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TreeView iterate through childnodes in JS Options
MRmP
Posted: Thursday, July 7, 2011 9:10:15 AM
Rank: Newbie
Groups: Member

Joined: 7/7/2011
Posts: 4
Hi everyone.

Ive been spending the day trying and failing to do what should be a simple task, iterate through childnodes of a treeview in JS.

I know I need a recursive method, but first of all, I have problems getting a array of all childnodes of parent.

Could anyone help out here?
eo_support
Posted: Thursday, July 7, 2011 10:27:50 AM
Rank: Administration
Groups: Administration

Joined: 5/27/2007
Posts: 24,194
Hi,

You would first call this function to get the "sub group" of a parent node:

http://doc.essentialobjects.com/library/1/jsdoc.public.navigationitem.getsubgroup.aspx

Code: JavaScript
//Get the "sub group" of a tree node. "sub group" is
//basically a collection of child nodes
var subNodes = node.getSubGroup();


The returned value is a NavigationItemGroup object, you can then call the following two functions to get all nodes:

http://doc.essentialobjects.com/library/1/jsdoc.public.navigationitemgroup.getitemcount.aspx
http://doc.essentialobjects.com/library/1/jsdoc.public.navigationitemgroup.getitembyindex.aspx

Code: JavaScript
//Create an array "nodes" that contains all sub nodes
var nodes = new Array();
for (var i = 0; i < subNodes.getItemCount(); i++)
{
   nodes[i] = subNodes.getItemByIndex(i);
}


Hope this helps.

Thanks
MRmP
Posted: Friday, July 8, 2011 7:27:32 AM
Rank: Newbie
Groups: Member

Joined: 7/7/2011
Posts: 4
Thank your very much :)

I've finally managed to loop through all child nodes, it was a bit of an hassle, I don't even think I looked at the subGroup function when looking through the docs multiple times.


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