Hiding parent row in a tree

Hello to all the Apex champs out there, can you please help me with the following problem:
I have a table, and in its simplified version, it has the following rows:
Id  Pid       Description
1    NULL   Id 1, Parent Id NULL
2    1         Id 2, Parent Id 1
3    2         Id 3, Parent Id 2
4    1         Id 4, Parent Id 1
5    4         Id 5, Parent Id 4
When these rows are displayed in a tree, the output is:
Id 1, Parent Id NULL
   Id 2, Parent Id 1
      Id 3, Parent Id 2
   Id 4, Parent Id 1
      Id 5, Parent Id 4
I am on a form page that already shows the record with id as 1 (and the tree root id as 1), and I need to display only the children for 1, i.e.
Id 2, Parent Id 1
   Id 3, Parent Id 2
Id 4, Parent Id 1
   Id 5, Parent Id 4
Is there a way by which I can suppress the first Parent Id record as I am already viewing the record on the page?
Many thanks in advance.
Regards,
Dhruva

Hi,
Your tree must contain a root node - that is, the top parent in the tree.
You can, however, hide this by replacing the contents of the tree's Parent Node Template with &nbsp; (you have to put something in the setting otherwise Apex will reset it to the default contents).
Andy

Similar Messages

Cannot sort child rows in multilevel tree table

Hi,
I originally hijacked a two-year-old forum thread that was vaguely similar to my issue, but a kind forum moderator split my post away
(and deleted my other hijack post asking this same question)
so that my inquiry might be viewable on its own.
Hopefully someone can pay attention to my issue instead of getting it confused with those other old forum threads.
So, here we go ...
Is sorting in a treeTable at a particular level possible? Just want to let you I have tried the following approaches to do this. But it dis not work for me.
I have tree table with 2 levels. I am trying to sort the child rows based on its column say "Display Sequence".
User can type in number in this column which contains input text. On value change event of the this field, all the
child rows in the level 2 need to be sorted. This needs to be done without committing the data. On commit it works,
because it sorts based on order by clause. I want the child rows to be sorted on value change event. Following
various approaches I tried.
TreeModel tModel = (TreeModel)treeTable.getValue();
SortCriterion sortCriterion = new SortCriterion("DisplaySequence",true);
List<SortCriterion> sortCriteriaList = new ArrayList<SortCriterion>();
sortCriteriaList.add(sortCriterion);
tModel.setSortCriteria(sortCriteriaList);
The above code does not work, As "DisplaySequence" is not available in the parent view object.
Here is approach no 2
JUCtrlHierBinding treeTableBinding = null;
JUCtrlHierNodeBinding nodeBinding = null;
JUCtrlHierNodeBinding parentNodeBinding = null;
JUCtrlHierTypeBinding nodeHierTypeBinding = null;
Key rowKey;
Object dispSeqObj;
Number displaySequence = null;
Map<Key,Number> keyValueMap = null;
Set<Key> emptyValueKeySet = null;
Map<Key,Number> sortedKeyValueMap = null;
DCIteratorBinding target = null;
Iterator iter = null;
int rowIndex = 1;
RowSetIterator rsi = null;
Row currentRow = null;
Row row = null;
RowKeySet selectedRowKey = lookupTreeTable.getSelectedRowKeys();
Iterator rksIterator = selectedRowKey.iterator();
if (rksIterator.hasNext()) {
List key = (List)rksIterator.next();
System.out.println("key :"+key);
treeTableBinding = (JUCtrlHierBinding) ((CollectionModel)lookupTreeTable.getValue()).getWrappedData();
nodeBinding = treeTableBinding.findNodeByKeyPath(key);
parentNodeBinding = nodeBinding.getParent();
//rsi = nodeBinding.getParentRowSetIterator();
rsi = parentNodeBinding.getChildIteratorBinding().getRowSetIterator();
keyValueMap = new LinkedHashMap<Key,Number>();
emptyValueKeySet = new LinkedHashSet<Key>();
// Gets the DisplaySequence by iterating through the child rows
while(rsi.hasNext()) {
if(rowIndex==1)
row = rsi.first();
else
row = rsi.next();
rowKey = row.getKey();
dispSeqObj = row.getAttribute("DisplaySequence");
if(dispSeqObj!=null && dispSeqObj instanceof Number) {
displaySequence = (Number)dispSeqObj;
keyValueMap.put(rowKey, displaySequence);
}else {
emptyValueKeySet.add(rowKey);
rowIndex++;
rowIndex = 0;
// Sort the numbers using comparator
DisplaySequenceComparator dispSeqComparator = new DisplaySequenceComparator(keyValueMap);
sortedKeyValueMap = new TreeMap<Key,Number>(dispSeqComparator);
sortedKeyValueMap.putAll(keyValueMap);
rsi.reset();
nodeHierTypeBinding = nodeBinding.getHierTypeBinding();
System.out.println("nodeHierTypeBinding :"+nodeHierTypeBinding);
String expr = nodeHierTypeBinding.getTargetIterator();
if (expr != null) {
Object val = nodeBinding.getBindingContainer().evaluateParameter(expr, false);
if (val instanceof DCIteratorBinding) {
target = ((DCIteratorBinding)val);
ViewObject targetVo = target.getViewObject();
System.out.println("targetVo :"+targetVo);
targetVo.setAssociationConsistent(true);
//ri = target.findRowsByKeyValues(new Key[]{rowData.getRowKey()});
rsi = parentNodeBinding.getChildIteratorBinding().getRowSetIterator();
//rsi = nodeBinding.getParentRowSetIterator();
// Rearrange the tree rows by inserting at respective index based on sorting.
ViewObject vo = nodeBinding.getViewObject();
iter = sortedKeyValueMap.keySet().iterator();
while(iter.hasNext()) {
currentRow = rsi.getRow((Key)iter.next());
rsi.setCurrentRow(currentRow);
rsi.setCurrentRowAtRangeIndex(rowIndex);
//rsi.insertRowAtRangeIndex(rowIndex, currentRow);
rowIndex++;
iter = emptyValueKeySet.iterator();
while(iter.hasNext()) {
currentRow = rsi.getRow((Key)iter.next());
rsi.setCurrentRow(currentRow);
rsi.setCurrentRowAtRangeIndex(rowIndex);
//rsi.insertRowAtRangeIndex(rowIndex, currentRow);
rowIndex++;
rsi.closeRowSetIterator();
AdfFacesContext.getCurrentInstance().addPartialTarget(treeTable);
private class DisplaySequenceComparator implements Comparator {
Map<Key,oracle.jbo.domain.Number> dispSeqMap = null;
public DisplaySequenceComparator(Map<Key,oracle.jbo.domain.Number> dispSeqMap) {
this.dispSeqMap = dispSeqMap;
public int compare(Object a, Object b) {
Key key1 = (Key)a;
Key key2 = (Key)b;
oracle.jbo.domain.Number value1 = dispSeqMap.get(key1);
oracle.jbo.domain.Number value2 = dispSeqMap.get(key2);
if(value1.getValue() > value2.getValue()) {
return 1;
} else if(value1.getValue() == value2.getValue()) {
return 0;
} else {
return -1;
In the above code I tried to perform sorting of DisplaySequence values using comparator, then tried to rearrange
nodes or rows based on sort resurts. But rsi.insertRowAtRangeIndex(rowIndex, currentRow) give
DeadViewException...unable to find view reference. While setting current row also does not work.
Approach 3.
DCIteratorBinding iter1 =
bindings.findIteratorBinding("childIterator");
iter1.executeQuery();
SortCriteria sc = new SortCriteriaImpl("DisplaySequence",false);
SortCriteria [] scArray = new SortCriteria[1];
scArray[0] = sc;
iter1.applySortCriteria(scArray);
Any help in Sorting Child nodes ADF treeTable is appreciated. Thanks in Advance.
Abhishek

Hi Frank,
Thanks for your reply. I have tried similar approach for sorting tree table child rows based on user specified number and it works. But there is a limitation for this. This sorting works only for read only/transient view object. For updatable view object after sorting, data cannot be saved or updated, as it cannot find the rowid. Here is what I tried
In the ParentViewImpl class,
1. overrode the method createViewLinkAccessorRS, so that this method is forcefully executed.
@Override
protected ViewRowSetImpl createViewLinkAccessorRS(AssociationDefImpl associationDefImpl,
oracle.jbo.server.ViewObjectImpl viewObjectImpl,
Row row,
Object[] object) {
ViewRowSetImpl viewRowSetImpl = super.createViewLinkAccessorRS(associationDefImpl, viewObjectImpl, row, object);
return viewRowSetImpl;
2. Added the following method, which will be invoked on valueChange of DisplaySequence in child row. Expose this method through client interface. This method accept a parameter i.e. parent row key of the child row.
public void sortChildRecords(Key parentKey) {
ViewObject viewObject = null;
String type = null;
if(parentKey==null) {
Row [] row = this.findByKey(parentKey, 1);
RowSet rowSet = (RowSet)row[0].getAttribute("ChildVO");
viewObject = rowSet.getViewObject();
viewObject.setSortBy("DisplaySequence asc");
}else {
Row row = getCurrentRow();
RowSet rowSet = (RowSet)row.getAttribute("ChildVO");
viewObject = rowSet.getViewObject();
viewObject.setSortBy("DisplaySequence asc");
this.setQueryMode(ViewObject.QUERY_MODE_SCAN_DATABASE_TABLES |
ViewObject.QUERY_MODE_SCAN_ENTITY_ROWS);
this.executeQuery();
For custom sort, lets say all the numbers should be display first in ascending order, and null or empty values to be display at the end need to override the getRowComparator method in the ChildViewImpl class,
Here is the code for the same
@Override
public Comparator getRowComparator() {
SortCriteria sortCriteria = new SortCriteriaImpl("DisplaySequence",false);
SortCriteria [] sortCriterias = new SortCriteria[1];
sortCriterias[0] = sortCriteria;
return new DisplaySequenceComparator(sortCriterias);
private class DisplaySequenceComparator extends RowComparator {
public DisplaySequenceComparator(SortCriteria [] sortCriterias) {
super(sortCriterias);
public int compareRows(Row row1, Row row2) {
Object dispSeqObj1;
Object dispSeqObj2;
Number dispSeq1 = null;
Number dispSeq2 = null;
boolean compareRow1 = true;
boolean compareRow2 = true;
if(row1!=null) {
dispSeqObj1 = row1.getAttribute("DisplaySequence");
if(dispSeqObj1!=null && dispSeqObj1 instanceof Number) {
dispSeq1 = (Number)dispSeqObj1;
}else {
compareRow1 = false;
if(row2!=null) {
dispSeqObj2 = row2.getAttribute("DisplaySequence");
if(dispSeqObj2!=null && dispSeqObj2 instanceof Number) {
dispSeq2 = (Number)dispSeqObj2;
}else {
compareRow2 = false;
if(compareRow1 && compareRow2) {
if(dispSeq1.getValue() > dispSeq2.getValue()) {
return 1;
} else if(dispSeq1.getValue() == dispSeq2.getValue()) {
return 0;
} else {
return -1;
if(!compareRow1 && compareRow2)
return 1;
if(compareRow1 && !compareRow2)
return -1;
return 0;
The above solution works properly, and sorts the child tree rows. But while saving the changes, update fails. I also came to know that in-memory sorting is applicable to read-only/transient view objects from some blogs and also mentiond in this link http://docs.oracle.com/cd/E24382_01/web.1112/e16182/bcadvvo.htm
Is there any way that updatable view objects can be sorted and saved as well?
Thanks,
Abhishek
Edited by: 930857 on May 2, 2012 7:12 AM

FATAL ERROR: Product's parent not found on tree:....

Hi SDN Community
I was reinstalling integration kit on AIX 5.3.9.0 TL09 machine and I got the error message:
FATAL ERROR: Product's parent not found on tree: 7184609E-D9AA-4E8E-A4A4-819FD95D40CD, parent id: 2924AE14-CF51-4126-ABEC-845067212EBC
Before that i tried to uninstall a previous failled installation. I do all the steps mentioned on the guide except executing partnercafuninstall.sh script cause i cannot find it on my system. When i tried to reinstall the Integration Kit i get the error.
Any suggestion to solve the issue?
On Fatal Error during SAP IK XI 3.1 Installation on HPUX IA 64 Machine someone has the same problem but there is not any solution proposed.
Thanks in advance.
Alejandro
Edited by: Andres Alejandro on Jan 22, 2010 10:29 AM

I would suggest you reach out to support so that they can take a look at your system
ingo

Number of Rows in a Tree

I think this should have a fairly simple answer, but I can't find it for the life of me. Is there somehow I can obtain the total number of rows in a tree control? With a listbox you can use the Property node "ItemNames" and just use an Array Size, but Tree Controls don't seem to have anything similair. Any ideas? Am I missing something simple?
Michael

Hi miguelc,
If nothing else miguel, this forum specifically answered how to get tree structure sizes. Happy programming.
Brian K.

How can I group a collection of rows under a "parent" row, like a sub-group?

I want something like collapsible lists, where you have a parent row, and then subordinate rows that appear and disappear as you wish. I'm trying to implement something like project or task management, where a parent task may have child tasks, one or more of which may also have child tasks.

Numbers can "sort of" do this kind of thing (in the sense that you can hide and unhide rows). But it's not really designed to be an efficient outliner or task manager (except for simple checklists such as the one included in the template chooser, or the more sophisticated Gantt chart template Jerry created and makes available upon request).
SG

How do you retrieve child tags from a parent tag in a tree structure and build an array from it?

Is there a property node somewhere that can retrieve the tags of all the children of an "active" parent tag in a tree structure? If I click on the parent tag, I want to be able to show what child tags are under that parent tag.

There is not a property or method that I have been able to find, however I wrote this VI that given a parent tag returns all the children.
Evan Collier
Attachments:
Get_1_Lv_of_children.vi ‏59 KB

Updating parent row in a self-join table with triggers

Hi Gurus!
Need of a business to update parent row(s) in the same table with triggers (insert, update and delete). Table is having recursive relation and error is coming as mutating error. I was able to do this with MS-SQL server.
Appreciate any help or work around possibilities.
Regards,
SH

SH,
popular solutions to this issue include
- autonomous transactions
- recording (typically in PL/SQL package variables) the rows being processed from the row level triggers and using this information in the after statement level trigger to perform the update on the parent rows
- use a View with an instead of trigger to re-route the DML on your table
Which one to use depends on what exactly you are trying to achieve and how the data hangs together.
Lucas

How to create new Row in ADF Tree

I have create a ADF Tree from a VO in my page and I want to add new Row to the Tree before the Tree loads into the page.
can any one provide me the sample code to insert the new Row at runtime.
Thanks,
Swathi

Create a method in AMimpl that would create a new row for the VO and expose it to the thru client interface.
In the page Def for the page that has the tree, add the method action in the bindings section.
You can invoke this method using phase listener.
heck the code snippet below:
TestPage.jspx:
<?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:af="http://xmlns.oracle.com/adf/faces/rich">
<jsp:directive.page contentType="text/html;charset=UTF-8"/>
<f:view beforePhase="#{TestPageBean.phaseListener}">
<af:document title="TestPage.jspx" id="d1">
<af:form id="f1">
<af:panelHeader text="panelHeader 1" id="ph1">
<f:facet name="context"/>
<f:facet name="menuBar"/>
<f:facet name="toolbar">
</f:facet>
<f:facet name="legend"/>
<f:facet name="info"/>
</af:panelHeader>
</af:form>
</af:document>
</f:view>
</jsp:root>
TestPageBean.java:
package com.samples.view;
import javax.faces.event.PhaseEvent;
import oracle.adf.view.rich.component.rich.nav.RichCommandButton;
import oracle.adf.view.rich.context.AdfFacesContext;
public class TestPageBean {
public TestPageBean() {
// METHOD THAT IS INVOKED WHEN THE PAGE IS LOADED
public void phaseListener(PhaseEvent phaseEvent) {
if (phaseEvent.getPhaseId().equals(phaseEvent.getPhaseId().RENDER_RESPONSE)) {
if (!AdfFacesContext.getCurrentInstance().isPostback()) {
// DO THE NECESSARY LOGIC TO invoke the method defined in the pageDef
}Thanks,
Navaneeth

Bad performance when iterating/updating the rows of a tree table

Hello,
we have a tree table based on a VO and EO (with transient attributes). One of the attribute is a flag.
The VO is populated with a complex query having many thousands of rows.
Now, when the user clicks on a parent node, all the children are updated (their flag is set to true) recursively.
This is really really slow. It might require several minutes, while a similar update via PL/SQL on a real table would required few seconds.
Is there any way to improve the performance? We have already applied all the tunings on both the EO and VO mentioned in Oracle Documentation, but they had almost no effect:
- retain viewlink row set iterators
- query hints
- Use update batching
The algorithm we use is the following:
    private void checkTreeNodes(JUCtrlHierNodeBinding node, Boolean check) {
        if (node == null) {
            return;
       TreeVORowImpl nodeRow = (TreeVORowImpl)node.getRow();
        if (nodeRow != null) {
                nodeRow.setFlag(check);
        List<JUCtrlHierNodeBinding> children = null;
        if (!nodeRow.getLevel().equals("4")) // no more than 4 levels
            children = node.getChildren();
        if (children != null) {
            for (JUCtrlHierNodeBinding _node : children) {
                checkTreeNodes(_node, check);
    }

Thanks for you answer.
I am trying to move the logic in a method of the AM. But I have an exception (jdev 11.1.2.1):
    public void checkTreeNodes(TreeVORowImpl node, Boolean check, int level) {
        if (node == null)
            return;
        node.setFlag(check);
        if (level >= 4)
            return;
        Key key = new Key(new String[] { node.getId() }); // Id is the primary Key
        // By debugging via System.out.println, the code stops here:
        RowIterator rowIt = getMyVO().findByAltKey("ParentId", key , -1, false); // children have ParentId = Id
        while (rowIt.hasNext()) {
            TreeVORowImpl row = (TreeVORowImpl)rowIt.next();
            checkTreeNodes(row, check, level + 1);
    }findByAltKey gives the following exception (since it's called from the UI by getting the AM from DataControl):
oracle.jbo.InvalidObjNameException: JBO-25005: [...]
     at oracle.adf.model.binding.DCBindingContainerState.validateStateFromString(DCBindingContainerState.java:573)
     at oracle.adf.model.binding.DCBindingContainerState.validateStateFromString(DCBindingContainerState.java:504)
     at oracle.adf.model.binding.DCBindingContainerState.validateToken(DCBindingContainerState.java:684)
Do you see anything wrong or not efficient?
Thanks.

How to get all items under a parent item in a tree control

Hello,
I have 2 questions regarding a tree control:
1) Is there any way to specify a parent item tag and get an array of ALL its sub item tags? For example, in the attached vi, specify the Parent#2 parent tag and get an array containing Item#P21 and Item#P22
2) Is there a way to specify a range to the ActiveCell property. For example, all items from line#1 to line number#3
Any ideas?
Attachments:
Tree example.vi ‏6 KB

Mentos wrote:
1) Is there any way to specify a parent item tag and get an array of ALL its sub item tags? For example, in the attached vi, specify the Parent#2 parent tag and get an array containing Item#P21 and Item#P22
Did you try a search? There's no direct way of doing this. You have to navigate the tree and build up an array. You can find an example here: http://forums.ni.com/t5/LabVIEW/get-all-children-of-a-parent-in-tree/td-p/729548
2) Is there a way to specify a range to the ActiveCell property. For example, all items from line#1 to line number#3
No. (It's called ActiveCell, not ActiveCells) Presumably you are trying to perform an operation on multiple items. Unfortunately, you need to use a loop. You should defer panel updates if you're doing this a lot.

How to change the color of specific row in ALV tree

Hi,
I m using method set_table_for_first_display of a class CL_GUI_ALV_TREE.
The req is to change the color of specific row. Now can anybody tell me how to change the color of ALV tree. As in ALV tree and in this method 'set_table_for_first_display', there is no parameter IS_Layout.
Pls suggest...

hi
hope this code will help you.
Reward if help.
REPORT zsharad_test1.
TABLES: ekko.
TYPE-POOLS: slis. "ALV Declarations
*Data Declaration
TYPES: BEGIN OF t_ekko,
ebeln TYPE ekpo-ebeln,
ebelp TYPE ekpo-ebelp,
statu TYPE ekpo-statu,
aedat TYPE ekpo-aedat,
matnr TYPE ekpo-matnr,
menge TYPE ekpo-menge,
meins TYPE ekpo-meins,
netpr TYPE ekpo-netpr,
peinh TYPE ekpo-peinh,
line_color(4) TYPE c, "Used to store row color attributes
END OF t_ekko.
DATA: it_ekko TYPE STANDARD TABLE OF t_ekko INITIAL SIZE 0,
wa_ekko TYPE t_ekko.
*ALV data declarations
DATA: fieldcatalog TYPE slis_t_fieldcat_alv WITH HEADER LINE,
gd_tab_group TYPE slis_t_sp_group_alv,
gd_layout TYPE slis_layout_alv,
gd_repid LIKE sy-repid.
*Start-of-selection.
START-OF-SELECTION.
PERFORM data_retrieval.
PERFORM build_fieldcatalog.
PERFORM build_layout.
PERFORM display_alv_report.
*& Form BUILD_FIELDCATALOG
Build Fieldcatalog for ALV Report
FORM build_fieldcatalog.
There are a number of ways to create a fieldcat.
For the purpose of this example i will build the fieldcatalog manualy
by populating the internal table fields individually and then
appending the rows. This method can be the most time consuming but can
also allow you more control of the final product.
Beware though, you need to ensure that all fields required are
populated. When using some of functionality available via ALV, such as
total. You may need to provide more information than if you were
simply displaying the result
I.e. Field type may be required in-order for
the 'TOTAL' function to work.
fieldcatalog-fieldname = 'EBELN'.
fieldcatalog-seltext_m = 'Purchase Order'.
fieldcatalog-col_pos = 0.
fieldcatalog-outputlen = 10.
fieldcatalog-emphasize = 'X'.
fieldcatalog-key = 'X'.
fieldcatalog-do_sum = 'X'.
fieldcatalog-no_zero = 'X'.
APPEND fieldcatalog TO fieldcatalog.
CLEAR fieldcatalog.
fieldcatalog-fieldname = 'EBELP'.
fieldcatalog-seltext_m = 'PO Item'.
fieldcatalog-col_pos = 1.
APPEND fieldcatalog TO fieldcatalog.
CLEAR fieldcatalog.
fieldcatalog-fieldname = 'STATU'.
fieldcatalog-seltext_m = 'Status'.
fieldcatalog-col_pos = 2.
APPEND fieldcatalog TO fieldcatalog.
CLEAR fieldcatalog.
fieldcatalog-fieldname = 'AEDAT'.
fieldcatalog-seltext_m = 'Item change date'.
fieldcatalog-col_pos = 3.
APPEND fieldcatalog TO fieldcatalog.
CLEAR fieldcatalog.
fieldcatalog-fieldname = 'MATNR'.
fieldcatalog-seltext_m = 'Material Number'.
fieldcatalog-col_pos = 4.
APPEND fieldcatalog TO fieldcatalog.
CLEAR fieldcatalog.
fieldcatalog-fieldname = 'MENGE'.
fieldcatalog-seltext_m = 'PO quantity'.
fieldcatalog-col_pos = 5.
APPEND fieldcatalog TO fieldcatalog.
CLEAR fieldcatalog.
fieldcatalog-fieldname = 'MEINS'.
fieldcatalog-seltext_m = 'Order Unit'.
fieldcatalog-col_pos = 6.
APPEND fieldcatalog TO fieldcatalog.
CLEAR fieldcatalog.
fieldcatalog-fieldname = 'NETPR'.
fieldcatalog-seltext_m = 'Net Price'.
fieldcatalog-col_pos = 7.
fieldcatalog-outputlen = 15.
fieldcatalog-datatype = 'CURR'.
APPEND fieldcatalog TO fieldcatalog.
CLEAR fieldcatalog.
fieldcatalog-fieldname = 'PEINH'.
fieldcatalog-seltext_m = 'Price Unit'.
fieldcatalog-col_pos = 8.
APPEND fieldcatalog TO fieldcatalog.
CLEAR fieldcatalog.
ENDFORM. " BUILD_FIELDCATALOG
*& Form BUILD_LAYOUT
Build layout for ALV grid report
FORM build_layout.
gd_layout-no_input = 'X'.
gd_layout-colwidth_optimize = 'X'.
gd_layout-totals_text = 'Totals'(201).
Set layout field for row attributes(i.e. color)
gd_layout-info_fieldname = 'LINE_COLOR'.
gd_layout-totals_only = 'X'.
gd_layout-f2code = 'DISP'. "Sets fcode for when double
"click(press f2)
gd_layout-zebra = 'X'.
gd_layout-group_change_edit = 'X'.
gd_layout-header_text = 'helllllo'.
ENDFORM. " BUILD_LAYOUT
*& Form DISPLAY_ALV_REPORT
Display report using ALV grid
FORM display_alv_report.
gd_repid = sy-repid.
CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
EXPORTING
i_callback_program = gd_repid
i_callback_top_of_page = 'TOP-OF-PAGE' "see FORM
i_callback_user_command = 'USER_COMMAND'
i_grid_title = outtext
is_layout = gd_layout
it_fieldcat = fieldcatalog[]
it_special_groups = gd_tabgroup
IT_EVENTS = GT_XEVENTS
i_save = 'X'
is_variant = z_template
TABLES
t_outtab = it_ekko
EXCEPTIONS
program_error = 1
OTHERS = 2.
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
ENDFORM. " DISPLAY_ALV_REPORT
*& Form DATA_RETRIEVAL
Retrieve data form EKPO table and populate itab it_ekko
FORM data_retrieval.
DATA: ld_color(1) TYPE c.
SELECT ebeln ebelp statu aedat matnr menge meins netpr peinh
UP TO 10 ROWS
FROM ekpo
INTO TABLE it_ekko.
*Populate field with color attributes
LOOP AT it_ekko INTO wa_ekko.
Populate color variable with colour properties
Char 1 = C (This is a color property)
Char 2 = 3 (Color codes: 1 - 7)
Char 3 = Intensified on/off ( 1 or 0 )
Char 4 = Inverse display on/off ( 1 or 0 )
i.e. wa_ekko-line_color = 'C410'
ld_color = ld_color + 1.
Only 7 colours so need to reset color value
IF ld_color = 8.
ld_color = 1.
ENDIF.
CONCATENATE 'C' ld_color '10' INTO wa_ekko-line_color.
wa_ekko-line_color = 'C410'.
MODIFY it_ekko FROM wa_ekko.
ENDLOOP.
ENDFORM. " DATA_RETRIEVAL

Did not auto copy child's value to new parent row

I have page, which have three level
l) level 1 is Scroll area (group) , level 2 is Grid( members)
2) if My Scrollrow1 have two rows on his Grid(level)
when I add one more row in level 1(my Scroll Arear) , it would auto copy the Grid value.
what I want is if I add one new row at level 1 , I don't want it auto copy child's value( Grid) to new parent( scroll) row

This is default behaviour of Effective dated records
PeopleTools 8.52: PeopleSoft Application Designer Developer's Guide > Planning Records, Control Tables, and TableSets > Effective Dates
When you run a page with effective-dated records and you insert a row, the system copies the contents of the previous row into the new row to save you keying time. In a large effective-dated table, you do not want to reenter all of the data when only a single field changes. Also, anytime you insert an effective-dated row using PeopleCode, the system copies the contents of the previous row.
I believe this happens when Effdt is the last key in your record. If you do not want to use this feature, try moving Effdt to a higher order in the key structure.
Regards,
Hakan

How to retrieve a child node's immediate parent node from a tree table?

Hello
Hi,
I have a category_subcategories table, and I would like to know how to construct a sql and sub-sql for retrieving a child node's immediate parent node.
Here is my first part of the sql, it only returns the node "Flash"'s parent and its grand-parents:
SELECT parent.category_name, node.lft, node.rgt
FROM category_subcategories AS node,
category_subcategories AS parent
WHERE node.lft > parent.lft AND node.lft < parent.rgt
AND node.category_name = 'FLASH'
ORDER BY parent.lft;
| name |
| ELECTRONICS |
| PORTABLE ELECTRONICS |
| MP3 PLAYERS | |
how can I modify this query so that it returns Flash' parent - 'MP3 Players'?
Thanks a lot
Sam

Hi,
This is an Oracle forum. If you're not iusing Oracle, make that clear. Always say what version of your softwate you're using, whether it's Oracle or anything else.
Whenever you have a question, post a little sample data (CREATE TABLE and INSERT statements), and the results you want from that data. Explain how you get those results from that data.
It looks like you're using the Nested Sets technique for modeling a tree. To get the parents of given nodes, do something like this:
SELECT        parent.category_name
,       node.lft
,       node.rgt
FROM        category_subcategories      node     -- Can't use AS with table alias in Oracle
,       category_subcategories      parent
WHERE        parent.lft      IN (
                    SELECT     MAX (lft)
                    FROM     category_subcategories
                    WHERE     lft     < node.lft
                    AND     rgt     > node.rgt
AND        node.category_name          = 'FLASH'
ORDER BY parent.lft; This should work in Oracle 8.1 and up. (I can't actually test it unless you post CREATE TABLE and INSERT statements for some sample data). You may need to modify the syntax a little for your database.
785102 wrote:
Hello,
I tried to implement the solution as follow:
mysql> select parent.*
-> from category_subcategories as parent
-> having parent.lft =
-> (select max(parent.lft) from
-> (SELECT parent.category_name, parent.lft, parent.rgt
-> FROM category_subcategories AS node,
-> category_subcategories AS parent
-> WHERE node.lft > parent.lft AND node.lft < parent.rgt
-> AND node.category_name = 'Sofa'
-> ORDER BY parent.lft
-> )
-> );
ERROR 1248 (42000): Every derived table must have its own alias
mysql>
But I got an error.
What is wrong with it?What does the error message say?
Apparantly, in your system (unlike Oracle), every sub-query must have a name. Try something like this:
select      parent.*
from      category_subcategories as parent
having      parent.lft = (
               select      max(parent.lft)
               from     (
                         SELECT        parent.category_name
                         ,       parent.lft
                         ,       parent.rgt
                         FROM        category_subcategories      AS node,
                                category_subcategories      AS parent
                         WHERE        node.lft      > parent.lft
                         AND        node.lft      < parent.rgt
                         AND        node.category_name = 'Sofa'
                         ORDER BY parent.lft     -- Is this a waste of effort?
                    ) AS got_name_lft_and_rgt
              )     AS got_lft
;What is the purpose of having the inner sub-query, the one I called got_name_lft_and_rgt?
Also, in Oracle, an ORDER BY clause in a sub-query doesn;t guarantee that any super-queries will keep that order. Why do you have an ORDER BY clause in the sub-query, and not in the main query?

Accessing the parent element of a tree node !

Hi All,
Im building a tree application, in which the user has the option for creating a new node at any level he wants. But my problem is, If the user wants to create a node at the same level of the selected node, how do I retrieve the parent element? Can someone help me in this regard? Ive done the following
1)     Created a node TreeNode with the required attributes & the recursive node.
2)     When the user clicks on any node, I am able to retrieve the selected element through recursive traversal (i.e. the instance of TreeNodeElement, say elmt)
3)     I was able to retrieve the parent element through the function elmt.node().getParentElement(). But it returns an instance of IWDNodeElement, which does not have the recursive node. Ofcourse, I cannot typecast IWDNodeElement to TreeNodeElement.
Then How do I retrieve the TreeNodeElement instance of the parent element? Someone please help..!
Thanks in Advance,
Best Regards,
Nibu.

Hi Nibu,
you should type as follows
IPrivateRecursiveTree.ITreeNodeElement ele=(IPrivateRecursiveTree.ITreeNodeElement)selectedElement.node().getParentElement();
this way you will get the Parent element of the current node.
Rgds,
Vilish
P.S. If prob solved, consider reward points

Hiding Page 0 Items and Tree Node Links

I have two issues I'm trying to work out:
1) I have created a tree on page 0 that I want to appear on all of my REPORT pages, so the user can filter the reports regardless of which page they're on. The problem is that the tree is also appearing on the login page and the Home page. Is there any way to hide the tree on the login and home pages but have it appear on all other pages? I'm trying to avoid having to create the tree on every single report page.
2) I need the tree to work like this: the user clicks any node in the tree, and all reports (on multiple pages) are filtered based on the node selected. So I don't actually want the nodes to be links to a report, I just want the reports to be filtered based on the node value selected. Then I'll have tabs to navigate between the different reports. Is this possible?
Thanks.

I dunno if you correct it, but there was small mistake in the JS code - a closing bracket was missing
$s('P0_TREE_NODE', $(this.triggeringElement).parents('li:first').attr('id'));
it looks like the node value IS being stored in the session stateI hope you checked for items in page 0 (it should then list down page 0 items including P0_TREE_NODE) when you searched for session state(it defaults to whichever page is run currently)
If these two are working fine, it has to be some page process/computation/item source/item default that modifies the item value when you move between pages.
To find this: Turn debug on, reload the page , click on a tree node, then redirect to some other page and then check the debug report and see if the page 0 item: P0_TREE_NODE is being set/reset/modified elsewhere.

Hiding parent row in a tree

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