Tree UI element

[Former Member]

Hello,

I really appreciate this forum for all of the the help its members provide. I'm developing an application in WDA where I need to use 'tree UI element'.

So I have a tree under which i directly have several 'tree item type' UI elements ( no node type since i want items directly in the second level which i do not want to expand)

My problem is that when I click a button the view in which i have the tree is loaded ( the view is in a view container).

The tree by default is expanded to show the child elements. I don't want the tree to be expanded by default. The user should be able to expand it by clicking on the expand / drop arrow and only then should he be able to see the child elements or else the entire purpose of the tree is gone.

How should i do that could some one provide a solution.

Also, the expand property of the root of the tree is to be controlled. And it does not have the 'expanded' property in the list of properties.

[Former Member]

Hallo,

i think the problem is

> So I have a tree under which i directly have several 'tree item type' UI elements ( no node type since i want items directly in the second level which i do not want to expand) 

if you have tree node type then you will have isExpaned,isFolder attibutes.

so make your context such a way that you have the recursion node under another node with cardinality of 0..n.

for example

--tree_node ..cardinality 0..n

--- tree_node_type 0..n

--recuursion_node

--- all your attributes here

--- isExpanded

--- hasChildren

View layout

-

---

bind tree datasource to --tree_node

bind tree node type dataSource to --- tree_node_type

bind other propertie like isExpaned,hasChildren to --- isExpanded, --- hasChildren