Hi,
is it somehow possible to get item's depth in ArrayCollection?
Hi,
is it somehow possible to get item's depth in ArrayCollection?
From the livedocs:
// Get the index of the item with the value ME.
var addedItemIndex:int=myAC.getItemIndex("ME");
Not an answer, I can't post comments.
From live docs: http://livedocs.adobe.com/flex/3/langref/mx/collections/ArrayCollection.html
The ArrayCollection class is a wrapper class that exposes an Array as a collection that can be accessed and manipulated using the methods and properties of the ICollectionView or IList interfaces.
Why do you think an ArrayCollection has depth?
I guess you can make an ArrayCollection of sub-ArrayCollections. If this is the case; then you could write a function that searches through all its sub-ArrayCollections.
EDIT: I think there are some bugs in the function you suggested. Here's a function I tried:
public function getItemNestLevel2(needle:Object, haystack:Object):Number
{
for each (var item:Object in haystack)
{
if (item == needle)
return 0;
if (item is Array || item is ArrayCollection)
{
var nestLevel:int = getItemNestLevel2(needle, item);
if (nestLevel >= 0)
return nestLevel + 1;
}
}
return -1;
}
here is my code...
public function getItemNestLevel(needle:Object, haystack:Object, level:Number = 0):Number
{
//iterate through items
for each (var item:Object in haystack)
{
if (item == needle)
{
return level;
}
//iterate through item's properties
for each (var child:Object in item)
{
if (child is Array || child is ArrayCollection)
{
var lvl:Number = level + 1;
var num:Number = getItemNestLevel(needle, child, lvl);
if (num >= 0)
{
return num;
}
}
}
}
return -1;
}