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The Archives

• Components, Flex resources

  Flex/Flash Pivot Table and Charts component

  Stelian Crisan | 10.11.09 | Permalink | 1 Comment

  I was recently presented a component that I find interesting and useful at the same time, this is Flex/Flash Pivot Table and Charts component.
  The Flexmonster team made a nice multidimensional data visualization, reporting and analysis tool for any BI solution. A few of most important features are:

  Display large amounts of information the friendly way
  Pivot [...]

• Components

  Multiple selection list component

  Stelian Crisan | 20.09.09 | Permalink | 6 Comments

  This component was created in order to improve user experience when the user must select multiple options from a long list of items. As you already know, if you select more items from a list component you have to scroll in order to see what it’s you actual selection.
  So, what you do if you [...]

• ActionScript, Components, Events, Flex resources, How to, MXML

  How To Create Bindable Properties (using Getters and Setters Methods) in Flex

  Andrei Ionescu | 26.06.09 | Permalink | 1 Comment

  Let’s say you created a new component and you want to add some properties that need to be bindable. Something like this:

  <flexer:myComp width="400" height="200" myNewSetter="{_myData}" />
  <mx:Script>
  [Bindable]
  private var _myData:String= "";
  </mx:Script>

  And when we do this

  _myData = "new_val_1";

  the myComp component should know that _myData has changed and should modify itself [...]

• ActionScript, Components, Events, How to, MXML

  How To Change The Default Behavior of DisclosureIcon of a Tree Component

  Andrei Ionescu | 21.04.09 | Permalink | Comment?

  This weekend I’ve been programming a new tree component that is intended to be used as a hierarchical menu. One thing that I have to do was to change the default behavior of the disclosureIcon. If you wonder what is the disclosureIcon, it is the grey arrow that shows if there is a node or [...]

• ActionScript, Components, Events, MXML, Skin

  MatrixGrid Component – Extending The DataGrid

  Andrei Ionescu | 30.06.08 | Permalink | Comment?

  MatrixGrid is a complex component I made that displays a bi-dimensional array and gives the possibility to change its values using combo boxes. These are the changes you can do:

  change one single item

  change one row at once
  change one column at once

  The MatrixGrid component receives for objects:

  array with the possible values in each combo box
  the [...]

• ActionScript, Components, How to, MXML

  Continuing Image With Border

  Andrei Ionescu | 12.06.08 | Permalink | 5 Comments

  In the last article I explained how to create an image surrounded by border. That article is a start for fixing the issue: “image doesn’t have border style”.
  Now I extended even more the new ImageBorder component to be able to center it horizontally and vertically and still be well displayed.
  Modifications were made in updateDisplayList method [...]

• ActionScript, Components, How to, MXML

  How To Make an Image With Border

  Andrei Ionescu | 10.06.08 | Permalink | 7 Comments

  How to put border around an image? How to do that when you set only maxWidth and maxHeight? This is not an easy task. Googleing about my issue I found this, on Adobe’s LiveDocs (you must go at the end where comments are): a couple of helpful comments where Justin.Buser is, literally, drawing a rectangle [...]

• ActionScript, CSS, Components, How to, MXML

  ImageRail – Adding Click Event, Styles And HandCursor

  Andrei Ionescu | 05.06.08 | Permalink | 5 Comments

  Some time ago, in a previous article I presented you ImageRail component that displays some thumbnails with possibility to scroll to left or right. Now we will add some new features that were missing.

  Click Event – imageClick
  Styles – imageBackgroundAlpha
  HandCursor

  Click event will be triggered when there is a click on an image, more precisely, on the [...]

• ActionScript, Components, How to, MXML

  How To Add an Event To a Custom MXML Component using Event Meta Tag

  Andrei Ionescu | 30.05.08 | Permalink | 4 Comments

  Using events is fun in MXML components is fun and easily you can specify events using Event meta tag inside the component like this:
  <mx:Metadata>
  [Event(name="myevent", type="com.MyEvent")]
  </mx:Metadata>
  The following lines defines the myevent attribute of the component like this:

  <com:FramedImage x="10" y="10" myevent="handleMyEvent(event)" … />

  FramedImage component is a custom component which displays a framed image.
  For [...]

• ActionScript, Components, How to, MXML

  Image Gallery Component – ImageRail

  Andrei Ionescu | 29.05.08 | Permalink | 7 Comments

  In this article I’ll present a new component I built: ImageRail. This MXML component will display a series of thumbnails having the possibility to scroll them horizontally.
  Parameters:

  paths: an array containing URLs to images
  images: an array containing image objects
  imagesToShow: an unsigned integer that specifies the number of images displayed at a time – deafult is [...]

• ActionScript, Flex 2, MXML

  Add CSS style to a component

  Stelian Crisan | 30.10.07 | Permalink | 1 Comment

  This it’s a clean example about how to add a CSS style to a component in Flex.
  We need to create the CSS file (style.css) and add a custom style:

  .myStyle {
  font-size: 20px;
  color: #cc0000;
  }

  Make a new Flex project and in the defalul MXML aplication file add this code:

  <?xml version="1.0" encoding="utf-8"?>
  <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
  layout="absolute" >
   
  <!–// Here we call our [...]

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FLEX{er} is a tool where information regarding Flex & Actionscript programming languages is gathered starting from general info like books and resources and going to examples of actionscript for specific problems. [...]

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comments

• rodiq: I looked a lot for a multiselect component, it is just great! In my case, I just modified it to work with...
• Nami: Thank you !!
• Gert-Jan van der Wel: It seems to work when you pass in the whole path of the class. var myClass:Class =...
• Andrei Ionescu: Cornelius, thanks for your fix.
• Cornelius: In the end, you forgot the case of a right-aligned image: if (getStyle("horizontalAlign") == "right")...