Hierachical tree - Highlight particular node's in Tree

Is there any way to bold or change the colour of particular nodes in a tree?
We know and use the node icon to distinguish between them but ideally would want to bold some to highlight areas
I can not see how to do this looking at the documentation but may be wrong.
Thanks

Thanks thats what i thought but hoped i was wrong.

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Selecting/highlighting a node in Flex Tree using HierarchicalCollectionView as DataProvider

Hi,
I am using GroupingCollection2 as the dataprovider for HierarchicalCollectionView. The GroupingCollection2 takes its data from an ArrayCollection. And finally I have a Tree whose dataprovider is the HierarchicalCollectionView . I want to acheive 2 things:
1) I want to programatically select/highlight a node in this tree. Using expandItem and passing the Object from the arraycollection is not working.
2) Refresh the tree if there is a change in the arrayCollection.
For the second task, I have a Java Layer that gives me the ArrayCollection (dp for GroupingCollection2) when I fire a CairngormEvent. But the problem is that every node in the tree is duplicated. I can clearly see that say there are 8 items in the array collection but still the tree shows 16 items ( Each item duplicated as the node in the tree.)
I have been trying to figure this out for many days now without any luck. Any sort of suggestion would be appreciated.
Thank u in advance.

I got the refreshing of the tree part by myself. One needs to call the refresh method on the GroupingCollection2 and HierarchicalCollectionView objects when the arraycollection has just arrived from the database.
But I still havent been able to figure out how to highlight or open a tree node programatically. I am repeating that using (calling / setting) tree.expandItem() and tree.openItems is not helping me. Plz somebody help.

To change Font of a Particular Node in a tree structure

IS there any way to set Visual attribute property to a particular node_lable on Heirachical tree Structure.
e.g.
Main Office has Two Branch Offices(Office1 and Office2). and Office1 has Three Sub Branches(sub1,sub2 and sub3).If I am working from Office1, and I want to print Organisation Structure with Office1 with font_weight as Bold.

Enhancements IF applied they will be available only in new releases of Forms, which probably be 11i. It's not possible to have it in Forms 6i.
Froms 6i it's already out of support (has minimum support I think).
Regards,
Tony

How to highlight a node in a tree?

i used setSelectionPath() . But it is highlighting the node's icon only(i.e by changing the color to lavender). I'm getting higlighted the node with setSelectionInterval(ind,ind) only. I want that higlighlighting to be with setselectionPath() . How to do?
Appreciating any help
Thanks.

When I do a setSelectionPath the node-text is highlighted, not the icon. Anyways, do a custom treecellrenderer like this:
public Component getTreeCellRendererComponent(.......) {
if(selected == true) setBackground(somecolor)
else setBackground (defaultcolor)
if that describtion isnt sufficient try search the forum.

How to select a particular node in a tree?-want suggestions urgent

i've to make a tree showing "c:\" folder structure of the system. Initially i'm adding the folders in c:\ only tothe tree. And i'm adding the subfolders when ever i select a particular folder. I'm opening the subfolders and inner subfolders of it and so inside like that. now i'm closing the window . i want the tree to reopen with the previously opened level when ever i again run the program. On closing i'm storing the last selected node using tree.getMaxSelectionPath() . And on reopen i'm setting it as tree.setSelectionPath(tree.getMaxSelectionPath()).
But it is not opening the entire path. it is opening uptop one level only. what to do. Needs suggestion urgently.
Thnaks for suggestons.

Hi again,
I am sorry, I cannot help in another way than looking at the documentation, because I have currently no JDK available here. If expandPath(...) doesn't work, you can try to get all the nodes of that path and expand them from the root node downwards, perhaps that will work.
greetings Marsian

How to disable "Expand All" and "Collapse All" when no node in a tree

I have a <af:tree> inside <af:panelCollection>.
All items under viewMenu like "Expand", "Expand All Below", "Collapse All Below", "Expand All" , "Collapse All", "Scroll to First" and "Scroll to Last" are implemented by default.
When there is no node in a tree, "Expand", "Expand All Below", and "Collapse All Below" are grey out.
However, "Expand All" , "Collapse All", "Scroll to First" and "Scroll to Last" are still enabled to be clicked.
Is there any way we can diable them when no node?

When I highlight last node in the tree and all nodes are collapsed, I see "Expand All Below" enabled but "Collapse All Below" disabled. Which is expected. Expand All Below will expand all the child nodes under a node.
QA filed a bug said that "Expand All Below" should be disabled since no node below it. However, I don't find any place to control them. Can you confirm this? Or you know some way to do this?It it not a bug then. You don't have to control it and framework takes care of enabling and disabling it accordingly.
If you need to expand all the nodes programatically, check this out.
http://www.oracle.com/technetwork/developer-tools/adf/learnmore/78-man-expanding-trees-treetables-354775.pdf
-Arun

How to disable disclosureClosedIcon on a tree for a particular node ?

How can I selectively disable the disclosureClosedIcon in front of a particular tree node and leave the other tree nodes unaffected. If I do myTree.setStyle("disclosureClosedIcon",null);
Then the whole tree is affected. Please look at the code below.
<?xml version="1.0" encoding="utf-8"?>
<?xml version="1.0" encoding="utf-8"?>
<mx:Application
xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:Script>
<![CDATA[
import mx.events.ListEvent;
import mx.controls.Alert;
import mx.events.TreeEvent;[
Bindable]
public var selectedNode:XML;
public function myTreeOpening(event:TreeEvent):void {
//How to do the following selectively just for one node. For example if I want to just disable
//further opening of "Marketing" node and leave the other two
Alert.show(
"Trying to disable the disclosureClosedIcon just for the Marketing node");
//myTree.setStyle("disclosureClosedIcon",null);
]]>
</mx:Script>
<mx:XML
id="treeData">
<node label="Mail Box">
<node label="Inbox">
<node label="Marketing">
<node label="Professional"/>
<node label="Individual"/>
<node label="team"/>
</node>
<node label="Product Management">
<node label="Professional"/>
<node label="Individual"/>
<node label="team"/>
</node>
<node label="Sales">
<node label="Professional"/>
<node label="Individual"/>
<node label="team"/>
</node>
</node>
</node>
</mx:XML>
<mx:Panel
title="Tree Control Example" height="75%" width="75%" paddingTop="10" paddingLeft="10" paddingRight="10" paddingBottom="10">
<mx:Label width="100%" color="blue" text="Select a node in the Tree control."/>
<mx:Tree id="myTree" width="50%" height="100%" labelField="@label" showRoot="
false" dataProvider="{treeData}" itemOpening="myTreeOpening(event)"/>
</mx:Panel>
</mx:Application>

Thank you
but I don't want to modify the underlying xml data by adding isBranch on the node. I just want to modify the display of the data on Tree. The reason is that the xml data is retrieved from database and I can not modify the XML.

Highlight selected node in tree

I have a tree in the left, representing my companyÂ´s departments structure and in the right, when clicked, I show the employees that are subject to that department.
IÂ´ve noticed thereÂ´s no visual nor code (id, class, nothing) difference between the currently selected node of a tree and the others.
ThereÂ´s a way to do that? I thought about using js, but the only way a see to do that is using a regex in the link text of that node, comparing to the variable that that was passed to the page.
Someone?
Thanks

Trees currently donât have a concept of a âcurrentâ node. You could try using lists instead; though they wonât be query based, they would have to have static values. And in the current 1.6 version you canât have hierarchical lists, though that will be added in 2.0.
Marc

How can I update the children after updating a node in a tree?

Hi everyone.
I'm trying to update a subtree programatically while using a managed bean as data source.
All topics I can find are about using VOs and JUCtrlHierNodeBinding.updateValuesFromRows.
Now I need to find some way to directly update nodes without any Row. What should I do?
Here's the code:
tags:
                                <af:tree id="tframe" initiallyExpanded="true"
                                         selectionListener="#{backingBeanScope.systemDataFrameBB.onSelectNode}" var="n"
                                         binding="#{backingBeanScope.systemDataFrameBB.tframe}"
                                         value="#{systemDataFrameMB.treeData}" expandAllEnabled="true"
                                         rowSelection="single" fetchSize="-1" contentDelivery="immediate"
                                         immediate="true" summary="summary">
                                    <f:facet name="nodeStamp">
                                                  <af:group>
                                                  <af:outputText value="#{n.is_system?'[SYSTEM]':''}" />
                                                  <af:outputText value="#{n.is_use?'':'[X]'}" />
                                                                 <af:outputText value="#{n.data_frame_name}"/>
                                                  </af:group>
                                    </f:facet>
                                </af:tree>
managed bean(systemDataFrameMB):
     private ChildPropertyTreeModel treeData;
     public ChildPropertyTreeModel getTreeData() throws SQLException
          if (this.treeData == null)
               AuthAMImpl authAM = this.getAppModule();
               List<DataFrameNode> subTrees = authAM.getDataFrameTrees();    // load with JDBC and POJO
               DataFrameNode root = new DataFrameNode();      // insert all sub-trees into a new tree
               root.setData_frame_id(0);
               root.setData_frame_name("[ROOT]");
               root.setParent_data_frame_id(Integer.MIN_VALUE);
               root.setIs_system(true);
               root.setIs_use(true);
               if (subTrees != null && subTrees.size() > 0)
                    root.setChildren(subTrees);
                    for (DataFrameNode n : subTrees)
                         n.setParent(root);
               this.treeData = new ChildPropertyTreeModel(root, "children");      // I guess this is the simplest way to show hierachical data...
          return this.treeData;
model:
public class DataFrameNode
     private int data_frame_id;
     private String data_frame_name;
     private int parent_data_frame_id;
     private boolean is_use;
     private boolean is_system;
     private DataFrameNode parent;
     private List<DataFrameNode> children;
        // getters/setters are omitted....
backing bean(systemDataFrameBB):
        // edit event handler
     public void onEditResult(DialogEvent de)
          String name = (String)this.getItName().getValue();
          boolean isUse = this.getSbcIsUse().isSelected();
          SystemDataFrameMB dfMB = (SystemDataFrameMB)JSFUtils.resolveExpression("#{systemDataFrameMB}");
          try
               node.setData_frame_name(name);
               node.setIs_use(isUse);
               dfMB.updateNode(node);                   // persist changes, this method will change all the children's 'is_use' field to FALSE when isUse == FALSE
               AdfFacesContext.getCurrentInstance().addPartialTarget(this.getTframe());      // refresh the tree, only the edited node will be updated, but I want the tree to update the whole sub-tree to reflect the change on all its children
          catch (Exception e)
                        // omitted...
        }

I solved the problem using RichTree.visitChildren :)
Maybe not the proper way, but at least it works...
                                <af:tree id="tframe" initiallyExpanded="true"
                                         selectionListener="#{backingBeanScope.systemDataFrameBB.onSelectNode}" var="n"
                                         binding="#{backingBeanScope.systemDataFrameBB.tframe}"
                                         value="#{systemDataFrameMB.treeData}" expandAllEnabled="true" rendered="true"
                                         rowSelection="single" fetchSize="-1" contentDelivery="immediate"
                                         immediate="true" clientComponent="true" summary="summary">
                                    <f:facet name="nodeStamp">
                                        <af:panelGroupLayout id="tg">
                                            <af:clientAttribute name="node_path" value="#{n.node_path}"/>
                                            <af:outputText id="tIsSystem" value="#{n.is_system?'[SYSTEM]':''}"/>
                                            <af:outputText id="tIsUse" value="#{n.is_use?'':'[X]'}"/>
                                            <af:outputText value="(#{n.data_frame_id})#{n.data_frame_name}"/>
                                        </af:panelGroupLayout>
                                    </f:facet>
                                </af:tree>
private static final String PARENT_NODE_PATH = "PARENT_NODE_PATH";
// all nodes should have a 'node_path' property whose value looks like 'id1/id2/id3'
// keep path on view root
FacesContext.getCurrentInstance().getViewRoot().getAttributes().put(PARENT_NODE_PATH, node.getNode_path());
// visit the whole tree to find specified nodes
VisitContext vc = VisitContext.createVisitContext(FacesContext.getCurrentInstance());
RichTree.visitChildren(vc, this.getTframe(), new VisitCallback()
          @Override
          public VisitResult visit(VisitContext visitContext, UIComponent uIComponent)
               if (uIComponent instanceof RichPanelGroupLayout &&
                    visitContext.getFacesContext().getCurrentPhaseId().equals(PhaseId.INVOKE_APPLICATION))
                    String parentPath = (String)visitContext.getFacesContext().getViewRoot().getAttributes().get(PARENT_NODE_PATH);
                    if (parentPath != null & parentPath.length() > 0)
                         // if current node is in the sub-tree then update its state
                         String path = (String)uIComponent.getAttributes().get("node_path");
                         if (path != null && path.length() > parentPath.length() && path.charAt(parentPath.length()) == '/')
                              RichOutputText t = (RichOutputText)uIComponent.findComponent("tIsUse");
                              JSFUtils.refreshTarget(t);
               return VisitResult.ACCEPT;
     });there might be another solution which uses JavaScript:
I found out that the HTML tag ADF generated has a attribute like "id='0_1_2_3'", that means I can find the sub-tree with JavaScript.
But it was not tested 'cause I don't think it would be stable.
it looks like this:
StringBuffer clientId = new StringBuffer(node.getLevel_id() * 4);
while (node != null)
     clientId.insert(0, node.getData_frame_id());
     clientId.insert(0, '_');
     node = node.getParent();
JSFUtils.executeScript("disableSubTree('" + (clientId.length() > 0 ? clientId.substring(1) : clientId.toString()) +"')");
            <af:resource type="javascript">
              function disableSubTree(id)
                  // find the adfrichtree component and traverse it, trying to find the sub-tree and modify the nodes
            </af:resource>

Displaying a mixture of text and links in a single node of af:tree

Hi,
I want to display few links embedded in text as a node in <af:tree>.
For example, I want a single node in a tree to show three links with text - "Different type of email services are gmail, yahoomail,hotmail".
(gmail,yahoomail and hotmail are links)
Is there a good way of displaying this? I tried following options
1) I have a property named "linkText" in a bean instance mybean of MyBean.java. "linkText" contains required text and "a href" tags to display links. I used the following code in jsp page
<af:tree>
<f:facet name="nodeStamp">
<f:verbatim>
#{mybean.linkText>
</f:verbatim>
</f:facet>
</af:tree>
<f:verbatim> displays the EL expression as it is. I am not able to access the value.
2) I also tried to use <af:outputFormatted>. Though it supports "a href" tag, it does not support "target" attribute of the same tag.
Is there any other way of doing this?

A: Displaying a mixture of text and links in a single node of <af:tree>

On a related note ...is it possible to call a commandLink to call an existing java bean/function within an outputText?
For example:
Say I had an outputText that dumped a /etc/hosts file and I wanted to put in a command link to ping each host and pass the particular IP address to it. What would be the best method for doing that?
135.122.29.122 host1.me.com {color:#ff0000}_PingMeLink_
{color}135.122.29.117 host2.sd.me.com _{color:#ff0000}PingMeLink{color}_
So can I embed this in an outputText somehow or is there a better way to do this?
<af:commandLink text="PingMeLink"
action="#{NetworkController.PingAHost}"/>
Thanks for your help!

Deleting Nodes from XML Tree (JTree)

I have created a XML Tree(extended from JTree) using XNodes ( extended from DefaultMutableTreeNode)
After some insertions, i need to delete certain nodes from the XML Tree.. but after deletion, XNode will be null.
subroutine is as follows...
appreciates any advice
Thanx
private XNode RemoveExtraNode( XNode xNode ){
int child;
String nodeType;
XNode childNode=null;
if ( (child=xNode.getChildCount() ) > 0){
for(int i=0;i<child;i++){
childNode=(XNode)xNode.getChildAt(i);
     nodeType = childNode.getType();
     if(nodeType.equals("DTD") )
     childNode.removeFromParent();
}//end for (int i=1;i<child;i++)
}//endif((child=xNode.getChildCount())!=0)
return xNode;
}//RemoveExtraNode

Hi IKEDA
Thanx for the reply.
I have tried xNode.remove(childNode) b4 and it still return a null JTree.
Anyway fyi i discover i can delete last child of xNode and return the correct java tree. therefore to delete a node of my choice i simply insert its next sibling nodes in its place and delete that particular node when it becomes the last child.

Expanding Tree till Last Node, in one shot, in WebDynPro ABAP

Hi Colleagues,
I am working on this tree structure of technical objects where i need to Expand ALL the nodes of the tree in one click. Please let me know if this is posible.
Regards,
Anoop

Hi Anoop,
U have expand_node --> Use this method to expand a particular node
expand_nodes --> Use this method to expand a list of nodes
get_expanded_nodes -->This method returns a node table containing the keys of all expanded nodes
Check on to this link for further details hoe to implement inside ur coding.
http://help.sap.com/saphelp_erp2005/helpdata/en/1b/2a7536a9fd11d2bd6f080009b4534c/frameset.htm
Hope this helps u,
Regards,
Nagarajan.

How to eliminate empty node space from tree when rendered property is false

Hi
I have created a menu Tree for my ADF BC application while working in JDev 10.1.3.3.
I have tried two methods, first is by creating a menu model as discussed in example in ADF Developers Guide Book Section 19.2.1. Second by creating two view objects and creating the menu tree from my database table.
Depending on the logged in user I want to decide whether to show or not to show a menu tree option to the user. For this purpose I have implemented a function in a managed bean that calls a pl/sql stored procedure to decide if the user has access to a certain component. In first case I have set the rendered property of the menu item to #{menuTree.shown}, where shown is an attribute in the menu model whose value is properly set using java functions that call pl/sql function in turn. In second method, I have also tried to set the rendered property and calling a function that returns true or false based on if the user has access to the menu option.
Problem
When rendered property is returned as false, although the menu option is not displayed but an empty space is displayed in my tree and remaining nodes and/or menu options are displayed with an ugly gap.
How I can remove this unwanted gap, is there a way?
Regards,
Amir
1st option:
My menu tree:
<af:menuTree var="menuTree" value="#{menuModel.model}">
<f:facet name="nodeStamp">
<af:commandMenuItem text="#{menuTree.label}"
action="#{menuTree.getOutcome}"
_rendered="#{menuTree.shown}_"/>
</f:facet>
</af:menuTree>
2nd option:
<af:tree value="#{bindings.MainMenuView.treeModel}" var="node">
<f:facet name="nodeStamp">
<af:switcher facetName="#{node.hierType.name}">
<f:facet name="MainMenuViewNode">
<af:outputText value="#{node.Name}" _rendered="#{userInfo.mainNodeOk}"_ />
</f:facet>
<f:facet name="SubMenuViewNode">
<af:commandLink text="#{node.Name}" _rendered="#{userInfo.mainNodeOk}_">
<af:setActionListener from="#{node.destinationUrl}"
to="#{menuTree.getOutcome}"/>
</af:commandLink>
</f:facet>
</af:switcher>
Edited by: Amir Khan on Jan 12, 2009 8:54 PM

Hi,
if this reproduces in JDeveloper 10.1.3.4 then this sounds like a bug that you should file
Frank

How to not display nodes in a tree if Oracle roles are NOT used?

How to not display nodes in a tree if Oracle roles are NOT used?
We don't use Oracle DB roles to grant users access to Forms from the menu. We use a template and role system of our own. Basically a few tables with templates and roles.
We want to convert our normal Forms menu to a tree menu and one of our key requirements is that when the tree is populated ONLY nodes with programs (i.e. forms) he has been granted to execute is shown.
Since we don't use Oracle Roles how to do this in a tree?
I created a function to show/hide LEAF nodes, BUT problem is that there are sub-menu nodes showing even if the leaf-nodes under it has not being displayed. My function has suppressed it.
My tree query is like this:
SELECT
     t.status, LEVEL, t.label, t.icon, t.node VALUE
FROM
     tma_tree_menu t
WHERE
tma_authenticate_sys_chk_role(USER, t.node) = 1
CONNECT BY
     PRIOR t.node = t.master
START WITH
     t.MASTER IS NULL
ORDER SIBLINGS BY
t.position
The tma_authenticate_sys_chk_role will return 1 only if the user has access to the form under that node.
I tried the FTree functions in Forms but even that has nothing.
Any help would be greatly appreciated.
Edited by: Channa on Mar 17, 2010 6:49 AM

Would you share the source code? I guess what I need is how exactly you retreive the user credentials from the DB table and set that boolean variable.
and then how to condition it in UIX?

Runtime error while i add a node in ALV Tree in oops

i am adding a node to alv tree using oop am passing a work area and when i execute it is going for a dump and it says UC_OBJECTS_NOT_CONVERTIBLE
and the below where it is bold and italic it is where the dump is occuring
METHOD ADD_NODE.
FIELD-SYMBOLS: <TAB1> TYPE standard TABLE,
<wa> type any.
assign mt_outtab->* to <tab1>.
insert line in outtab
DATA: L_INDEX TYPE SY-TABIX.
if is_outtab_line is initial.
create initial line
data l_dref_wa type ref to data.
create data l_dref_wa like line of <tab1>.
assign l_dref_wa->* to <wa>.
l_index = 0.
append <wa> to <Tab1>.
else.
APPEND IS_OUTTAB_LINE TO <TAB1>. endif.
L_INDEX = SY-TABIX.
add node to model
CALL METHOD ME->ADD_MODEL_NODE
EXPORTING
I_RELAT_NODE_KEY = I_RELAT_NODE_KEY
I_RELATIONSHIP = I_RELATIONSHIP
IS_NODE_LAYOUT = IS_NODE_LAYOUT
IT_ITEM_LAYOUT = IT_ITEM_LAYOUT
I_NODE_TEXT = I_NODE_TEXT
I_INDEX_OUTTAB = L_INDEX
IMPORTING
E_NEW_NODE_KEY = E_NEW_NODE_KEY.
ENDMETHOD.

HI Mohsin,
please refer to the below ....
might be helpful for u .....
https://scn.sap.com/thread/2050188
http://scn.sap.com/message/6407195
http://r0005001.benxbrain.com/de%28bD1lbiZjPTAwMQ==%29/index.do?onInputProcessing=brai_thread&001_thread_id=1759814%20&001_temp=R3TR|PROG|RCSBI010||P01|
Hope thiw will help ....
Regards,
AKS

Hierachical tree - Highlight particular node's in Tree

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