Operations on Tree structures

Is scroll bar a must on tree items? Seems that I
could either have both, or none!
Is there a way such that when I expand the node
at the bottom of a tree, it will scroll down
automatically a distance enough to show the
last child node of the expanded node? Quite
frustrating everytime after I expand a tree node
such that its children are beyond the view, i have
to scroll down manually to look at them. I tried
playing around with viewport but didn't quite work.
Big big thanks!

I think that you can use When-Tree-Node-Expanded trigger and play with tree built-ins (FIND_TREE_NODE,SET_TREE_SELECTION ...).
It is just a tip ...
Helena

Similar Messages

Listing File Hierarchy in console using a Tree structure

first off i'm a college student. i'm not that good at java... we got this CA in class and try as i might i just can't get my head around it
i was wondering if someone who know a bit more about java then i do would point me in the right direction, were i'm going wrong in my code
i have to list out sub-files and sub-directorys of a folder (i.e. C:/test) to console using tree structure
like this
startingdir
dir1 //subfolder of startingdir
dir11 //subfolder of dir1
dir111 //subfolder of dir11
dir12 //subfolder of dir1
file1A // document on dir1
dir2 //subfolder of startingdir
Tree.java
import java.util.Iterator;
import java.util.LinkedList;
import java.util.ListIterator;
import java.util.NoSuchElementException;
import java.util.Deque;
public class Tree<E> {
    // Each Tree object is an unordered tree whose
    // elements are arbitrary objects of type E.
    // This tree is represented by a reference to its root node (root), which
    // is null if the tree is empty. Each tree node contains a link to its
    // parent and a LinkedList of child nodes
    private Node root;
    //////////// Constructor ////////////
    public Tree () {
    // Construct a tree, initially empty.
        root = null;
    //////////// Accessors ////////////
    public boolean isEmpty () {
    // Return true is and only if this tree is empty.
         return (root == null);
    public Node root () {
    // Return the root node of this tree, or null if this tree is empty.
        return root;
    public Node parent (Node node) {
    // Return the parent of node in this tree, or null if node is the root node.
        return node.parent;
    public void makeRoot (E elem) {
    // Make this tree consist of just a root node containing element elem.
        root = new Node(elem);
    public Node addChild (Node node, E elem) {
    // Add a new node containing element elem as a child of node in this
    // tree. The new node has no children of its own. Return the node
    // just added.
        Node newChild = new Node(elem);
        newChild.parent = node;
        node.children.addLast(newChild);
        return newChild;
    public E element (Node node) {
         return node.getElement();
    //////////// Iterators ////////////
    public Iterator childrenIterator (Node node) {
        return node.children.iterator();
    public Iterator nodesPreOrder () {
    // Return an iterator that visits all nodes of this tree, with a pre-order
    // traversal.
        return new Tree.PreOrderIterator();
    //////////// Inner classes ////////////
    public class Node {
        // Each Tree.Node object is a node of an
        // unordered tree, and contains a single element.
        // This tree node consists of an element (element),
        // a link to its parent
        // and a LinkedList of its children
        private E element;
        private Node parent;
        private LinkedList<Node> children;
        private Node (E elem) {
            // Construct a tree node, containing element elem, that has no
            // children and no parent.
            this.element = elem;
            this.parent = null;
            children = new LinkedList<Node>();
        public E getElement () {
        // Return the element contained in this node.
            return this.element;
        public String toString () {
        // Convert this tree node and all its children to a string.
            String children = "";
            // write code here to add all children
            return element.toString() + children;
        public void setElement (E elem) {
        // Change the element contained in this node to be elem.
            this.element = elem;
    public class PreOrderIterator implements Iterator {
        private Deque<Node> track; //Java recommends using Deque rather
        // than Stack. This is used to store sequence of nomempty subtrees still
        //to be visited
        private PreOrderIterator () {
            track = new LinkedList();
            if (root != null)
                track.addFirst(root);
        public boolean hasNext () {
            return (! track.isEmpty());
        public E next () {
            Node place = track.removeFirst();
            //stack the children in reverse order
            if (!place.children.isEmpty()) {
                int size = place.children.size(); //number of children
                ListIterator<Node> lIter =
                        place.children.listIterator(size); //start iterator at last child
                while (lIter.hasPrevious()) {
                    Node element = lIter.previous();
                    track.addFirst(element);
            return place.element;
        public void remove () {
            throw new UnsupportedOperationException();
    FileHierarchy.java
import java.io.File;
import java.util.Iterator;
public class FileHierarchy {
    // Each FileHierarchy object describes a hierarchical collection of
    // documents and folders, in which a folder may contain any number of
    // documents and other folders. Within a given folder, all documents and
    // folders have different names.
    // This file hierarchy is represented by a tree, fileTree, whose elements
    // are Descriptor objects.
    private Tree fileTree;
    //////////// Constructor ////////////
    public FileHierarchy (String startingDir, int level) {
        // Construct a file hierarchy with level levels, starting at
        // startingDir
        // Can initially ignore level and construct as many levels as exist
        fileTree = new Tree();
        Descriptor descr = new Descriptor(startingDir, true);
        fileTree.makeRoot(descr);
        int currentLevel = 0;
        int maxLevel = level;
        addSubDirs(fileTree.root(), currentLevel, maxLevel);
    //////////// File hierarchy operations ////////////
    private void addSubDirs(Tree.Node currentNode, int currentLevel,
            int maxLevel) {
    // get name of directory in currentNode
    // then find its subdirectories (can add files later)
    // for each subdirectory:
    //    add it to children of currentNode - call addChild method of Tree
    //    call this method recursively on each child node representing a subdir
    // can initially ignore currentLevel and maxLevel
        Descriptor descr = (Descriptor) currentNode.getElement();
        File f = new File(descr.name);
        File[] list = f.listFiles();
        for (int i = 0; i < list.length; ++i) {
            if (list.isDirectory()) {
File[] listx = null;
fileTree.addChild(currentNode, i);
if (list[i].list().length != 0) {
listx = list[1].listFiles();
addSubDirs(currentNode,i,1);
} else if (list[i].isFile()) {
fileTree.addChild(currentNode, i);
// The following code is sample code to illustrate how File class is
// used to get a list of subdirectories from a starting directory
// list now contains subdirs and files
// contained in dir descr.name
////////// Inner class for document/folder descriptors. //////////
private static class Descriptor {
// Each Descriptor object describes a document or folder.
private String name;
private boolean isFolder;
private Descriptor (String name, boolean isFolder) {
this.name = name;
this.isFolder = isFolder;
FileHierarchyTest.javapublic class FileHierarchyTest {
private static Tree fileTree;
public static void main(String[] args) {
FileHierarchy test = new FileHierarchy ("//test", 1);
System.out.println(test.toString());

Denis,
Do you have [red hair|http://www.dennisthemenace.com/]? ;-)
My advise with the tree structure is pretty short and sweet... make each node remember
1. it's parent
2. it's children
That's how the file system (inode) actually works.
<quote>
The exact reasoning for designating these as "i" nodes is unsure. When asked, Unix pioneer Dennis Ritchie replied:[citation needed]
In truth, I don't know either. It was just a term that we started to use. "Index" is my best guess, because of the
slightly unusual file system structure that stored the access information of files as a flat array on the disk, with all
the hierarchical directory information living aside from this. Thus the i-number is an index in this array, the
i-node is the selected element of the array. (The "i-" notation was used in the 1st edition manual; its hyphen
became gradually dropped).</quote>

Tree structure in f4 help

Hi experts,
can any one give me sample code for providing tree structure in f4help. like object part field have in iw21 transaction
Regards
reddy

Hi Muttukundu,
SAP has provided a lot of sample programs for developing tree structures. Just go to SE38, type BCALVTREE and hit F4. You'll get different sample programs with a range of operations on trees
Go through the link,
http://www.sapdevelopment.co.uk/reporting/alv/alvtree.htm
Slowly check this code..you will get idea of how to develop tree structure.
REPORT y_hierarchies_in_tables
NO STANDARD PAGE HEADING.
PARAMETER: g_group TYPE grpname. " DEFAULT 'Z_GLAB0000'.
DATA:
g_setid TYPE setid,
g_class TYPE setclass.
DATA: lt_hier TYPE STANDARD TABLE OF sethier,
lt_val TYPE STANDARD TABLE OF setvalues.
DATA: hier LIKE sethier OCCURS 0 WITH HEADER LINE,
val LIKE setvalues OCCURS 0 WITH HEADER LINE,
setinfo LIKE setinfo OCCURS 0 WITH HEADER LINE.
DATA: zaccbas(20) TYPE c OCCURS 0 WITH HEADER LINE.
DATA: miss_val LIKE setvalues-from OCCURS 0 WITH HEADER LINE.
DATA: table_name TYPE tabname,
field_name TYPE setfld.
DATA: ambiguity_flag TYPE c.
Ambiguity check
PERFORM ambiguity_check.
Display Records
PERFORM display_records.
*& Form AMBIGUITY_CHECK
Ambiguity check
FORM ambiguity_check .
DATA: it_abaplist LIKE abaplist OCCURS 0 WITH HEADER LINE.
DATA: BEGIN OF it_ascilist OCCURS 0,
zeile(256) TYPE c,
END OF it_ascilist.
DATA: flag.
SUBMIT rgsovl00 "VIA SELECTION-SCREEN
WITH p_shrtn = g_group
WITH path = 'X'
EXPORTING LIST TO MEMORY
AND RETURN.
CALL FUNCTION 'LIST_FROM_MEMORY'
TABLES
listobject = it_abaplist
EXCEPTIONS
not_found = 1
OTHERS = 2.
CALL FUNCTION 'LIST_TO_ASCI'
TABLES
listasci = it_ascilist
listobject = it_abaplist
EXCEPTIONS
empty_list = 1
list_index_invalid = 2
OTHERS = 3 .
LOOP AT it_ascilist.
IF it_ascilist-zeile = text-001.
flag = 'X'.
ENDIF.
IF flag = 'X' AND
it_ascilist-zeile = text-002.
ambiguity_flag = 'X'.
CLEAR flag.
ENDIF.
ENDLOOP.
FREE MEMORY.
ENDFORM. " AMBIGUITY_CHECK
*& Form DISPLAY_RECORDS
Display the Records
FORM display_records .
PERFORM get_records.
PERFORM header_data.
PERFORM item_data.
ENDFORM. " DISPLAY_RECORDS
*& Form GET_RECORDS
Get all the Node values
FORM get_records .
Get the ID name for the Hierarchy
CALL FUNCTION 'G_SET_GET_ID_FROM_NAME'
EXPORTING
shortname = g_group
setclass = g_class
old_setid = g_setid
IMPORTING
new_setid = g_setid.
Get the Table and Field name for the Top Node
CALL FUNCTION 'G_SET_GET_INFO'
EXPORTING
setname = g_setid
no_set_title = 'X'
use_table_buffer = 'X'
IMPORTING
info = setinfo.
table_name = setinfo-tabname.
field_name = setinfo-fld.
Get all the Nodes for the Hierarchy
CALL FUNCTION 'G_SET_TREE_IMPORT'
EXPORTING
no_descriptions = ' '
no_rw_info = 'X'
setid = g_setid
TABLES
set_hierarchy = lt_hier
set_values = lt_val.
hier[] = lt_hier.
val[] = lt_val.
SELECT (field_name) FROM (table_name) INTO TABLE zaccbas.
LOOP AT zaccbas.
READ TABLE val WITH KEY FROM = zaccbas.
IF sy-subrc = 0.
DELETE zaccbas.
CLEAR zaccbas.
DELETE val INDEX sy-tabix.
CLEAR val.
ENDIF.
ENDLOOP.
ENDFORM. " GET_RECORDS
*& Form HEADER_DATA
Header Data
FORM header_data .
DATA: desc TYPE settext.
READ TABLE hier WITH KEY fieldname = field_name
shortname = g_group.
IF sy-subrc = 0.
desc = hier-descript.
ENDIF.
SKIP.
WRITE: 'Node :',g_group.
WRITE:75 'User name :', sy-uname.
WRITE:/ 'Description :', desc.
WRITE:75 'Date:', sy-datum.
WRITE:/ 'Table Name :' , table_name.
WRITE:75 'Time:', sy-timlo.
WRITE:/ 'Field Name :', field_name.
write:75 'Client:', SY-MANDT.
skip.
IF ambiguity_flag = 'X'.
WRITE:/ 'Ambiguity Check :'. WRITE: 'Success' COLOR 5.
ELSE.
WRITE:/ 'Ambiguity Check :'. WRITE: 'Failed' COLOR 6 .
ENDIF.
WRITE:/ sy-uline.
WRITE:/37 'Validation for Hierarchy'.
WRITE:/ sy-uline.
ENDFORM. " HEADER_DATA
*& Form ITEM_DATA
Output Report for Nodes
FORM item_data .
IF NOT zaccbas[] IS INITIAL.
WRITE:/ 'Missing Records from Hierarchy' COLOR 3.
LOOP AT zaccbas.
WRITE:/ zaccbas.
ENDLOOP.
ENDIF.
IF NOT val[] IS INITIAL.
SKIP 1.
WRITE:/ 'Additional Records in Hierarchy' COLOR 3.
LOOP AT val.
WRITE:/ val-from. ", 28 val-DESCRIPT.
ENDLOOP.
ELSEIF ZACCBAS[] IS INITIAL.
WRITE:/ 'No Missing Records Found' COLOR 3.
ENDIF.
ENDFORM. " ITEM_DATA
Reward if found helpfull,
Cheers,
Chaitanya.

KMC Error- Internal Error in Tree Structure

Hi,
I am getting this error in my DefaultTrc.log file and am not able able to make out what it is coming for. I have installed EP6 SP9 with patches and KMC sp9 with patch2.
Also i have configured muliple LDAP servers for UME. The LDAP connection and user maintenance is working fine. But i get this error in my log files.
Also the installation is a distributed WebAS installation.
Here is the error i am getting
RegisterNode</Applications/KMC/Repository Framework/Components/Repository Managers/ume/Creation>: com.sap.mona.api.JMonException: com.sap.mona.api.JMonAPIException: Internal error in tree structure.
Can Anyone tell me if they are getting any such errors.
Any solutions?
Regards,
Hassan

Hi Hassan,
you might want to log a support message to SAP about this and (there as well as here) add information about the used LDAP technology and involved opereating systems.
Regards,
Karsten

How to create Tree Structure for given data?

Hi,
I have to create a tree structure of Folders and the contents in the Folder.
I have a XML, it contains data for the tree structure to display. How can I create a tree structure which would look like below
Parent
   Child
     Supporting Views
        Raw eInfotree Table Views
        Background Calculations
        QC Data Views
     Calculation Views
     Unit Operation Views
        Cell Culture Views
        Purification Views
        MFR Views
     Personal Views
All the nodes should have folder Icon.
Please find the XML as
<?xml version="1.0" encoding="UTF-8"?><Rowsets DateCreated="2007-05-02T07:37:37" EndDate="2007-05-02T16:59:53" StartDate="2007-05-02T16:59:53" Version="11.5.3"><Rowset><Columns><Column Description="" MaxRange="1" MinRange="0" Name="TK" SQLDataType="4" SourceColumn="TK"/><Column Description="" MaxRange="1" MinRange="0" Name="NAME" SQLDataType="1" SourceColumn="NAME"/><Column Description="" MaxRange="1" MinRange="0" Name="TYPE" SQLDataType="1" SourceColumn="TYPE"/><Column Description="" MaxRange="1" MinRange="0" Name="PK" SQLDataType="4" SourceColumn="PK"/></Columns>
<Row><TK>1</TK><NAME>Parent</NAME><TYPE>F</TYPE><PK>0</PK></Row>
<Row><TK>2</TK><NAME>Child</NAME><TYPE>F</TYPE><PK>1</PK></Row>
<Row><TK>3</TK><NAME>Supporting Views</NAME><TYPE>F</TYPE><PK>2</PK></Row>
<Row><TK>4</TK><NAME>Raw eInfotree Table Views</NAME><TYPE>F</TYPE><PK>3</PK></Row>
<Row><TK>5</TK><NAME>Background Calculations</NAME><TYPE>F</TYPE><PK>3</PK></Row>
<Row><TK>6</TK><NAME>QC Data Views</NAME><TYPE>F</TYPE><PK>3</PK></Row>
<Row><TK>7</TK><NAME>Calculation Views</NAME><TYPE>F</TYPE><PK>2</PK></Row>
<Row><TK>8</TK><NAME>Unit Operation Views</NAME><TYPE>F</TYPE><PK>2</PK></Row>
<Row><TK>9</TK><NAME>Cell Culture Views</NAME><TYPE>F</TYPE><PK>8</PK></Row>
<Row><TK>10</TK><NAME>Purification Views</NAME><TYPE>F</TYPE><PK>8</PK></Row>
<Row><TK>11</TK><NAME>MFR Views</NAME><TYPE>F</TYPE><PK>8</PK></Row>
<Row><TK>12</TK><NAME>Personal Views</NAME><TYPE>F</TYPE><PK>2</PK></Row>
</Rowset>
</Rowsets>

Vishal,
If you structure your data with two columns, the first being the Node name and the second being the Parent node name (see your information below), the iBrowser applet will make a nice data driven tree with all of the SelectionEvent or navigational capabilities you want.
<?xml version="1.0" encoding="UTF-8"?>
<Rowsets DateCreated="2007-05-02T07:37:37" EndDate="2007-05-02T16:59:53" StartDate="2007-05-02T16:59:53" Version="11.5.3">
<Rowset><Columns><Column Description="" MaxRange="1" MinRange="0" Name="NAME" SQLDataType="1" SourceColumn="NAME"/><Column Description="" MaxRange="1" MinRange="0" Name="PARENT" SQLDataType="1" SourceColumn="PARENT"/></Columns>
<Row><NAME>Parent</NAME><PARENT></PARENT></Row>
<Row><NAME>Child</NAME><PARENT>Parent</PARENT></Row>
<Row><NAME>Supporting Views</NAME><PARENT>Child</PARENT></Row>
<Row><NAME>Calculation Views</NAME><PARENT>Child</PARENT></Row>
<Row><NAME>Unit Operation Views</NAME><PARENT>Child</PARENT></Row>
<Row><NAME>Personal Views</NAME><PARENT>Child</PARENT></Row>
<Row><NAME>Raw eInfotree Table Views</NAME><PARENT>Supporting Views</PARENT></Row>
<Row><NAME>Background Calculations</NAME><PARENT>Supporting Views</PARENT></Row>
<Row><NAME>QC Data Views</NAME><PARENT>Supporting Views</PARENT></Row>
<Row><NAME>Cell Culture Views</NAME><PARENT>Unit Operation Views</PARENT></Row>
<Row><NAME>Purification Views</NAME><PARENT>Unit Operation Views</PARENT></Row>
<Row><NAME>MFR Views</NAME><PARENT>Unit Operation Views</PARENT></Row>
</Rowset>
</Rowsets>
Regards,
Jeremy

layout:treeview Closed tree structure?

HI,
I'm able to generate the tree view structure
but the problem is, when close & open the window , it is showing open tree structure
i want it to be close tree view
<layout:treeview expandedLevelsAtFirst="-1" >
     <logic:present name="agrovoc" >
     <logic:iterate id="agrovoc" name="agrovoc" scope="session">
               <c:set var="term" value="${agrovoc.AGTerm}" />
               <c:set var="bterm" value="${agrovoc.AGBTerm}" />
               <c:set var="nterm" value="${agrovoc.AGNTerm}" />
               <c:set var="rterm" value="${agrovoc.AGRTerm}" />
               <layout:menuItem key="${agrovoc.AGURI}" link="#" >
                    <logic:notEmpty name="bterm">
                    <layout:menuItem key="BroaderTerms">
                   <layout:menuItem key="${agrovoc.AGBURI}" link="#"/>
                   </layout:menuItem>
                   </logic:notEmpty>
                   <logic:notEmpty name="nterm">
                   <layout:menuItem key="NarrowerTerms">
                   <layout:menuItem key="${agrovoc.AGNURI}" link="#" />
                   </layout:menuItem>
                   </logic:notEmpty>
                   <logic:notEmpty name="rterm">
                   <layout:menuItem key="RelatedTerms">
                   <layout:menuItem key="${agrovoc.AGRURI}" link="#" />
                   </layout:menuItem>
                   </logic:notEmpty>
               </layout:menuItem>
     </logic:iterate>
     </logic:present>
     </layout:treeview>I'm using the above code, the tree structure in turn call the java script for tits operations
i even cleared the session object also, but no use..
how to solve this..?

Thanks a lot for the help so far, I've created a method to check the basePanel for any components it holds and try to create a JTree display from it. The code I currently have is :
     public void updateObjectSelector()
          // Setup the tree viewer
          DefaultMutableTreeNode root = new DefaultMutableTreeNode(basePanel.getClass());
          addChildren(root, basePanel);
          tree = new JTree(root);
     public void addChildren(DefaultMutableTreeNode root, JPanel parent)
          Component [] children = parent.getComponents();
          for(int i = 0; i < children.length; i++)
               DefaultMutableTreeNode child = new DefaultMutableTreeNode(children.getClass());
               try
                    addChildren(child, (JPanel) children[i]);
               catch(ClassCastException e)
               root.add(child);
basePanel and tree are both global variables. basePanel is the root Panel to which everything is added to.
I am calling "updateObjectSelector()" every time a component is added to the basePanel but at the moment all I can get displayed by the JTree is the getClass() of the basePanel, none of its children are being displayed. Can anyone see what I have done wrong here?
Many thanks again for all your help so far.

Rendering Tree Structure from nested Iterators

I am attempting to create a master-detail tree structure using nested iterators using JDeveloper 11.1.1.6.0. I have my data control set up and the master - child relation is set up using a view link.
The intent is to be able to have a form that results in the following basic design:
------------------|
parent 1 details
-child 1 details and operations
-child 2 details and operations
------------------|
parent 2 details
-child 3 details and operations
------------------|
Thus far when I've tried nested iterators using the data control, I instead get the following:
------------------|
parent 1 details
-child 1 details and operations
-child 2 details and operations
-child 3 details and operations
------------------|
parent 2 details
------------------|
-child 1 details and operations
-child 2 details and operations
-child 3 details and operations
------------------|
I've attempted to get this to work by using two completely seperate binding iterators, each tied to a different af:iterator in the following structure:
<af:iterator id="i1" value="#{bindings.parent.collectionModel} var="row" rows="#{bindings.parentIterator.rangeSize}">
<af:panelBox text="#{row.bindings.detail.inputValue}">
    <af:iterator id="i2" value="#{bindings.child.collectionModel}" var="row2" rows="#{bindings.childIterator.rangeSize}">
      <af:outputText value="#{row2.bindings.detail.inputValue}"/>
    </af:iterator>
</af:panelBox>
</af:iterator>However, this renders the above situation. I have not been ablue to figure out how to have the second iterator's values be dependant on the current row of the first iterator. I can get the organizational structure to work using an af:tree element and my data control. However, I cannot modify the look of the af:tree elements to match what is required by the customer, nor do I beleive that I could create the required functionality using it. Does anyone have any suggestions on how to get this to work?
Thank you
Edited by: user13468716 on May 15, 2012 6:23 AM

You can't use collectionModel for both the iterators. You will either need to create a treeBinding with a tree level rule and refer the first one as +#{bindings.<TreeBindingName>.treeModel}+ name it as row
and refer to the next iterator as #{row.<TreeLevelRuleName>}.
This will atleast create the stamping of the rows properly.Something like this -
<af:iterator id="i1" value="#{bindings.parent.treeModel} var="row" rows="#{bindings.parentIterator.rangeSize}">
<af:panelBox text="#{row.bindings.detail.inputValue}">
    <af:iterator id="i2" value="#{row.child}" var="row2" rows="#{bindings.childIterator.rangeSize}">
      <af:outputText value="#{row2.bindings.detail.inputValue}"/>
    </af:iterator>
</af:panelBox>
</af:iterator>where +parent+ is a treeBinding having +child+ as a tree level rule
Edited by: Sudipto Desmukh on May 15, 2012 6:57 PM

How to create a tree structure using forms.

Hi,
How do i create a tree structure using oracle forms,i have a table named Functions and a specific column 'Function Name' should be displayed in the tree nodes.Can anyone help me out on how to create a tree structure and populating the nodes??
thanks in advance
Regards
Karthik

The FTree package provides functions to populate the tree - look for the topic "Manipulating a hierarchical tree at runtime
" in the online help this point to all the functions and triggers

How to show alv report in tree structure

hi all,
how to show data or create a alv report in tree structure.
thanks in advance.
Harsha

Hi Harsha,
Its done using FM 'RS_TREE_CONSTRUCT'
and FM for displaying the tree: 'RS_TREE_LIST_DISPLAY'
Thanks
Shrila

How to get Text for nodes in Tree Structure

Hi Friends,
How to get Text for nodes in Tree Structure
REPORT YFIIN_REP_TREE_STRUCTURE no standard page heading.
                   I N I T I A L I Z A T I O N
INITIALIZATION.
AUTHORITY-CHECK OBJECT 'ZPRCHK_NEW' :
                  ID 'YFIINICD' FIELD SY-TCODE.
IF SY-SUBRC NE 0.
    MESSAGE I000(yFI02) with SY-TCODE .
    LEAVE PROGRAM.
ENDIF.
class screen_init definition create private.
Public section
public section.
    class-methods init_screen.
    methods constructor.
Private section
private section.
    data: container1 type ref to cl_gui_custom_container,
          container2 type ref to cl_gui_custom_container,
          tree type ref to cl_gui_simple_tree.
    methods: fill_tree.
endclass.
Class for Handling Events
class screen_handler definition.
Public section
public section.
    methods: constructor importing container
               type ref to cl_gui_custom_container,
             handle_node_double_click
               for event node_double_click
               of cl_gui_simple_tree
               importing node_key .
Private section
private section.
endclass.
*&                        Classes implementation
class screen_init implementation.
*&                        Method INIT_SCREEN
method init_screen.
    data screen type ref to screen_init.
    create object screen.
endmethod.
*&                        Method CONSTRUCTOR
method constructor.
    data: events type cntl_simple_events,
          event like line of events,
          event_handler type ref to screen_handler.
    create object: container1 exporting container_name = 'CUSTOM_1',
                   tree exporting parent = container1
                     node_selection_mode =
            cl_gui_simple_tree=>node_sel_mode_multiple.
    create object: container2 exporting container_name = 'CUSTOM_2',
    event_handler exporting container = container2.
event-eventid = cl_gui_simple_tree=>eventid_node_double_click.
    event-appl_event = ' '.   "system event, does not trigger PAI
    append event to events.
    call method tree->set_registered_events
         exporting events = events.
    set handler event_handler->handle_node_double_click for tree.
     call method: me->fill_tree.
endmethod.
*&                        Method FILL_TREE
method fill_tree.
    data: node_table type table of abdemonode,
          node type abdemonode.
types:    begin of tree_node,
          folder(50) type c,
          tcode(60) type c,
          tcode1(60) type c,
          tcode2(60) type c,
          text(60) type c,
          text1(60) type c,
          text2(60) type c,
          end of tree_node.
data: wa_tree_node type tree_node,
            t_tree_node type table of tree_node.
wa_tree_node-folder = text-001.
wa_tree_node-tcode = text-002.
wa_tree_node-text = 'Creditors ageing'.
wa_tree_node-tcode1 = text-003.
wa_tree_node-text1 = 'GR/IR aging'.
wa_tree_node-tcode2 = text-004.
wa_tree_node-text2 = 'Bank Balance'.
append wa_tree_node to t_tree_node.
clear wa_tree_node .
wa_tree_node-folder = text-005.
wa_tree_node-tcode = text-006.
wa_tree_node-text = 'Creditors ageing'.
wa_tree_node-tcode1 = text-007.
wa_tree_node-text1 = 'Creditors ageing'.
wa_tree_node-tcode2 = text-008.
wa_tree_node-text2 = 'Creditors ageing'.
append wa_tree_node to t_tree_node.
clear wa_tree_node .
wa_tree_node-folder = text-009.
wa_tree_node-tcode = text-010.
wa_tree_node-text = 'Creditors ageing'.
wa_tree_node-tcode1 = text-011.
wa_tree_node-text1 = 'Creditors ageing'.
wa_tree_node-tcode2 = text-012.
wa_tree_node-text2 = 'Creditors ageing'.
append wa_tree_node to t_tree_node.
clear wa_tree_node .
node-hidden = ' '.                 " All nodes are visible,
    node-disabled = ' '.               " selectable,
    node-isfolder = 'X'.                                    " a folder,
    node-expander = ' '.               " have no '+' sign forexpansion.
    loop at t_tree_node into wa_tree_node.
      at new folder.
        node-isfolder = 'X'.                      " a folder,
        node-node_key = wa_tree_node-folder.
               clear node-relatkey.
        clear node-relatship.
        node-text = wa_tree_node-folder.
        node-n_image =   ' '.
        node-exp_image = ' '.
        append node to node_table.
      endat.
     at new tcode .
        node-isfolder = ' '.                          " a folder,
        node-n_image =   '@CS@'.       "AV is the internal code
        node-exp_image = '@CS@'.       "for an airplane icon
        node-node_key = wa_tree_node-tcode.
         node-text = wa_tree_node-text .
                 node-relatkey = wa_tree_node-folder.
        node-relatship = cl_gui_simple_tree=>relat_last_child.
      endat.
      append node to node_table.
    at new tcode1 .
        node-isfolder = ' '.                          " a folder,
        node-n_image =   '@CS@'.       "AV is the internal code
        node-exp_image = '@CS@'.       "for an airplane icon
        node-node_key = wa_tree_node-tcode1.
                 node-relatkey = wa_tree_node-folder.
        node-relatship = cl_gui_simple_tree=>relat_last_child.
          node-text = wa_tree_node-text1.
     endat.
      append node to node_table.
       at new tcode2 .
        node-isfolder = ' '.                          " a folder,
        node-n_image =   '@CS@'.       "AV is the internal code
        node-exp_image = '@CS@'.       "for an airplane icon
        node-node_key = wa_tree_node-tcode2.
                 node-relatkey = wa_tree_node-folder.
        node-relatship = cl_gui_simple_tree=>relat_last_child.
        node-text = wa_tree_node-text2.
     endat.
      append node to node_table.
    endloop.
    call method tree->add_nodes
         exporting table_structure_name = 'ABDEMONODE'
                   node_table = node_table.
endmethod.
endclass.
*&                        Class implementation
class screen_handler implementation.
*&                        Method CONSTRUCTOR
method constructor.
   create object: HTML_VIEWER exporting PARENT = CONTAINER,
                  LIST_VIEWER exporting I_PARENT = CONTAINER.
endmethod.
*&                 Method HANDLE_NODE_DOUBLE_CLICK
method handle_node_double_click.
case node_key(12).
when 'Creditors'.
submit YFIIN_REP_CREADITORS_AGING via selection-screen and return.
when 'Vendor'.
submit YFIIN_REP_VENDOR_OUTSTANDING via selection-screen and return.
when 'Customer'.
submit YFIIN_REP_CUSTOMER_OUTSTANDING via selection-screen and
return.
when 'GR/IR'.
submit YFIIN_REP_GRIR_AGING via selection-screen and return.
when 'Acc_Doc_List'.
submit YFIIN_REP_ACCOUNTINGDOCLIST via selection-screen and return.
when 'Bank Bal'.
submit YFIIN_REP_BANKBALANCE via selection-screen and return.
when 'Ven_Cus_Dtl'.
submit YFIIN_REP_VENDORCUST_DETAIL via selection-screen and return.
when 'G/L_Open_Bal'.
submit YFIIN_REP_OPENINGBALANCE via selection-screen and return.
when 'Usr_Authn'.
submit YFIIN_REP_USERAUTHRIZATION via selection-screen and return.
endcase.
endmethod.
endclass.
Program execution ************************************************
load-of-program.
call screen 9001.
at selection-screen.
Dialog Modules PBO
*&      Module STATUS_9001 OUTPUT
      text
module status_9001 output.
set pf-status 'SCREEN_9001'.
set titlebar 'TIT_9001'.
call method screen_init=>init_screen.
endmodule.                 " STATUS_9001 OUTPUT
Dialog Modules PAI
*&      Module USER_COMMAND_9001 INPUT
      text
module user_command_9001 input.
endmodule.                 " USER_COMMAND_9001 INPUT
*&      Module exit_9001 INPUT
      text
module exit_9001 input.
case sy-ucomm.
when 'EXIT'.
set screen 0.
endcase.
endmodule.
        exit_9001 INPUT

you can read the table node_table with nody key value which imports when docubble click the the tree node (Double clifk event).
Regards,
Gopi .
Reward points if helpfull.

How to use ONE query to find out tree structure?

ID------------upperID----------Name------------------------isFolder
1------------ 0---------- Folder
1------------------------------------1
2------------ 1------------ Folder 1- Sub
Folder--------------------1
3------------ 2------------
Folder1-Item1-A--------------------------0
4------------ 1------------ Folder 1- Sub
Item-----------------------0
Hi all, if I have a table like above to demonstrate the
folders and item relationship. This structure allows the user to
create unlimited folders and items.
Now I would like to use one query to find out the tree
structure of this table, how could I do the query.
Any help on this will be highly appreciated!
Thanks,
ez

Also, see this thread:
http://www.adobe.com/cfusion/webforums/forum/messageview.cfm?forumid=1&catid=7&threadid=12 55788&enterthread=y

How to create a form on a tree structured table

Hi,
I have a table that is designed to do a tree structure like:
Table Name: test
Fields:
ID
ParentID
Description
I created a browser (IR) (page 1) that calls a form (page 2)
The form has the editing fields and at the bottom layer I have a reports region where I display the children records using a query like:
select * from test where ParentID = :P2_ID
I need at the region level to add a button to call a form to edit the child record (which is the same table) and when done, to return to the form again but to the parent record.
How can I do that successfully? Is there any example:?
Thank you

Maybe this can help:
http://apex.oracle.com/pls/otn/f?p=31517:157
using instead of trigger on a view.
Denes Kubicek
http://deneskubicek.blogspot.com/
http://www.opal-consulting.de/training
http://apex.oracle.com/pls/otn/f?p=31517:1
-------------------------------------------------------------------

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Hi All,
I need to develop tree structure in my VC application. Can any one of you please suggest me the steps to do it.Its very urgent please can any one help me out in this.
Regards,
Lakshmi

Hi Nutan,
if you want to solve it with webdynpro it depends on your skills in java and abap. There are books available to start with webdynpro and there are examples for building tree structures with Webdynpro.
[Java Webdynpro|http://www.sappress.com/product.cfm?account=&product=H983]
[ABAP Webdynpro|http://www.sappress.com/product.cfm?account=&product=H1916]
If you want to do it in VC you have to write e.g. an ABAP rfc function module, which returns you the tree with the information about childnode, parentnode and so on, so that you can display it in the table. But if the users click on sort then the tree is "destroyed". You can also display only a few levels of your tree and when you select a certain node a drill down is done by calling a rfc which returns the child nodes of the corresponding node.
But I think the solution with VC is not the best. Use webdynpro for this requirements.
Best Regards,
Marcel

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Hi,
I would like get data from the database and display the data in tree structure with the check boxes at each nodes on a jsp page with out using any third party tools. how can i do that? Do i require any new tags to fulfill this requirement?
can any one help me out by sending any example code?
thanks in advance.
Regards,
Reddy

Once you have the data in a list or something, can't you just use <c:forEach> and then output standard nested <ul> and <li> tags to give the tree structure.
<html>
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                         <ul>
                              <li>
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                              </li>
                              <li>
                                   <input type="checkbox">Check 1B</input>
                              </li>
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                    </li>
                    <li>
                         <input type="checkbox">Check 2</input>
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How can I create a Tree Structure in java ??

Hi,
I want to create a tree structure(objects hierarchy) using java language. Is there any API method for this ?
Can any one please give me a hint or suggestion how I can do this ??
Thanks for the help in advance.

Do you mean graphically?
You can use a TreeSet or TreeMap if you just want to use tree structures.
Kaj

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