so that you programmatically could do something like
component.someEventName = someFunctionName; instead of
component.addEventListener("foo",bar);  and the variable would be of type
EventListener, or something. /shrug

It just feels sort of hackish if you know what I mean.

 

Seth

 

From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of Gordon Smith
Sent: Friday, December 21, 2007 1:55 PM
To: flexcoders@yahoogroups.com
Subject: RE: [flexcoders] setting mxml attributes in actionscript when those
properties don't exist

 

Some MXML attributes specify properties, some specify styles, some specify
event handler bodies, and some specify effects. (And some, like 'id', get
special handling.)

 

The programmatic way to set a property is

 

    component.foo = bar;

 

The programmatic way to set a style or effect is

 

    component.setStyle("foo", "bar");

 

The programmatic way to set an event handler is

 

    component.addEventListener("foo", bar);

 

Gordon Smith

Adobe Flex SDK Team

 

  _____  

From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of Seth Caldwell
Sent: Friday, December 21, 2007 11:25 AM
To: flexcoders@yahoogroups.com
Subject: RE: [flexcoders] setting mxml attributes in actionscript when those
properties don't exist

Well, I solved the problem by using
adgc.setStyle("headerStyleName","someStyle");  - however I'm still confused
as to how there are attributes you can specify in mxml that can't be set
programmatically.

I've encountered this elsewhere also - is it just a styles thing?

Seth

From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of Seth Caldwell
Sent: Friday, December 21, 2007 11:20 AM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] setting mxml attributes in actionscript when those
properties don't exist

For example, I'm wanting to set the headerStyleName on an
AdvancedDataGridColumn. which you can do with mxml:
<mx:AdvancedDataGridColumn headerStyleName="someStyle"/>

However, when I try to do it with actionscript:

var adgc:AdvancedDataGridColumn = new AdvancedDataGridColumn();

adgc.headerStyleName = "someStyle";

I get the error that headerStyleName is not defined on
AdvancedDataGridColumn.

Huh?

Whats going on here, and how can I set it programmatically? 

Thanks,

Seth