JSF tree view GUI component and tree node actions

Hi,
I am new in using JSF and have a problem with my simple test application.
The application contains a tree view control with one static tree node and a separate text area. Clicking on the tree node shall fill the text area with the string 'hello'. Seems to be very simple, but it doesn't work.
What did I do?
First of all I use the Sun Java Studio Creator 2.
By double clicking on the tree node in the design window of the IDE a method called treeNode1_action() was created. I also added the String text to the session bean. treeNode1_Action() does not more than setting text='hello' ( getSessionBean().setText('hello'); ).
The jsp file contains the line
<ui:textArea binding="#{Page1.textArea}" id="textArea" style="height: 192px; left: 360px; top: 48px; position: absolute; width: 456px" text="#{SessionBean1.text}"/>, so the text of the text area is bound to the session property 'text'.
Running the application and clicking on the tree node does nothing except reloading the page (no 'hello' inside the text area).
Using the debugger showed me that the bean property text is set correctly to 'hello', also after reloading the page.
What did I do wrong?
What do I have to do to display 'hello' in the text area?
I would be glad for some good advice to solve my problem and looking forward for an answer.
Regards from germany
Matthias

want to remove the green patch from the jsf tree componentas u said ,, it is COMPONENET so this is a pre-made creator component that u cant chnage its attributes ,,
instead u can extract Theam.jar file and change the icons ,, u i didnt do it before ,, but u may be find what u want there,
hope this will help
good luck
Mohammed

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AutoScroll Tree View while searching a Tree Node

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Yes. rite i just found answer aftre posting the question
tree.scrollPathToVisible(path);

Htmlb:tree differentiate between nodeclick and tree node expander click

Hi,
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on node click call some client function.
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Regards
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Message was edited by: Durairaj Athavan Raja

After reading your weblog I think I understand better. I did some testing with my example. I am using the toggle = "true", so that the page returns to the server each time an expander is selected.
<htmlb:tree id          = "myTree1"
              height      = "75%"
              toggle      = "true"
              title       = "<b><otr>EQI Reporting Tree</otr></b>"
              width       = "90%"
              onTreeClick = "myTreeClick"
              table       = "<%= application->selection_model->itview                             %>" >
</htmlb:tree>
However I have not added any coding in my event handler to respond to the expander event. I only respond to myTreeClick (which loads some data for the given selection). The BSP tree element itself must be doing the hard work for me.
if event_id cs 'tr_myTree1'.
    data: tree_event type ref to cl_htmlb_event_tree.
    tree_event ?= htmlb_event.
    if tree_event->server_event = 'myTreeClick'.
      clear appl->message1.
      appl->selection_model->get_chart_data( appl = appl
                                             node = tree_event->node ).
    endif.
endif.
I pass my entire tree defintion to the element. It appears that it only sends visible nodes to be rendered. When the expander is selected, I don't have to do anything, the tree re-renders with only the newly visible rows.
I tested and turned off the toggle (toggle = "false") and my page took forever to load because it was sending all the nodes to the frontend on the first load.

Tree View through JSP and Java Script

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You can use the JSP Tree Tag I have developed. This helps you both structuring the tree model itself + it takes care of displaying the tree in a nice way. You can change all HTML code used to display the tree. Also you can build trees dynamically instead of just displaying static trees. Take a look at it here:
http://www.jenkov.dk/projects/treetag/treetag.jsp
Kind Regards,
Jakob Jenkov

How to blick tree view few specific nodes

here i got a code which show how to blink tree view node but i am confuse that how to blink few node.
Answered by:
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Treeview control - How to make a node blink?
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Hi,
Is there a "elegant" way to make blink a treeview node?
I am thinking to use a timer with the collection of nodes that I want to make the blink effect, and update the icon ...
Friday, November 06, 2009 6:19 PM
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Hi,
You can develop your custom control for this purpose. The logic you mentioned was correct. Here is a sample control that I developed by the logic you mentioned.
public class BlinkingTreeView : TreeView
private Timer t = new Timer();
private List<TreeNode> blinkingNodes = new List<TreeNode>();
public BlinkingTreeView()
t.Interval = 1000;
t.Tick += new EventHandler(t_Tick);
bool isNodeBlinked = false;
void t_Tick(object sender, EventArgs e)
foreach (TreeNode tn in blinkingNodes)
if (isNodeBlinked)
//update Icon
tn.Text = tn.Text.Substring(0, tn.Text.Length - 1);//to test
isNodeBlinked = false;
else
//update Icon
tn.Text = tn.Text + "*";//to test
isNodeBlinked = true;
public void AddBlinkNode(TreeNode n)
blinkingNodes.Add(n);
public void RemoveBlinkNode(TreeNode n)
blinkingNodes.Remove(n);
public void ClearBlinkNodes()
blinkingNodes.Clear();
public List<TreeNode> BlinkingNodes
get { return blinkingNodes; }
public int BlinkInterval
get { return t.Interval; }
set { t.Interval = value; }
public void StartBlinking()
isNodeBlinked = false;
t.Enabled = true;
public void StopBlinking()
t.Enabled = false;
just show me how to use BlinkingTreeView class. i will have tree view which will have few node and few nodes may have few child nodes. now how to achieve by this class BlinkingTreeView and show me how to blink few specific node not all. thanks

better to come with code. first populate tree view with some dummy node this way
Root
       Child1
                Child1-sub1
                Child1-sub2
       Child2
                Child2-sub1
                Child2-sub2
now blink Child1-sub2 & Child2-sub1. please come with code. thanks

Tree and Tree Node Components - Threadinar7

Hi All,
This is the seventh in the "Threadinar" series , please see Threadinar6 at
http://forum.sun.com/jive/thread.jspa?threadID=100601 for details
In this Threadinar we will focus on the
"Tree" and "Tree Node" Components
Let us begin our discussion with the Tree Component.
Tree Component
You can drag the Tree component from the Palette's Basic category to the Visual Designer to create a hierarchical tree structure with nodes that can be expanded and collapsed, like the nodes in the Outline window. When the user clicks a node, the row will be highlighted. A tree is often used as a navigation mechanism.
A tree contains Tree Node components, which act like hyperlinks. You can use a Tree Node to navigate to another page by setting its url property. You can also use a Tree Node to submit the current page. If the the Tree Node's action property is bound to an action event handler, selecting the node automatically submits the page. If the Tree Node's actionListener property is bound to an action listener, opening or closing the node automatically submits the page. You set Tree Node properties in the Tree Node Component Properties window.
* If you use this component to navigate between pages of a portlet, do not use the url property to link to a page. Instead, use the Navigation editor to set up your links to pages.
* Events related to tree node selection do not work correctly in portlets because the component uses cookies to pass the selected node id back and forth, and cookies are not correctly handled by the portlet container. You cannot handle tree node selection events in portlet projects.
Initially when you drop a tree on a page, it has one root node labeled Tree and one subnode labeled Tree Node 1. You can add more nodes by dragging them to the tree and dropping them either on the root node to create top level nodes or on existing nodes to create subnodes of those nodes. You can also right-click the Tree or any Tree Node and choose Add Tree Node to add a subnode to the node.
Additionally, you can work with the component in the Outline window, where the component and its child components are available as nodes. You can move a node from level to level easily in the Outline window, so you might want to work there if you are rearranging nodes. You can also add and delete tree nodes in the Outline window, just as in the Visual Designer.
The Tree component has properties that, among other things, enable you change the root node's displayed text, change the appearance of the text, specify if expanding or collapsing a node requires a trip to the server, and specify whether node selection should automatically open or close the tree. To set the Tree's properties, select the Tree component in your page and use the Tree Component Properties window.
The following Tutorial ("Using Tree Component") is very useful to learn using Tree components
http://developers.sun.com/prodtech/javatools/jscreator/learning/tutorials/2/sitemaptree.html
See Also the Technical Article - "Working with the Tree Component and Tree Node Actions"
http://developers.sun.com/prodtech/javatools/jscreator/reference/techart/2/tree_component.html
Tree Node Component
You can drag the Tree Node component from the Palette's Basic category to a Tree component or another tree node in the Visual Designer to create a node in a hierarchical tree structure, similar to the tree you see in the Outline window.
The tree node is created as a subnode of the node on which you drop it. If you drop the node on the tree component itself, a new node is created as a child of the root node. You can see the hierarchical structure clearly in the Outline window, where you can also easily move nodes around and reparent them.
You can also add a tree node either to a Tree component or to a Tree Node component by right-clicking the component and choosing Add Tree Node.
A Tree Node component by default is a container for an image and can be used to navigate to another page, submit the current page, or simply open or close the node if the node has child nodes.
* If you select the Tree Node component's node Tree Node icon in the Outline window, you can edit its properties in the Tree Node Properties window. You can set things like whether or not the Tree Node is expanded by default, the tooltip for the Tree Node, the label for the tree node, and the Tree Node's identifier in your web application.
* You can use a Tree Node to navigate to another page by setting its url property. You can also use a Tree Node to submit the current page. If the the Tree Node's action property is bound to an action event handler, selecting the node automatically submits the page. If the Tree Node's actionListener property is bound to an action listener, opening or closing the node automatically submits the page.
- Note: If you use this component to navigate between pages of a portlet, do not use the url property to link to a page. Instead, use the Navigation editor to set up your links to pages. In addition, events related to tree node selection do not work correctly in portlets because the component uses cookies to pass the selected node id back and forth, and cookies are not correctly handled by the portlet container. You cannot handle tree node selection events in portlet projects.
* If you select the image in the Tree Node, you can see that its icon property is set to TREE_DOCUMENT. If you right-click the image on the page and choose Set Image, you can either change the icon to another one or choose your own image in the Image Customizer dialog box. For more information on working with an image in a tree node, see Image component.
- Note: The image used in a tree node works best if it is 16x16 or smaller. Larger images can work, but might appear overlapped in the Visual Designer. You can right-click the component and choose Preview in Browser feature to check the appearance of the images.
Please share your comments, experiences, additional information, questions, feedback, etc. on these components.
------------------------------------------------------------------------------- --------------------

One challenge I had experience was to make the tree
always expanded on all pages (I placed my tree menu
in a page fragment so I can just import it in my
pages).Did you solve this problem. It would be interesting to know what you did.
To expand a node you call setExpanded on the node. Here is some code from a tutorial that a coworker of mine is working on.
In the prerender method:
       Integer expandedPersonId = getRequestBean1().getPersonId();
         // If expandedPersonId is null, then we are not coming back
        // from the Trip page. In that case we do not want any trip
        // nodes to be pre-selected (highlighted) due to browser cookies.
        if (expandedPersonId==null) {
            try {
                HttpServletRequest req =(HttpServletRequest)
                getExternalContext().getRequest();
                Cookie[] cookies = req.getCookies();
                //Check if cookies are set
                if (cookies != null) {
                    for (int loop =0; loop < cookies.length; loop++) {
                        if (cookies[loop].getName().equals
                                ("form1:displayTree-hi")) {
                            cookies[loop].setMaxAge(0);
                            HttpServletResponse response =(HttpServletResponse)
                            getExternalContext().getResponse();
                            response.addCookie(cookies[loop]);
            } catch (Exception e) {
                error("Failure trying to clear highlighting of selected node:" +
                        e.getMessage());
        }                  ... (in a loop for tree nodes)...
                  personNode.setExpanded(newPersonId.equals
                                (expandedPersonId));In the action method for the nodes:
       // Get the client id of the currently selected tree node
        String clientId = displayTree.getCookieSelectedTreeNode();
        // Extract component id from the client id
        String nodeId = clientId.substring(clientId.lastIndexOf(":")+1);
        // Find the tree node component with the given id
        TreeNode selectedNode =
                (TreeNode) this.getForm1().findComponentById(nodeId);
        try {
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            Integer tripId = Integer.valueOf(selectedNode.getId().substring(4));
            getRequestBean1().setTripId(tripId);
        } catch (Exception e) {
            error("Can't convert node id to Integer: " +
                    selectedNode.getId().substring(4));
            return null;
It would also be great if I can set the tree
readonly where the user cannot toggle the expand
property of the tree (hope this can be added to the
tree functionality).

Post Back Tree view when tree node check changed

Hi everyone,
I have a tree view, both child and parent have check box. I want to check all the child on the parent selection.
I try "SelectedNodeChanged" but the page doesn't post back to fire my function.
I know I can use javascript to post back the page, but is there any other way to post back my page without javascript???
Thnaks in advance.

Hi everyone,
I have a tree view, both child and parent have check box. I want to check all the child on the parent selection.
I try "SelectedNodeChanged" but the page doesn't post back to fire my function.
I know I can use javascript to post back the page, but is there any other way to post back my page without javascript???
Thnaks in advance.
Assuming this is a WinForm application (it looks like it may not be), the following works pretty well:
Option Strict On
Option Explicit On
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, _
ByVal e As System.EventArgs) _
Handles MyBase.Load
With TreeView1
.CheckBoxes = True
.ShowLines = True
.ShowPlusMinus = True
.ShowRootLines = True
.ExpandAll()
End With
End Sub
' Updates all child tree nodes recursively.
Private Sub CheckAllChildNodes(ByVal treeNode As TreeNode, ByVal nodeChecked As Boolean)
Dim node As TreeNode
For Each node In treeNode.Nodes
node.Checked = nodeChecked
If node.Nodes.Count > 0 Then
' If the current node has child nodes, call the CheckAllChildsNodes method recursively.
Me.CheckAllChildNodes(node, nodeChecked)
End If
Next node
End Sub
' NOTE This code can be added to the BeforeCheck event handler instead of the AfterCheck event.
' After a tree node's Checked property is changed, all its child nodes are updated to the same value.
Private Sub node_AfterCheck(ByVal sender As Object, ByVal e As TreeViewEventArgs) Handles TreeView1.AfterCheck
' The code only executes if the user caused the checked state to change.
If e.Action <> TreeViewAction.Unknown Then
If e.Node.Nodes.Count > 0 Then
' Calls the CheckAllChildNodes method, passing in the current
' Checked value of the TreeNode whose checked state changed.
Me.CheckAllChildNodes(e.Node, e.Node.Checked)
End If
End If
End Sub
End Class
The reference for that is this MSDN document.
If you're looking for a true tri-state operation though, honestly you might want to look at some third-party controls.
I hope that helps. :)
Please call me Frank :)

Tree view in the Web UI

Hi Experts,
Can anyone of you give me the steps to create an TREE View in WebUI and also an standard component which has already implemented this logic.

Take a look at the following blog: /people/poonam.assudani/blog/2009/06/24/create-a-tree-view-display-in-crm-web-ui
There you will find out the necessary steps and the example of it.
Hope this helps.

Please Help(How to get RadioButtons in tree View)

Hi.
Sub/Requirement: How to implement RadioButtons in tree view with/without using xml file.
I have a requirement like this i want to display RadioButton in tree view.
I implemented tree same as which is given in sampleApplications.
In this sampleApplications they implemted tree by using xml file.
I also implemented tree by Generating xml file. In this xml file i get the values from the database. I am using <netui:tree > tag.
Is it possible to implement tree without using xml file. I need to generate tree Dynamically.
Please any one help me to come out with this solution.

The issue here is while you are retrieving all the details, you are consistently overwriting them in the request.setAttribute() call before you get to the JSP to display them.
Do you actually have a class/object called Student?
That object should have attributes for classes, subjects, teachers (all of which are lists apparently)
public class Student{
String name;
List classes;
List subjects;
List teachers;
// appropriate getter/setter methods
}Then you load each student, and populate its individual lists.
That lets you pass the list of students, each student having its own lists for display.
Hope this helps,
evnafets

Don't see parent and child nodes in tree control with switcher, enclose xml

Hi, i.m a novice for jdev 11.1.1.2,
i need to create a tree menu, but when i put the switcher + n°2 face whith link object, inside the tree and
run my application i don't see the node, but i see the bookmarks that collapease and expand Why ????
Thanks for your help
Gio
enclose xml for better clarification:
<?xml version='1.0' encoding='UTF-8'?>
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.1"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:af="http://xmlns.oracle.com/adf/faces/rich">
<jsp:directive.page contentType="text/html;charset=UTF-8"/>
<f:view>
<af:document id="d1">
<af:messages id="m1"/>
<af:form id="f1">
<af:panelStretchLayout id="psl1">
<f:facet name="center">
<af:panelGroupLayout layout="scroll"
xmlns:af="http://xmlns.oracle.com/adf/faces/rich"
id="pgl4">
<af:panelSplitter id="ps1" splitterPosition="156"
inlineStyle="width:534px;">
<f:facet name="first">
<af:panelGroupLayout layout="scroll"
xmlns:af="http://xmlns.oracle.com/adf/faces/rich"
id="pgl3">
<af:panelHeader text="panelHeader 1" id="ph1">
<f:facet name="context"/>
<f:facet name="menuBar"/>
<f:facet name="toolbar"/>
<f:facet name="legend"/>
<f:facet name="info"/>
<af:tree value="#{bindings.DepartmentsViewTree.treeModel}"
selectionListener="#{bindings.DepartmentsViewTree.treeModel.makeCurrent}"
rowSelection="single" id="t1" var="node">
<f:facet name="nodeStamp">
<af:switcher id="s1"
facetName="#{node.hierType.viewDefName}">
<f:facet name="DepartmentsView">
<af:panelGroupLayout id="pgl1">
<af:commandLink text="#{node}"
action="#{MainPageBean.departmentRegionLayout}"
id="cl1">
<af:setActionListener from="#{node.DepartmentId}"
to="#{pageFlowScope.TreeKey}"/>
</af:commandLink>
<af:commandLink text=" (Edit)"
action="createEdit" id="cl2">
<af:setActionListener from="#{node.DepartmentId}"
to="#{pageFlowScope.DeptTreeKey}"/>
</af:commandLink>
</af:panelGroupLayout>
</f:facet>
<f:facet name="EmployeesView">
<af:commandLink text="#{node}"
action="#{MainPageBean.employeeRegionLayout}"
id="cl3">
<af:setActionListener from="#{node.EmployeeId}"
to="#{pageFlowScope.TreeKey}"/>
</af:commandLink>
</f:facet>
</af:switcher>
</f:facet>
</af:tree>
</af:panelHeader>
</af:panelGroupLayout>
</f:facet>
<f:facet name="second">
<af:panelGroupLayout layout="scroll"
xmlns:af="http://xmlns.oracle.com/adf/faces/rich"
id="pgl2">
<af:region value="#{bindings.dynamicRegion1.regionModel}"
id="dynam1" partialTriggers="::t1"/>
</af:panelGroupLayout>
</f:facet>
</af:panelSplitter>
</af:panelGroupLayout>

</f:facet>
</af:panelStretchLayout>
</af:form>
</af:document>
</f:view>
</jsp:root>
Edited by: user595664 on 5-dic-2009 2.54
Edited by: user595664 on 5-dic-2009 2.57

Hi,
you need to provide the full naming for the facet names. So instead of DepartmentsView you provide mypackage.DepartmentsView where you replace mypackage with the package structure of the the ViewObject
Frank

Issue with Drag&Drop between table and tree component

I want to drag table rows and drop it on the tree node. I use following code to achieve this:
<af:table value="#{bindings.pricingObjects.collectionModel}"
var="row"
rows="#{bindings.pricingObjects.rangeSize}"
emptyText="#{bindings.pricingObjects.viewable ? 'No data to display.' : 'Access Denied.'}"
fetchSize="#{bindings.pricingObjects.rangeSize}"
selectionListener="#{workspaceBean.onTableSelect}"
rowBandingInterval="0" id="poTable"
partialTriggers=":::csTree :::cbRefresh"
columnStretching="column:c4"
displayRow="selected"
contentDelivery="immediate"
clientComponent="true"
binding="#{workspaceBean.table}"
rowSelection="multiple">
<af:dragSource actions="MOVE" defaultAction="MOVE" discriminant="rowmove"/>
</af:table>
<af:tree value="#{bindings.privateChangeSets.treeModel}"
var="node" displayRow="selected"
selectionListener="#{workspaceBean.onTreeSelect}"
rowSelection="single" id="csTree"
expandAllEnabled="false"
binding="#{workspaceBean.tree}">
<af:dropTarget dropListener="#{workspaceBean.dropListener}" actions="MOVE">
<af:dataFlavor flavorClass="org.apache.myfaces.trinidad.model.RowKeySet"
discriminant="rowmove"/>
</af:dropTarget>
</af:tree>
With this code I am getting the data of dragged rows but I am not able to get the tree node where rows are dropped. Dropevent.getDropSite() always returns NULL.
Strangely, I tried to use deprecated tags <af:collectionDragSource> and <af:collectionDropTarget> and everything works fine. Dropevent.getDropSite() returns me the correct rowkey of tree node.
Any idea why am I not getting desired result with <af:dropTarget>?

Hi,
+" Please note that dropSite==null is a legal value for collection components. dropSite=null and DropOrientation==ON indicates that the drop has happened outside the data portion of the collection component and should be treated as a drop on the entire component Also note that dropSite==null and DropOrientation==AFTER indicates that the drop has happened on an empty collection component and the user intends to append the data."+
http://download.oracle.com/docs/cd/E17904_01/apirefs.1111/e10684/oracle/adf/view/rich/event/DropEvent.html#getDropSite__
List dropRowKey = (List) dropEvent.getDropSite();
        //if no dropsite then drop area was not a data area
        if(dropRowKey == null){
            return DnDAction.NONE;
        }Frank
Edited by: Frank Nimphius on Feb 18, 2011 11:18 PM

Help! can i get a tree view component used in jsp ,urgent!!

hello all
can i get a tree view component can be used in jsp ,it gets children data from database only when user expand one node, and it must be able to add nodes or removes node by user,so i can do some post handler in my database.
regards!

Where did you get this tree view component?

How to have a tree view for value node..

Hi all,
I need to display a tree view for a value node in web ui just like a model node, for a custom view in a pop up. Please guide me how to do this or let me know the process steps.
Thanks in advance.

Hi All,
while debugging I found that in class CL_BSP_WD_CONTEXT_NODE_TREE , the method GET_T_TABLE the below code is not triigerring for the child node attributes ( to trigger the get method of attribute for value node).
this call method is not triggering at all only for first coulmn its triggering ..
LV_TN ?= ME->NODE_MAPPER->GET_NODE_OBJECT( <LINE>-NODE_KEY ).
    CONCATENATE 'GET_' COMPONENT INTO LV_METHOD.
    TRY.
        CALL METHOD LV_TN->(LV_METHOD)
          EXPORTING
            ATTRIBUTE_PATH = ''
          RECEIVING
            VALUE          = VALUE.
      CATCH CX_ROOT INTO LV_ERROR.
I created the GETTER method inthe class CN01 and CN02. But those methods are not triggered in CALL METHOD LV_TN->(LV_METHOD). Even that class CN02 is having the same methods. Those methods are already Implemented. May I know what was the reason Why those methods are not triggered ( getter method ). With out that Method data will not display in the Tree view. Can anybody tell me the reason why it is not happenning?
.Please find the below .HTM code as well.
<chtmlb:configTree
                      actionsMaxInRow       = "5"
                   id             = "Table1"
                   nodeTable      = "<%= ZTREEVIEW->node_tab %>"
                   table          = "//ZTREEVIEW/Table"
                   noFrame        = "FALSE"
                   personalizable = "TRUE"
                   onCollapseNode = "NODECOLLAPSE"
                   selectionMode = "MULTILINEEDIT"
                   onExpandNode   = "NODEEXPAND"
                   onRowSelection = "select" />
Only one column was triggered another column did not get any value becasue of the above method call fail.. We are not restricted anywhere to display one column value in the output.   Even in Debugging I checked that LV_METHOD is having the method name. CN02 class is also having the same method, But it is not going into the method. It is coming out side. What could be the reason I could not able to understnad.
Please provide me some pointers on the issue....
Thanks in advance..

Tree view control - populating speed - over 100 nodes

I have a few questions about a tree view control:
1. If you put more than approximately 100 nodes in a tree, it populates too slow. There is no change if you try with query or record group. I figured that the populating of the record group makes all problems, but there is no chance to enlarge the array siye of the record group. Developer 6 has some built-ins which can do that, bu after many unsuccesful tries I don't see a solution.
I tried to make fetches from cursor into a record group (30 nodes on a "page", but it looses a real hierarchy and you should do a lot of programming). If anybody knows how to make the population of the tree faster or have some template / please forward.
2. After we put the patch 5 of developer6, tree view control is totally unpredictable. Usually its when you programmaticaly try to select a node (ftree.set_tree_selection)...Anybody have the same problems?

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Natasa Stojovska ([email protected]):
I have a few questions about a tree view control:
1. If you put more than approximately 100 nodes in a tree, it populates too slow. There is no change if you try with query or record group. I figured that the populating of the record group makes all problems, but there is no chance to enlarge the array siye of the record group. Developer 6 has some built-ins which can do that, bu after many unsuccesful tries I don't see a solution.
I tried to make fetches from cursor into a record group (30 nodes on a "page", but it looses a real hierarchy and you should do a lot of programming). If anybody knows how to make the population of the tree faster or have some template / please forward.
<HR></BLOCKQUOTE>
Try taking out the 'start with' and 'connect by' clauses in your select statement if you're using them. However, this will mean that you will have to determine the levels of the tree manually and ensure that the data comes out in the same order each time you execute the select statement.
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JSF tree view GUI component and tree node actions

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