Are you sure the customComponent has been
instantiated when you call addEventListener?
From:
[email protected] [mailto:[EMAIL PROTECTED] On Behalf Of wcucsd
Sent: Monday, May 09, 2005 2:45 PM
To: [email protected]
Subject: [flexcoders] Event
dispatch question
I have an application that contains a datagrid and
a custom
component. I want to notify the custom
component that the user has
changed rows in the grid. The application
has some associated
ActionScript. In the ActionScript, I setup
the listener as follows:
this.addEventListener("rowChange", customComponent);
When the user does a mouseUp on the datagrid, I
have it do this:
function broadcastChange()
{
dispatchEvent({type: "rowChange"});
}
And, in the custom component, I have this
function:
function rowChange() : Void
{
if
(dataObject.hasNote() == true)
detailViewNoteButton.enabled = true;
else
detailViewNoteButton.enabled = false;
}
The problem is that, while the dispatchEvent is
called correctly,
the custom component's rowChange function never
gets called. Any
ideas why? The custom component is declared
as follows in the
<mx:Application> MXML:
<mx:Canvas id="topCanvas"
width="100%" height="55%">
<CustomComponent
id="customComponent"
dataObject="{grid.selectedItem}"
</mx:Canvas>
It works fine if I make a local object the object
listener instead
of the custom component as in
var listenerObject = new Object();
listenerObject.rowChange =
function(event)
{
// handle event
}
this.addEventListener("rowChange", listenerObject);
It's almost like the addEventListener doesn't know
about the
customComponent instance...
Thanks,
-Will
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