Flex Tree with infinite parents and children
- by Tempname
I am working on a tree component and I am having a bit of the issue with populating the data-provider for this tree.
The data that I get back from my database is a simple array of value objects. Each value object has 2 properties. ObjectID and ParentID. For parents the ParentID is null and for children the ParentID is the ObjectID of the parent.
Any help with this is greatly appreciated.
Essentially the tree should look something like this:
Parent1
Child1
Child1
Child2
Child1
Child2
Parent2
Child1
Child2
Child3
Child1
This is the current code that I am testing with:
public function setDataProvider(data:Array):void
{
var tree:Array = new Array();
for(var i:Number = 0; i < data.length; i++)
{
// do the top level array
if(!data[i].parentID)
{
tree.push(data[i], getChildren(data[i].objectID, data));
}
}
function getChildren(objectID:Number, data:Array):Array
{
var childArr:Array = new Array();
for(var k:Number = 0; k < data.length; k++)
{
if(data[k].parentID == objectID)
{
childArr.push(data[k]);
//getChildren(data[k].objectID, data);
}
}
return childArr;
}
trace(ObjectUtil.toString(tree));
}
Here is a cross section of my data:
ObjectID ParentID
1 NULL
10 NULL
8 NULL
6 NULL
4 6
3 6
9 6
2 6
11 7
7 8
5 8
