Flex - LinkButton Control

Introduction

The LinkButton control is a borderless Button control whose contents are highlighted when a user hover over it. You must specify a click event handler for the LinkButton control to perform some action similar to a button.

Class declaration

Following is the declaration for mx.controls.LinkButton class:

public class LinkButton 
   extends Button

Public methods

S.N.	Method & Description
1	LinkButton() Constructor.

Methods inherited

This class inherits methods from the following classes:

mx.controls.Button
mx.core.UIComponent
mx.core.FlexSprite
flash.display.Sprite
flash.display.DisplayObjectContainer
flash.display.InteractiveObject
flash.display.DisplayObject
flash.events.EventDispatcher
Object

Flex LinkButton Control Example

Let us follow the following steps to check usage of LinkButton control in a Flex application by creating a test application:

Step	Description
1	Create a project with a name HelloWorld under a package com.tutorialspoint.client as explained in the Flex - Create Application chapter.
2	Modify HelloWorld.mxml as explained below. Keep rest of the files unchanged.
3	Compile and run the application to make sure business logic is working as per the requirements.

Following is the content of the modified mxml file src/com.tutorialspoint/HelloWorld.mxml.

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
   xmlns:s="library://ns.adobe.com/flex/spark"
   xmlns:mx="library://ns.adobe.com/flex/mx"
   width="100%" height="100%" minWidth="500" minHeight="500">	
   <fx:Style source="/com/tutorialspoint/client/Style.css"/>
   <fx:Script>
   <![CDATA[
      import mx.controls.Alert;

      protected function clickMe_clickHandler(event:MouseEvent):void
      {
         var linkButton:LinkButton =  event.target as LinkButton;
         Alert.show("LinkButton "+linkButton.id+" Clicked");
      }
      ]]>
   </fx:Script>
   <s:BorderContainer width="550" height="500" id="mainContainer" 
   styleName="container">
      <s:VGroup width="100%" height="100%" gap="50" horizontalAlign="center"
      verticalAlign="middle">
         <s:Label id="lblHeader" text="Basic Controls Demonstration" 
         fontSize="40" color="0x777777" styleName="heading"/>
         <s:Panel title="Using LinkButton" width="420" height="100" >
            <s:layout>
               <s:HorizontalLayout paddingTop="10" paddingLeft="10"/>
            </s:layout>					
            <mx:LinkButton label="Link 1" id="clickMe"
            click="clickMe_clickHandler(event)"/>
            <mx:LinkButton label="Link 2" id="clickMe1" 
            click="clickMe_clickHandler(event)"/>
            <mx:LinkButton label="Link 3" id="clickMe2" 
            click="clickMe_clickHandler(event)"/>
         </s:Panel>			      
      </s:VGroup>	 
   </s:BorderContainer>	
</s:Application>

Once you are ready with all the changes done, let us compile and run the application in normal mode as we did in Flex - Create Application chapter. If everything is fine with your application, this will produce following result: [ Try it online ]

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