Problem Clearing a hierarchical tree

Is there a better way to clear a tree without deleting all the nodes. I want to clear the tree and not display anything.

If you have populated the tree manually, and the Record Group and Data Query columns are null, then you can use ftree.Populate_Tree to populate the tree with a null tree. This effectively clears it.

Similar Messages

Problem creating a hierarchical tree in forms builder[issue with the query]

Hi all,
I have 2 tables.
box (box_id, box_name)
item(item_id, item_name, box_id)
In a box there are several items.
I want to create a hierachical tree to display items that are present in each box.
LIKE:
|---BOX1
| |----ITEM 1
| |----ITEM 2
|
|---BOX2
| |----ITEM 1
| |----ITEM 2
Currently i am trying this query:
SELECT -1 state, box_name, 'icon' icon, box_id val
from box b, item i;
I don't know what value to put for level, i don't know how to code the 'connect by prior' part.
Could you please advise me?
Michaël.
PS. Then i will eventually use this query in forms builder.

Hi MichaelR
i get the FRM - 47321 error in forms builder ..
Hence In order to populate a tree, the Select order must retrieve 5 columns:
STATUS, LEVEL, LABEL, ICON, VALUE u should notice this orders in ur Query this will solve the error and pls notice that the...
My advice is to use the On Line help in ur forms builder to help u in this ...
Initial state : number
Node tree depth : number
Label for the node : varchar2
Icon for the node : varchar2
Data : varchar2This should be in WHEN-NEW-FORM-INSTANCE-trigger in order to populate ur tree...
another thing why don't u think of building ur tree as i did here in the following example...Pls have a look here ....
Hope this helps...
Regards,
Amatu Allah.

Hierarchical Tree: When-Tree-Node-Activated is not working

I'm working Forms 10G rel.2.1 and also using application server 10G 2.
my problem is in Hierarchical Tree [When-Tree-Node-Activated] is not working in Enter this is working in Enter+Tab
I want to this trigger is working in only Enter.
I'm waiting quick response

node_value is only item which have transfer the form or report name
Trigger Name : WHEN-TREE-NODE-ACTIVATED
Declare
     htree                Item ;
Begin
     --clear_values;
--           htree := Find_Item('tree.htree');
-- Find the value of the node clicked on.
:node_value := ftree.Get_Tree_Node_Property(htree, :SYSTEM.trigger_NODE, Ftree.NODE_VALUE);
----Above node value transfer the procedure and call the form with node_value(Form Name)
     Execute_CMD_PROC;
Exception
     When Others Then Null;
End ;
when i enter then no value but when i enter+tab then show the form

Hierarchical tree on web

hy everyone,
i've got a really strange problem with a hierarchical tree. it runs fine with C/S, i can expand and collapse as much branches i like.
but when i put it on the web (9iAS Server and MSIE 5.01 as client) and expand some tree nodes the complete web application looses its database connection.
so i can't even navigate to the "show errors" in the navigation bar, everything dead.
do you have any idea why this happens only on the web and not on C/S ?
if you have more questions relating to this problem or need a test case, please contact me.
thanx for replys, martin
null

this is a bug of FORMs 6i and is fixed with patch 8?
martin

Problem with Pre-Popup-Menu in Hierarchical Tree

Hi,
In Forms 10g I have made an application with an Hierarchical Tree. All works well, except the use of the Pre-Popup-Menu trigger.
In that trigger when I read the values of Node_Label and Node_Value I get the values of the previous selected node, not the values of the node on which I issue the right mouse click. So, it seems that by clicking the node I need is not selected.
Does anyone have any clues to solve this problem?
Thanks in advance.

Right clicking does not change the current selection. The tree has no way to report what node was right clicked. Only work around is to left click the node you wish then right click it.
--pat

Problems with right click in hierarchical tree

Hi,
I create a popup menu in a hierarchical tree and want to call this referencing to a node in the tree.
I can get the node in GET_TREE_NODE_SELECTION but the node need to be selected for this...
How can I select a node with a right click?? and then call the popup menu??
Am I clear??
Why the trigger MOUSE_CLICK doesn't works for right clicks??? I know about the SYSTEM.MOUSE_BUTTON_PRESSED but to use this I need a RIGHT_CLICK_TRIGGER... that I don't know how to call...
thanks!

Hi,
This is a bug(96289), the same as the Base bug 1477977 which has NOT been fixed in Release 9.0.2 (as Oracle anounced) or in any earlier releases.
Bug 1477977 was currently scheduled for the 1st patchset of Forms 9.0.4
I don't know if it was fixed. Contact Oracle about that.
Right now, to achive what you want you must left click to select a node. This means that the use must do a left click and a right click to have an item selected.
Monica

Problem when selecting child node in Hierarchical Tree

I have a hierarchical tree on a form populated thru a table query(form1). When I click on a child node, it opens form2 which contains a tab canvas. After closing forms, I return to the form1(containing Tree). At this point If I want to click on the same child node, I should be able to open form2 again. This doesn't happen.
I have the following code in my When-Tree-node_selected trigger:
Declare
htree item;
vnode_label varchar2(50);
node_clicked FTREE.NODE;
vnode_value number;
vnode_depth number;
v_type number;
v_value varchar2(100);
v_form_name varchar2(100);
v_alert_return number;
begin
-- Find the tree itself.
htree := FIND_ITEM('tree_block.tree');
node_clicked := :SYSTEM.TRIGGER_NODE;
vnode_value := FTREE.NODE_label;
-- Find the value of the node clicked on.
vnode_label := FTREE.GET_TREE_NODE_PROPERTY (htree,:SYSTEM.TRIGGER_NODE,FTREE.NODE_label);
vnode_depth := to_number(ftree.get_tree_node_property(htree,:SYSTEM.TRIGGER_NODE,ftree.Node_depth));
--Open form for node selected on tree and/or specific tab page
if vnode_depth <> 1 then
if :system.trigger_node_selected = 'TRUE' then CASE vnode_label
WHEN 'Personal' then
v_form_name :='HR_PERSONAL_INFO_UPDATE';
WHEN 'Citizenship' then
v_form_name :='HR_PERSONAL_INFO_UPDATE';
WHEN 'Emergency Contact' then
v_form_name :='HR_PERSONAL_INFO_UPDATE';
if id_null(Find_form(v_form_name)) then
open_form(:global.application_path || v_form_name,ACTIVATE,NO_SESSION,SHARE_LIBRARY_DATA);
else
go_form(v_form_name);
end if;
END IF;
elsif vnode_depth = 1 then
if :system.trigger_node_SELECTED = 'TRUE' then CASE vnode_label
WHEN 'EMPLOYEE INFO' then
v_form_name :='HR_PERSONAL_INFO_UPDATE';
vnode_label := 'Personal';
WHEN 'REPORTS' then
v_form_name :='HR_REPORTS';
vnode_label := '';
if id_null(Find_form(v_form_name)) then
v_form_name := :global.application_path || v_form_name;
open_form(v_form_name,ACTIVATE,NO_SESSION,SHARE_LIBRARY_DATA);--,p_list);
else
go_form(v_form_name);
end if;
end if;
end;
Can anyone please help me? I don't want the user to double click. They should only click once.
Thanks,
Mercedes

Right clicking does not change the current selection. The tree has no way to report what node was right clicked. Only work around is to left click the node you wish then right click it.
--pat

Hierarchical Tree : Problem with lost Focus

Forms 6i:
I have a form with a hierarchical tree.
The focus is on the tree.
Now I go into word or an other application. After that I change back to forms.
Now I cannot go into other blocks via mouse. In case, that I click in those records or blocks, I see the focus going into the record and directly going back to the tree-item.
That means, I lose my mouse in tree-forms after changing the windows applications.
Who knows a workaround ?
Gerd

The below given code which only accepts integers + you can not copy and paste
anything in it other than integers.
It also sets the maximum length for a JTextField
import javax.swing.*;
import javax.swing.text.*;
import java.awt.*;
public class maxLengthText extends PlainDocument
int maxVal=0;
public maxLengthText(int maxLength)
maxVal = maxLength;
public void insertString(int offset, String str, AttributeSet a)
throws BadLocationException
if (getLength() + str.length() > maxVal)
return;
else
try
if(!Double.isNaN(Double.parseDouble(str)))
super.insertString(offset, str, a);
catch(Exception e)
JOptionPane.showMessageDialog(null,"Numbers Only","TextField",1,new ImageIcon("Images/warnDel.gif"));
offset=0;
public static void main(String[] args)
Document doc = new maxLengthText(5); // set maximum length to 5
JTextField txtInt= new JTextField(doc, "", 6);
JPanel panel = new JPanel();
panel.add(txtInt);
JFrame frame = new JFrame("My TextField");
frame.setContentPane(panel);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(160, 80);
frame.setVisible(true);
}

Hierarchical tree problem

Hi,
I have a hierarchical tree in one my forms that one branch of it has about 2000 nodes the hierarchical tree does not display all the values.
I've tested with about 1500 and it show correctly.
Any limitation? any workaround?
regards

Hi,
Something like this:
SCOTT@soti_9> CREATE TABLE Org(
2    Org_Id INTEGER,
3    Org_Name VARCHAR2(100),
4    Parent_Org_Id INTEGER
5 );
Table created.
SCOTT@soti_9> INSERT INTO Org(Org_Id, Org_Name, Parent_Org_Id) VALUES(1, 'Org_1', NULL);
1 row created.
SCOTT@soti_9> INSERT INTO Org(Org_Id, Org_Name, Parent_Org_Id) VALUES(2, 'Org_2', 1);
1 row created.
SCOTT@soti_9> INSERT INTO Org(Org_Id, Org_Name, Parent_Org_Id) VALUES(3, 'Org_3', 2);
1 row created.
SCOTT@soti_9> INSERT INTO Org(Org_Id, Org_Name, Parent_Org_Id) VALUES(4, 'Org_N', 2);
1 row created.
SCOTT@soti_9> COMMIT;
Commit complete.
SCOTT@soti_9> CREATE TABLE Members(
2    User_Id INTEGER,
3    Org_Id INTEGER
4 );
Table created.
SCOTT@soti_9> INSERT INTO Members(User_Id, Org_Id) VALUES(1, 3);
1 row created.
SCOTT@soti_9> INSERT INTO Members(User_Id, Org_Id) VALUES(2, 3);
1 row created.
SCOTT@soti_9> INSERT INTO Members(User_Id, Org_Id) VALUES(3, 3);
1 row created.
SCOTT@soti_9> INSERT INTO Members(User_Id, Org_Id) VALUES(4, 4);
1 row created.
SCOTT@soti_9> INSERT INTO Members(User_Id, Org_Id) VALUES(5, 4);
1 row created.
SCOTT@soti_9> COMMIT;
Commit complete.
SCOTT@soti_9> WITH Branches AS (
2    SELECT Org_Id
3    FROM Org
4    START WITH Org_Name = 'Org_2'
5    CONNECT BY PRIOR Org_Id = Parent_Org_Id
6 )
7 SELECT COUNT(*)
8 FROM Branches B
9    JOIN Members M USING(Org_Id)
10 ;
COUNT(*)
         5
SCOTT@soti_9> WITH Branches AS (
2    SELECT Org_Id
3    FROM Org
4    START WITH Org_Name = 'Org_1'
5    CONNECT BY PRIOR Org_Id = Parent_Org_Id
6 )
7 SELECT COUNT(*)
8 FROM Branches B
9    JOIN Members M USING(Org_Id)
10 ;
COUNT(*)
         5Regards,
Dima

Hierarchical tree with iconic nodes

hi i'm using database - 10g, developer suite - 10g; created a hierarchical tree and the icons are displaying along side the nodes when they are being selected or activated.
problem - i've stored the icons in g:\ICONS (all gif icons). but when i run the form it is picking up the icons from the following location - C:\Documents and Settings\development\Oracle Jar Cache\frmall_jinit.jar-63ace618-1160d49b\oracle\forms\icons. I've a button in the same form and the icon showing on it is from the location G:\ICONS(as desired); but in case of tree it's from the location which is not desirable.
any help.

Hello,
You need to change the imagebase parameter to be documentbase instead of codebase.
When imagebase is set to codebase forms looks for Images in the jar files and then in the absolute path, otherwise it check direct path.
For details in deploying the Images please check:
http://docs.oracle.com/cd/B14099_19/web.1012/b14032/configure009.htm
Clear the Java cache and browser cache after the above changes!
Regards,
Alex
If someone's answer is helpful or correct please mark it accordingly!

About hierarchical trees

Dear Oracle forum,
I would be greatful if anyone could help me with this problem:
For the first time i installed forms6i and used the HIERAARCHICAL item called htree3
and In NEW_FORMS_INSTANCE include the code below
DECLARE
htree ITEM;
v_ignore NUMBER;
rg_emps RECORDGROUP;
BEGIN
/* Window controls */
set_window_property(forms_mdi_window,window_state,maximize);
set_window_property(forms_mdi_window,title,' Oraganization');
-- Find the tree itself.
htree := Find_Item('tree_block.htree3');
-- Check for the existence of the record group.
rg_emps := Find_Group('emps');
IF NOT Id_Null(rg_emps) THEN
DELETE_GROUP(rg_emps);
END IF;
-- Create the record group.
rg_emps := Create_Group_From_Query('rg_emps',
'select 1, level, ename, NULL, to_char(empno) ' | |
'from emp ' | |
'connect by prior empno = mgr ' | |
'start with job = ''PRESIDENT''');
-- Populate the record group with data.
v_ignore := Populate_Group(rg_emps);
-- Transfer the data from the record group to the hierarchical
-- tree and cause it to display.
Ftree.Set_Tree_Property(htree, Ftree.RECORD_GROUP, rg_emps);
END;
code work properly, but when I click anywhere in the tree, I am getting following internal error.(Anyway Visual c++ is not installed in my pc.
Error what am i getting is
- Assertion failed
program: E:\forms6i\bin\FDBG60.exe
file e:\f994w32\src\if\iff\ifztma.c
line 607
Please help me
Thanks
Chandana
null

Now my requirement is that before populating tree
item i want to clean up the tree item,if any other
soln. plz sugg.
POPULATE_TREE Built-in: Description
Clears out any data already in the hierarchical tree,
and obtains the data set specified by the RecordGroup
or QueryText properties.

Can i have a check box in the hierarchical tree in the icons place, urgent!!! please

Hi,
I'am working on the Hierarchical Tree structure which should have three levels, I need to have a check box in the place of the icon & if i select a node that node & the child nodes should get selected.
After this when i say move selected ( i'am trying to use picklist class also) the entire checked tree has to move to the display area to the right & should display as tree structure & after this if i save then the checked records which are moved to another text area should get saved!!
How to achieve this? I have the tree structure ready but the check box part is the worrying factor! & then moving the checked records to the right using picklist class is the second problem & finally saving records to database.
Any help in this regard will be deeply appreciated:)
If check box is not possible then i will have to look at other methods, will the tree structure allow checkboxes????
Thanks
Mahesh

No the tree will not allow checkboxes

Hierarchical Tree error - fighting for over a year

For over a year now, our Oracle forms have presented an elusive problem with Hierarchical Trees. First some core information:
We are running Developer 6i, patchset 8, on a Sun host and an Oracle 8i database. Our forms are deployed over the web on the
Oracle Application Server using J-Initiator 1.1.7.27.
Now, only on our Production platform, and only during busy times of the day, we randomly get the error "Invalid Query for Hierarchical
Tree" when one of our tree-based forms populates the tree. This error is sometimes followed by the infamous
FRM-92100 "connection has been terminated" error. This happens whether building the tree with a single Selec and Populate Treet,
or via a systematic series of Add Tree Node calls.
We have tried rebuilding the form logic to eliminate form corruption, (form corruption - happens if you open a large FMB in the
forms developer without first being connected to the database, manifests itself as random and odd form behaviour,
or FRM-92100 errors, Oracle product support denies it really happens), we have added debug code, we've even tried generating
the FMX on the Production platform as part of our deployment (normally we generate FMX files on our Integration platform
which mirrors Production).
We are not scheduled to upgrade for Forms 9i and the 9IAS for several more months, so upgrading isn't an immediate option for us.
Any and all ideas welcome.
Jeff Cline

Hi Nigel,
Two questions:
1. When the publisher sends the access permission to the subcriber by:
netStream.send("|RtmpSampleAccess", true, true)
, on the subscriber side, what event or function can handle the guaranteed receipt of the access permission? Currently it is possible to draw the incoming stream video upon receiving NetStream.Play.Star and waiting for 5 seconds or so:
public class MyWebcamSubscriber extends WebcamSubscriber {
override protected function layoutCameraStreams():void
// trying the event listener seems to work here.
_streamManager.addEventListener(NetStatusEvent.NET_STATUS, onNetStatus);
override protected function onNetStatus(e:NetStatusEvent):void
super.onNetStatus(e);
case "NetStream.Play.Start":
setTimeout(function():void {
// draw the video from the incoming stream here.
}, 5000);
The questions is, which event can let the subscriber know that it has the access permission to the video stream?
2. In WebcamPublisher, why is that the access permission is sent 3 times?
a. Once on receiving NetStream.Connect.Success with 0.5 second delay, as in below.
b. Once immediately upon receiving NetStream.Connect.Success, as in below.
protected function onNetStatus(p_evt:NetStatusEvent):void
if (p_evt.info.code=="NetStream.Connect.Success") {
setTimeout(sendSnapShotPermission, 500);
_stream.send("|RtmpSampleAccess", true, true);
protected function sendSnapShotPermission():void
_stream.send("|RtmpSampleAccess", true, true);
c. Once in onConnectionTypeChange() with 2 seconds delay:
protected function onConnectionTypeChange(p_evt:StreamEvent):void
if ( _streamManager.isP2P) {
_stream= new NetStream(_connectSession.sessionInternals.session_internal::connection as NetConnection,NetStream.DIRECT_CONNECTIONS);
setTimeout(sendSnapShotPermission, 2000);

Can I use Hierarchical Tree from Forms6.0 in Forms5.0

Hello
The Oracle Custumer Support tell me that it should be possible to
use Hierarchical Trees also in Forms5.0
I look for a possibility to build a Navigator in Forms5.0
with Symbols. (look and feel like the Navigator in Forms6.0 if I
use Symbols in the Record Group).
I Description should be on
http://developer.us.oracle.com
but either i have no access to this side or
the URL is false.
Sure is that there is a description over this Problem.
And i have to get this description ;-)))
Thanks for Help
JK
null

That is not recommended. The new code editing features do not play well with an old workspace.
Please create a new workspace and import your projects into that.
-Anirudh

Make an hierarchical Tree in oracle Forms 6i

Hi everybody,
I want to make an hierarchical tree. I work in Forms 6i
I create one non database block e.g. 'Bloc2' then
add hierarchical control item in that. e.g 'Menu'.
I create a record group named 'RG_DATA_TEST'
Before I use a table in this record_group.
I want a tree as this :
- Menu1
Menu1 option1
Menu1 option2
- Menu1 option3
Menu option3 Sub opt 3
+ Menu2
the table 'Menu_tree' is described' :
CREATE TABLE MENU_tree
ID NUMBER(5),
LABEL VARCHAR2(128 BYTE),
ICON VARCHAR2(40 BYTE),
MASTER NUMBER(5),
STATUS NUMBER(1) DEFAULT 1,
VALUE VARCHAR2(128 BYTE)
Here the data in the table :
INSERT INTO MENU_tree ( ID, LABEL, ICON, MASTER, STATUS, VALUE ) VALUES (1, 'Menu1', 'mainmenu', NULL, 1, NULL);
INSERT INTO MENU_tree ( ID, LABEL, ICON, MASTER, STATUS, VALUE ) VALUES (
2, 'Menu1 Option 1', 'optionmenu', 1, 1, 'Dialog11');
INSERT INTO MENU_tree ( ID, LABEL, ICON, MASTER, STATUS, VALUE ) VALUES ( 3, 'Menu1 Option 2', 'optionmenu', 1, 1, dialog12');
INSERT INTO MENU_tree ( ID, LABEL, ICON, MASTER, STATUS, VALUE ) VALUES (4, 'Menu1 Option 3', 'optionmenu', 1, 1, NULL);
INSERT INTO MENU_tree ( ID, LABEL, ICON, MASTER, STATUS, VALUE ) VALUES ( 5, 'Menu1 Opt 3 Sub Opt 3', 'suboptionmenu', 4, 1, 'Dialog131');
INSERT INTO MENU_tree ( ID, LABEL, ICON, MASTER, STATUS, VALUE ) VALUES ( 6, 'Menu2', 'mainmenu', NULL, -1, NULL);
INSERT INTO MENU_tree ( ID, LABEL, ICON, MASTER, STATUS, VALUE ) VALUES ( 7, 'Menu2 Option1', 'optionmenu', 6, 1,'Dialog21');
The record_group use this instruction SELECT :
SELECT STATUS, LEVEL, LABEL, ICON, VALUE
FROM MENU_tree
CONNECT BY PRIOR ID = MASTER
START WITH MASTER IS NULL
And At the trigger When_new_form_instance , i do this code :
DECLARE
htree ITEM;
V_IGNORE number;
BEGIN
HTREE := FIND_ITEM('BLOC2.MENU');
V_IGNORE := POPULATE_GROUP('RG_DATA_TEST');
FTREE.POPULATE_TREE(htree);
END;
When i run the forms, It don't give me a structure of node.
It give me only a icon with two arrows.
Where is the problem ?
Must I add code somewhere ?
Help me for your ideas.
Regards.
Edited by: 794982 on 17 sept. 2010 04:55
Edited by: 794982 on 17 sept. 2010 05:01
Edited by: 794982 on 17 sept. 2010 05:04
Edited by: 794982 on 17 sept. 2010 05:06
Edited by: 794982 on 17 sept. 2010 05:13
Edited by: 794982 on 17 sept. 2010 05:19
Edited by: 794982 on 17 sept. 2010 05:23

Ok Francois Thanks for your response.
Just I pricise i work with oracle forms version 9.0.4.0.19 .
But I am putting this code in trigger When_New_form_Instance but it didn't work.
When I execute it just shows a line with two arrows but not a real tree.
Then I do a block-non based and a elemnt with type hierarticall tree and a canevas.
and i create a record_group. and in a palette property of the element i precise the canevas and the record_group
I don't khnow where is the problem ?
Any other suggestion ? please
Regards.

Problem Clearing a hierarchical tree

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