Hi Tracy,
The Tree component has now a dataDescriptor which you can implement with
your own methods if needed. For example:
<mx:Tree id="myTree" x="10" y="10" width="273" height="559"
dataProvider="{something}"
dataDescriptor="{new MyCustomTreeDataDescriptor()}" >
</mx:Tree>
----------------------
MyCustomTreeDataDescriptor .as
package
{
import mx.collections.ICollectionView;
import mx.collections.IViewCursor;
import mx.controls.treeClasses.*;
public class MyCustomTreeDataDescriptor implements ITreeDataDescriptor
{
// The isBranch method simply returns true if the node is an
// Object with a children field.
// It does not support empty branches, but does support null children
// fields.
public function isBranch(node:Object, model:Object=null):Boolean
{
try
{
if (node is Object)
{
if (node.children != null)
{
return true;
}
}
}
catch (e:Error)
{
trace("[Descriptor] exception checking for isBranch");
}
return false;
}
}
There is an example in the livedocs for F2B2 that needs minor changes to
have it working in B3
|---------+----------------------------->
| | |
| | "Tracy Spratt" |
| | <[EMAIL PROTECTED]> |
| | Sent by: |
| | [email protected] |
| | 06/09/2006 04:11 PM |
| | Please respond to |
| | flexcoders |
| | |
|---------+----------------------------->
>-----------------------------------------------------------------------------------------------------------------------------|
|
|
| To: <[email protected]>
|
| cc:
|
| Subject: [flexcoders] Migration: What is the F2 equivalent of
"TreeNode" |
>-----------------------------------------------------------------------------------------------------------------------------|
One of my apps uses the 1.5 TreeNode class and the treeDataProvider methods
to build big complex treeDataProviders.
Is this gone completely in F2? Is there any legacy support?
Is long term migration goig to require moving to an e4x tree? Any other
suggestions?
Tracy
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