Expanding Tree nodes in Web Dynpro

Hi,
I have created a recursive tree with two main nodes. These nodes contain subnodes.
The filling of these nodes has been done in wdDoInit().
The problem is that whenever I expand the second node, the first node also gets expanded.. even when it (first node) is not expanded.
When I go to some other window and then come back to this window (wdModify()),it works properly. i.e. the first node does not get expanded.
Plz help........
Thanks in Advance.
Regards,
harshada.

Hi Harshada
It looks strange to me that you use two main nodes on the first level. In the most cases it's enough to have only one node for each level of a tree.
Are the two nodes mapped to the same context node? If so you do not need the second node I think. Because when the first node is expanded the mapped context node will get the corresponding lead selection. But the lead selection will influence on the second node as well. That's why the tho nodes expand simultaneously.
BR
Sergei

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Expanding Tree nodes

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Expand tree node by clicking onto the node label

I have followed this example to expand the nodes with a clic on the tree :
[http://www.oracle.com/technetwork/developer-tools/adf/learnmore/20-expand-tree-node-from-label-169156.pdf]
My code:
JSPX:
<af:resource type="javascript" source="js/glasspane.js"/>
<af:tree value="#{bindings.OpcionesPadreView1.treeModel}" var="node"
rowSelection="single" id="t1" partialTriggers=":::cbNuevCpta"
binding="#{pageFlowScope.GestionDocumentos.t1}"
selectionListener="#{bindings.OpcionesPadreView1.treeModel.makeCurrent}">
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Edited by: Miguel Angel on 21/06/2012 12:53 PM

At least the call the javascript works, but this line doesn't work, anybody know why?:
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Expand tree nodes

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Working jdev 11.1.1.3.0.
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Hope followings useful
http://andrejusb.blogspot.com/2010/02/how-to-traverse-adf-tree.html
http://www.oracle.com/technetwork/developer-tools/adf/learnmore/20-expand-tree-node-from-label-169156.pdf
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Tree Hierarchy in Web Dynpro

Hello All,
I want to create a web dynpro application that implements some functionlity that I saw in the SAP backend system. In the backend, I have a transaction that allows me to drill down into nodes and add and remove them with a right click context menu. This is like a tree structure with the ability to add, remove and modify node elements. I want to present this to the front end user using web dynpro and possible in a nice table format. How can I go about doing this? Any suggestions?
Thanks
Marshall.

Ok, I try to explain with a simple example.
Say, your context has the following structure:
WebDynproClass (node, cardinality=0:n)
- expanded (boolean)
- name (string)
- SubClasses (recursive node -> Class)
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UIElement (root)
+ AbstractCaption (e_1)
   + AbstractButton (e_1_1)
      + Button (e_1_1_1)
+ RadioButton (e_2)
with code like
/* helper method, put inside //@@begin others...//@@end section */
private IWebDynproClassElement addSubClass(String name, IWebDynproClassElement parent)
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child.setExpanded(true);
child.setName(name);
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private void init()
IWebDynproClassElement root = addSubClass("UIElement", null);
IWebDynproClassElement e_1 = addSubClass("AbstractCaption", root);
IWebDynproClassElement e_1_1 = addSubClass("AbstractButton", e_1);
IWebDynproClassElement e_1_1_1 = addSubClass("Button", e_1_1);
IWebDynproClassElement e_2 = addSubClass("RadioButton", root);
Now if you want to add "Caption" as subclass of "AbstractCaption" later, you have to find the context element that represents the "AbstractCaption" class and add it as above:
IWebDynproClassElement parent = find("AbstractCaption");
addSubClass("Caption", parent);
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- you provide a toolbar button to add a child node to the currently selected tree node (since 6.40)
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Table (dataSource = WebDynproClass)
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    //@@end
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Armin

How to define 'First Vsible row' for Tree table in Web Dynpro

Hi,
I am using a table with a treebykeytablecolumn. The user can change the selected
line from another view and then I change the selected line within the tree according to his choice. This works fine.
Unfortunatelly, I did not succeed to change the displayed page in the tree, so the user has to scroll up or down to see the selected data, if it is not on the current page.
I try to bind the 'FirstVisibleRow', using the index of the selected element, but this
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Looping at the node, my selected element get index 30, but the selected line is the 8th one (regarding what is current ly open or not in the tree) and the 14th if we expand all nodes above.
So, is there a way to specify which line to be the 1st visible one when there is a tree column?
thanks a lot for your help.
reagrds,
barbara

Follow these steps,
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2- go to the table properties in view and bind the property first_visible_row to this attribute.
3- NOw go to the wddoinit method of the view...
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DATA lo_nd_flag1 TYPE REF TO if_wd_context_node.
DATA lo_el_flag1 TYPE REF TO if_wd_context_element.
DATA ls_flag1 TYPE wd_this->element_flag1.
DATA lv_first_row LIKE ls_flag1-first_row.
* navigate from <CONTEXT> to <FLAG1> via lead selection
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    IMPORTING
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here change the lv_first_row to the index which you got after raeading the internal table.
suppose it's
lv_first_row = 4.
lo_el_flag1->set_attribute(
    EXPORTING
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Moving expanded tree nodes in a JTree

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DECLARE
htree ITEM;
node ftree.node;
state varchar2(30);
BEGIN
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htree := Find_Item('BLOCK17.T_POP'); -- Find the root node of the tree.
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WHILE NOT Ftree.ID_NULL(node) LOOP
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Best regards
Tarik

Using node_depth you would change
IF state = Ftree.COLLAPSED_NODE THENto
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Prompt LOV takes forever to expand the Node on Webi report based on BW Universe

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We have a Webi report migrated from 3.1 to our 4.1 (BI 4.1 SP2 P2) test environment.
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Hi,
I am trying to build a tree structure with information something like the following:
Country
State
City
I used the UI Element "Tree" and I was successful in building it. The only problem is that it supports only one column in each row like name.
I need multiple columns in each row like Name and population.
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KEY type string
PARENT type string
LOCATION type string
POPULATION type string (or "I" if you happen to have numbers only without a unit like "k" for "thousand").
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World 4 billion
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Message was edited by: Thomas Szuecs

Create Multiple dynamic Node in Web Dynpro Abap

Hi Friends,
I need your help.My object is to create Multiple dynamic dropdown UI element.I am able to create this dynamic Dropdown element. But i need to assign default different values to this dropdown elements.So i created dynamic nodes for each dropdown and created attribute with same name as that of value table.
My issue is its giving me error as : -
Lower-Level Node with Name ZDCN_BRD_STATUS.ME Does Not Exist
Help me to rectify this error..
Regards,
Santosh

Hi,
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Web Dynpro Tree expanding

Hi there!
I am using the tree element in web dynpro.
Not the tree in the table.
I need to expand a part of the tree during loading
I do not find an example.
Any help is warmly appreciated.
Thanks in advance, Frank

Hi,
the "dynamic" tree expansion depends on who you populate the tree content e.g. how you load the data to your tree.
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I don't have much time to explain the details, but I will provided the source code..., hope it helps!
Darko
Source Code -
Import to the Method:
i_node_ref type IF_WD_CONTEXT_NODE = Reference to the context node
METHOD nav_tree_expand_all.
Data declaration
DATA node_elements TYPE wdr_context_element_set.
DATA node_element LIKE LINE OF node_elements.
DATA child_node    TYPE REF TO if_wd_context_node.
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    ENDIF.
ENDLOOP.
RETURN.
Edited by: Darko Mocelj on May 7, 2008 8:57 PM

How to get a Tree Node Value when a Tree is Expanded

My reqiurement is when i Expand a Tree i need the Expanded tree Node Value. For Example Consider Parent as a Root Node of a Tree, and Consider its two Children Child1 and Child2.
When + Parent Expanded
I will Get the Output as --Parent
- Child1
- Child2
so As when i expand the Tree i must Get the String Value Parent.

duplicate
How to get a Tree Node Value when a Tree is Expanded

Expanding Tree nodes in Web Dynpro

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