RE: [flexcoders] About single methd handling mutiple events.

Fri, 22 Apr 2005 20:18:02 -0700

Abdul,

 

Since my flex app is a prototype, components will surely change names and types, so I am required to have enough flexibility of code and components.

 

Bottom Line:

How can I have a button’s click trigger the same event as my Grid’s cellPress, given the following code?

 

Button:

<mx:Button id="btnViewDetail" label="Ver Detalle"  click="showLiquidationDetail();"/>

 

DataGrid:

<mx:DataGrid id="liquidationRequestsGrid" dataProvider="{mx.utils.ArrayUtil.toArray(liquidationsModel.liquidation)}" cellPress="handleDoubleClick(event);" width="100%">

 

Functions:

                                   public function showLiquidationDetail(Void):Void {

                                               var selectedItem:Object = liquidationRequestsGrid.selectedItem;

                                               getLiquidationDetail(selectedItem);

                                   }

 

                                   public function handleDoubleClick(event:Object):Void {

                                               if (event.target.selectedItem != undefined || event.target.selectedItem.length == 1) {

                                                           if(handler.detectDoubleClick()) {

                                                                       getLiquidationDetail(event.target.selectedItem);

                                                           }

                                               }

                                               else {

                                                           alert("Sólo es posible ver el detalle de una sola liquidación.", "Alerta", Alert.OK, undefined, undefined, errorImg);

                                               }

                                   }

 

Is there a way to have the same event object in both methods, so that I can get rid of the grid reference in showLiquidationDetail method?

 

Hope I’m explaining myself.

 

J.

De: [email protected] [mailto:[email protected]] En nombre de Abdul Qabiz
Enviado el: Viernes, 22 de Abril de 2005 06:14 pm
Para: [email protected]
Asunto: RE: [flexcoders] About single methd handling mutiple events.
Importancia: Alta

 

Hi,


> I wonder if there's a way to avoid this dependency

May be,  what exactly is your requirement?



-abdul


________________________________

From: [email protected] [mailto:[email protected]]
Sent: Saturday, April 23, 2005 4:23 AM
To: [email protected]
Subject: RE: [flexcoders] About single methd handling mutiple events.



Thanks, Abdul.



That's what I thought I'd do, and it looks like this.



        public function handleEvent(eventObj:Object):Void {
               var type = eventObj.type;
               var target = eventObj.target.className;
               if (type=="click" && target == "button") {
                       // I do not want to be dependant on my component's
name!!!!!
                       showTitleView(myDataGridName.selectedItem);
               }
               else if (type=="cellPress" && target == "myDataGridName") {
                       // Like this, where I do not depend on the
component's name to call the same
                       // method.
                       showTitleView(target.selectedItem);
               }
        }



But this way I must rely on my component's id to call the same method if the
event is fired with the button's click. I wonder if there's a way to avoid
this dependency



Any ideas?



J.



________________________________

De: [email protected] [mailto:[email protected]] En nombre
de Abdul Qabiz
Enviado el: Viernes, 22 de Abril de 2005 05:29 pm
Para: [email protected]
Asunto: RE: [flexcoders] About single methd handling mutiple events.
Importancia: Alta



Hi,

you can define a handleEvent(..) function in your application(mail.mxml),
this method would be called whenever an event happen.

Look at the "Defining the handleEvent() method"  section in Flex docs for
more: http://livedocs.macromedia.com/flex/15/flex_docs_en/00000503.htm

Hope that helps

-abdul



________________________________

From: [email protected] [mailto:[email protected]]
Sent: Saturday, April 23, 2005 3:38 AM
To: [email protected]
Subject: [flexcoders] About single methd handling mutiple events.



Hey.



What's the best way to have a single method respond to both a clic event
from a button, and a cellPress event from a DataGrid?

Both components are inside the mail mxml.



Thanks for your help.



J.


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