FTREE_NODE: Find parent node which has no child nodes

Hi guys
Does anybody know how to find a parent node which has no child node(s)?
I couldn't find any build-in at the online help. Is there a trick to got this?
Thanks in advance
Remo

Hi Remo,
I misspoke, in my earlier post. The FTREE built-in has defined constants for the possible values that FTREE.NODE_STATE can have -- FTREE.COLLAPSED, FTREE.EXPANDED and FTREE.LEAF_NODE.
If you wish, rather than testing for a value of '0', you can instead test for a value of FTREE.LEAF_NODE. Both are functionally identical, but using the constants can improve the readability of your code, eliminating the need for additional comments.
Eric

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"whertzing" <[email protected]> wrote in
message
news:[email protected]...
>I have a XML document with (for example) 7 parent nodes,
each parent node
>has 5
> child nodes. The parent nodes have an attribute
@EarlierDTS (DateTime
> type)
> that is the x-axis category of a chart. Each child node
has an attribute
> @eventid which specifies the id of the event, and
another atttribute
> @NumOccurs
> which specifies how many times that event occured in
that period.
>
> How do I tell Flex I want a simple line chart of the
eventID = 215? What
> if I
> want two lines, for both eventID=215 and eventid=307?
>
> I have studied the posts and blogs for over a week now,
and have seen this
> question or similar come up quite a few places, with no
answer.
>
> 1) Should I focus on learning how to create a
filterfunction for the
> XMLList
> that underlies my XMLListCollection so that the filtered
data view is just
> one
> child node per parent node ( or two child nodes for the
second case)? And
> set
> the filtered data view as the dataprovider of my chart's
vertical series?
>
> 2) Should I focus on learning how to create a XML Filter
query that
> selects
> just one or two child nodes for each parent node, and
set the charts'
> series'
> dataprovider to this filter expression? (I don't think
this is allowed -
> but
> I'm checking with the forum members...)
>
> 3) Should I focus on learning how to convert the
XMLListCollection into a
> HierarchicalData object, and then learning how to filter
this object so
> there
> is only one (or two) childs per parent? This seems like
a lot of coding -
> I
> almost have to create a pair of classes - one for the
parent and one for
> the
> child - so I can create nested ArrayObjects.
>
> 4) Should I create a brand new XMLList by walking the
original XML list,
> and
> inserting Parent nodes and just the child nodes that
match the eventID(s)
> I
> want to chart, into the new XMLList?
>
> I believe that the easiest way would be to create a
Filterfunction for the
> XMLList, and bind the chart series to the (filtered) XML
List. But the
> problem
> with this approach is that I have seen more than 2 posts
asking how to
> accomplish filtering that removes specific children from
the view, with no
> solutions posted.
>
> Help! What is the best way to get just one child for
each parent, from an
> XMLList?
I'd just look at a dataFunction. There's an example here that
may point you
in the right direction:
http://flexdiary.blogspot.com/2008/08/charting-example.html
HTH;
Amy

FTREE_NODE: Find parent node which has no child nodes

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