Web X.Y

We discussed some small examples today. In this topic I will give a short description of the things I showed you today. You can view the code for each example by right clicking.

Example 1

You can easily make a variable Bindable in flex, just add the [Bindable] keyword. Example 1 shows a list that is bound to two components: a datagrid and a combobox. Everytime the list changes the components change too.

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Example 2

This example demonstrates the use of different files to have less complexity in your application. In some flex projects I saw that a lot is being done in the main mxml file, resulting in long an overly complex code.

The files

• UserList.as
  Manages a small list of users. The userlist class has a bindable property called list. This property is used by UserEditor.mxml
• UserEditor.mxml
  A small simple editor for the users. Makes use of the userlist for managing the list
• Example2.mxml
  Uses two usereditors (this offcourse for demonstration purposes)

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Example 3

Validators: You can use validators to check data in fields. This is an example I copied from Adobe.

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Example 4

Demonstrates how to create you own events (a request from Niels) . This is useful when one component needs to know whether another component has changed. In this example a login screen sends an event if the user is succesfully logged in. This example uses the component fireevent.mxml.
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Example 5

A beginning of a better example that reads xml in actionscript, not by using mxml. Later this example will use classes for this. (Does not work on this server yet, the better example will work)

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