John Giotta wrote:
> I've started my own framework and two of the first UI components I've
> created are a ComboBox and List.
>
> A List is actually nested inside the ComboBox.
>
> However, when I compile a movie with a List and a ComboBox on the
> stage they are some how sharing information.
>
> Has anyone experienced this? Its driving me crazy!
My best guess is that you've somehow got your dataProvider reference
scoped to the class prototype rather than the instance. Although the
reference isn't truly static, it behaves as such so that all instances
will share the same data.
Most typically, this is caused by incorrectly assigning a non-simple
value to a property in the class definition (e.g. everything other than
null, undefined, boolean, string and number). A prime example of this
is attempting to initialize an array in the class definition.
Nearly every ECMAScript or Actionscript developer I've met has done this
once or twice by accident, for example:
<code>
class MyBadClass {
public var foo:Number = 3; // Okay
public var bar:Array = new Array(); // Bad!
public function MyClass() {
// Constructor
}
// More methods
}
// Instead, you should do this:
class MyGoodClass {
public var foo:Number = 3; // Okay
public var bar:Array; // Initialize Later!
public function MyClass() {
// Constructor
// Initialize the array here, not in the definition!
bar = new Array();
}
// More methods
}
</code>
For an extended discussion on why this happens and what's actually going
on behind the scenes, see this discussion from the Flashcoders list last
month:
http://chattyfig.figleaf.com/pipermail/flashcoders/2005-December/thread.html#156816
Jim
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