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Learn how to write inline event handler code to handle slider change events.
Click SliderChangeEvent01 , SliderChangeEvent02 , and SliderChangeEvent03 to run the Flex programs from this lesson. (Click the "Back" button in your browser to return to this page.)

Table of contents



This lesson is part of a series of tutorial lessons dedicated to programming with Adobe Flex. The material in this lesson applies to both Flex 3 and Flex 4.

Viewing tip

I recommend that you open another copy of this document in a separate browser window and use the following links to easily find and view the figures andlistings while you are reading about them.


  • Figure 1 . Browser image at startup for the Flex 3 project.
  • Figure 2 . A toolTip on the slider.
  • Figure 3 . Changing the height of the image.
  • Figure 4 . Flex Builder 3 Components tab exposed.
  • Figure 5 . Drag controls onto the Flex Builder 3 Design tab.
  • Figure 6 . The Flex Builder 3 Properties tab exposed.
  • Figure 7 . Browser image at startup for the hybrid project.
  • Figure 8 . Flex Builder 4 Components tab exposed.
  • Figure 9 . Drag controls onto the Flash Builder 4 Design tab.


  • Listing 1 . XML code before setting properties forSliderChangeEvent01.
  • Listing 2 . Beginning of XML code for SliderChangeEvent01.
  • Listing 3 . Create and condition the slider.
  • Listing 4 . Import an image.
  • Listing 5 . Mxml code for the layout shown in Figure 9.
  • Listing 6 . Complete listing of SliderChangeEvent01.
  • Listing 7 . Complete listing of SliderChangeEvent02.
  • Listing 8 . Complete listing of SliderChangeEvent03.

Supplemental material

I also recommend that you study the other lessons in my extensive collection of online programming tutorials. You will find a consolidated index at www.DickBaldwin.com .

General background information

If you learn how to program using ActionScript 3, you will probably integrate large amounts of ActionScript code into your Flex projects to provide complexevent handling. In the meantime, it is possible to provide simple event handlers in Flex by embedding a very small amount of ActionScript code in your Flex code.I will illustrate and explain that capability in this lesson.


I encourage you to run the online version of the programs from this lesson before continuing.

Three Flex projects

I will present and explain three Flex projects in this lesson. The first project is named SliderChangeEvent01 . This project was first developed using Flex Builder 3 and later developed using the Flex 3 compiler and Flash Builder 4.The results were essentially the same in both cases. This project uses classes from the Flex 3 (mx) library exclusively. (The screen shots shown in Figure 4, Figure 5, and Figure 6 are from Flex Builder 3.)

Questions & Answers

what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
yes that's correct
I think
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
scanning tunneling microscope
how nano science is used for hydrophobicity
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
what is differents between GO and RGO?
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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