addEventListner in flex



Share on Google+Share on Google+

addEventListner in flex
1 Answer(s)      7 years ago
Posted in : Flex


How do you add event listeners in mxml components and AS3 components?

Can you give me the example for that so i can clearly understand....


View Answers

October 26, 2010 at 12:07 PM


addEventListner in MXML component:

<?xml version="1.0" encoding = 'utf-8'?>
<mx:Application xmlns:mx="">

    import mx.controls.Alert;

    public function Handler():void{
      b1.addEventListener(MouseEvent.CLICK, alertbox, false, 0); 

    public function Handler1():void{
      t1.text = 'click event disabled ';
      b2.addEventListener(MouseEvent.CLICK, alertbox, true, 0);

    public function alertbox(event:Event):void{'click event occured');


    <mx:Button id = 'b1' label = 'b1 control' click = 'Handler()'/>

      <mx:Button id = 'b2' label = 'b2 control' click = 'Handler1()'/>
      <mx:TextInput id = 't1' editable = 'false'/>


    public function message(event:Event):void{'welcome to Flex World');


    <mx:Label text = 'TextInput t2'/>
    <mx:TextInput id = 't2' 
      click = 't2.addEventListener(MouseEvent.CLICK, message, true, 0);'
      editable = 'true'/> 

    <mx:Label text = 'TextInput t3'/>
    <mx:TextInput id = 't3' 
      click = 't3.addEventListener(MouseEvent.CLICK, message, false, 0);'
       editable = 'false'/>


addEventListner in Action Script component:

package myComponents
    import mx.controls.TextArea;

    public class ModalText extends TextArea {

        public function ModalText() {

            addEventListener("enableChanged", enableChangedListener);

        public function enableInput(value:Boolean):void {
            dispatchEvent(new Event("enableChanged"));

        private function enableChangedListener(eventObj:Event):void {
            // Handle event.


Related Tutorials/Questions & Answers:
addEventListner in flex
addEventListner in flex  Hi..... How do you add event listeners... can clearly understand.... Thanks   Ans: addEventListner in MXML...{'welcome to Flex World'); } </mx:Script> <mx:HBox>
Flex Looping
Flex Looping  I need example for flex looping mechanisam example
Flex - Framework
Flex  database conectivity in flex
Flex Combobox
Flex Combobox  flex combobox with database as dataprovider   You can visit the following link for detailed tutorial on the topic. May this will be helpful to you.
Flex basic
Flex basic  Hi...... please just tell me about Can we run Flex applications in MAC? Thanks
Flex and Java
Flex and Java  hi..... Please give similiarities between Java and Flex. Thanks
Flex event
Flex event  Hi.... Please tell me about How to create your own event in flex? Thanks
Flex and Java
Flex and Java  Hi...... Give the name of Collection which can be mapped to java and Flex and vice-versa. please give the name of all collections which is used in flex and java.. Thanks
Flex basic
Flex basic  Hi.... Can flex application communicate with each other on the client? please give me the answer ASAP..... Thanks   Ans: See the LocalConnection API In the flex documentation. Thanks
Flex and Java
Flex and Java  Hi.... What are the config files that are used to connect Java and Flex applications? Please provide the solution of this prob so i connect java and flex.... Thanks
Flex as a Service
Flex as a Service  Hi....... just tell me about How do I run Flex as a service? please give me an example if possible Thanks  Ans: Flex is not a server. It is the pert of your web application. you can use
Flex Updates
Flex Updates  Sir, first Thanks For Good Resource for Every One! i am New to Flex... but,in Current Updates Tell Us Flex Becomes To down!(Sorry To say).. May I know Future groom & Advantage of Flex Over Other Web
Flex basic
Flex basic  Hi.......... I want to know about What is localToGlobal and globalToLocal in flex? please give me ans ASAP..... Thanks
Flex application
Flex application  Hi..... What kind of applications you can create from flex? please give the name of these applications....... Thanks
Flex basic
Flex basic  Hi.... can you tell me about Is Flex OS specific or operating system independent? please give the description about it....... Thanks
Flex basic
Flex basic  Hi.... I want to know Do we need any plugins to run Flex applications? please give the ans ASAP....... Thanks
Flex difference
Flex difference  Hi.... please tell me about What is the difference between Flex 2.0 and Flex 3.0? Thanks  Ans: There are some advantages of Flex3.0 over Flex 2.0 they are following: 1. Faster compilation time
Flex with JSP
Flex with JSP  i want to draw chart in jsp page using flex. how can i do that? any solution??   Flex charts You can visit the following links:
Adding a flex table in another flex table column
Adding a flex table in another flex table column  how to add a flex table in another flex table column
Flex basic
Flex basic  Hi...... Please tell me about What are non-visual components in flex? What class do they extend? please give the name of these components....... Thanks
Flex Managers
Flex Managers  Hi... Please tell me about How to override Managers? give me an example for that.... Thanks
Image in Flex
Image in Flex  Hi..... Can you manipulate images using Flex programs? please give me the example....... Thanks
Flex event
Flex event  hi...... How to capture and event if the component is disabled? please give an example..... Thanks in advance
Metadata in flex
Metadata in flex  Hi......... please tell me about the meta data in flex. Thanks
XML in flex
XML in flex  Hi... just tell me about What is e4X and XML in flex? Thanks
Mask in Flex
Mask in Flex  Hi...... Is it possible to create 'gradient mask' in flex? please give me the ans ASAP..... Thanks in advance
Adobe flex
Adobe flex  Hi... please give me the description about What is Adobe Flex? Thanks
Advantage of Flex
are the Advantages and Disadvantages of flex? Thanks   Advantages: Flex IDE is very capable. Flex output is a movie and images is the major part of this movie. you can not directly download the flex running file. When we right click
Flex event
Flex event  Hi.... please tell me about How does Flex event...: In the capturing phase, Flex examines an event target?s ancestors in the display list to see...: In the targeting phase, Flex invokes the event dispatcher?s listeners. No other nodes
Output of flex
Output of flex  hi....... please provide the name of the output file. What is the output of flex applications? please rply ASAP........ Thanks
FLex basic
FLex basic  Hi..... I want to know about What is the difference between DisplayObjectContainer and DisplayObject? please give an ans ASAP..... Thanks


Advertisement null