JTree expand/collapse

how to check if a node in a JTree is expanded???

In my JTree there are couple of nodes which are all initially expanded.
User collapses couple of nodes in the JTree while others are still expanded.
Then, if user deleted a node from a JTree would like to keep all expanded nodes as expanded and collapsed nodes as collapsed.
How to do this?
Thanks.

Similar Messages

JTree expand/collapse annoyance

Is there a way to collapse a tree node only when the minus sign is pressed, and not when the name of the node itself is pressed?
Or do I have to set up a mouse listener for this? I'd rather not do this b/c I recall it interfering with my drag and drop stuff last time I tried.

I've already figured out how to block it completely, but not to distinguish when the minus icon is pressed or the name of the node is pressed.
         public void treeWillCollapse( TreeExpansionEvent event ) throws ExpandVetoException {
               if (someMysteriousCondition){
                  throw new ExpandVetoException( event ); // Collapse is not allowed because exception is thrown
                else{
                //execute code as normal
      } );

JTree with XML content expand/collapse problem

Hello all,
I'm having this very weird problem with a JTree I use to display the contents of an XML file. I use the DOM parser (and not JDOM since I want the application to run as an applet as well, and don't want to have any external libraries for the user to download) and have a custom TreeModel and TreeNode implementations to wrap the DOM nodes so that they are displayed by the JTree.
I have also added a popup menu in the tree, for the user to be able to expand/collapse all nodes under the selected one (i.e. a recursive method).
When expandAll is run, everything works fine and the children of the selected node are expanded (and their children and so on).
However, after the expansion when I run the collapseAll function, even though the selected node collapses, when I re-expand it (manually not by expandAll) all of it's children are still fully open! Even if I collapse sub-elements of the node manually and then collapse this node and re-expand it, it "forgets" the state of it's children and shows them fully expanded.
In other words once I use expandAll no matter what I do, the children of this node will be expanded (once I close it and re-open it).
Also after running expandAll the behaviour(!) of the expanded nodes change: i have tree.setToggleClickCount(1); but on the expanded nodes I need to double-click to collapse them.
I believe the problem is related to my implementations of TreeModel and TreeNode but after many-many hours of trying to figure out what's happening I'm desperate... Please help!
Here's my code:
public class XMLTreeNode implements TreeNode
     //This class wraps a DOM node
    org.w3c.dom.Node domNode;
    protected boolean allowChildren;
    protected Vector children;
    //compressed view (#text).
     private static boolean compress = true;
    // An array of names for DOM node-types
    // (Array indexes = nodeType() values.)
    static final String[] typeName = {
        "none",
        "Element",
        "Attr",
        "Text",
        "CDATA",
        "EntityRef",
        "Entity",
        "ProcInstr",
        "Comment",
        "Document",
        "DocType",
        "DocFragment",
        "Notation",
    static final int ELEMENT_TYPE =   1;
    static final int ATTR_TYPE =      2;
    static final int TEXT_TYPE =      3;
    static final int CDATA_TYPE =     4;
    static final int ENTITYREF_TYPE = 5;
    static final int ENTITY_TYPE =    6;
    static final int PROCINSTR_TYPE = 7;
    static final int COMMENT_TYPE =   8;
    static final int DOCUMENT_TYPE = 9;
    static final int DOCTYPE_TYPE = 10;
    static final int DOCFRAG_TYPE = 11;
    static final int NOTATION_TYPE = 12;
    // The list of elements to display in the tree
   static String[] treeElementNames = {
        "node",
// Construct an Adapter node from a DOM node
public XMLTreeNode(org.w3c.dom.Node node) {
    domNode = node;
public String toString(){
       if (domNode.hasAttributes()){
            return domNode.getAttributes().getNamedItem("label").getNodeValue();
       }else return domNode.getNodeName();
public boolean isLeaf(){
       return (this.getChildCount()==0);
boolean treeElement(String elementName) {
      for (int i=0; i<treeElementNames.length; i++) {
        if ( elementName.equals(treeElementNames)) return true;
return false;
public int getChildCount() {
     if (!compress) {
return domNode.getChildNodes().getLength();
int count = 0;
for (int i=0; i<domNode.getChildNodes().getLength(); i++) {
org.w3c.dom.Node node = domNode.getChildNodes().item(i);
if (node.getNodeType() == ELEMENT_TYPE
&& treeElement( node.getNodeName() ))
// Note:
// Have to check for proper type.
// The DOCTYPE element also has the right name
++count;
return count;
public boolean getAllowsChildren() {
     // TODO Auto-generated method stub
     return true;
public Enumeration children() {
     // TODO Auto-generated method stub
     return null;
public TreeNode getParent() {
     // TODO Auto-generated method stub
     return null;
public TreeNode getChildAt(int searchIndex) {
org.w3c.dom.Node node =
domNode.getChildNodes().item(searchIndex);
if (compress) {
// Return Nth displayable node
int elementNodeIndex = 0;
for (int i=0; i<domNode.getChildNodes().getLength(); i++) {
node = domNode.getChildNodes().item(i);
if (node.getNodeType() == ELEMENT_TYPE
&& treeElement( node.getNodeName() )
&& elementNodeIndex++ == searchIndex) {
break;
return new XMLTreeNode(node);
public int getIndex(TreeNode tnode) {
     if (tnode== null) {
          throw new IllegalArgumentException("argument is null");
     XMLTreeNode child=(XMLTreeNode)tnode;
     int count = getChildCount();
     for (int i=0; i<count; i++) {
          XMLTreeNode n = (XMLTreeNode)this.getChildAt(i);
          if (child.domNode == n.domNode) return i;
     return -1; // Should never get here.
public class XMLTreeModel2 extends DefaultTreeModel
     private Vector listenerList = new Vector();
     * This adapter converts the current Document (a DOM) into
     * a JTree model.
     private Document document;
     public XMLTreeModel2 (Document doc){
          super(new XMLTreeNode(doc));
          this.document=doc;
     public Object getRoot() {
          //System.err.println("Returning root: " +document);
          return new XMLTreeNode(document);
     public boolean isLeaf(Object aNode) {
          return ((XMLTreeNode)aNode).isLeaf();
     public int getChildCount(Object parent) {
          XMLTreeNode node = (XMLTreeNode) parent;
return node.getChildCount();
     public Object getChild(Object parent, int index) {
XMLTreeNode node = (XMLTreeNode) parent;
return node.getChildAt(index);
     public int getIndexOfChild(Object parent, Object child) {
if (parent==null || child==null )
     return -1;
          XMLTreeNode node = (XMLTreeNode) parent;
return node.getIndex((XMLTreeNode) child);
     public void valueForPathChanged(TreePath path, Object newValue) {
// Null. no changes
     public void addTreeModelListener(TreeModelListener listener) {
          if ( listener != null
&& ! listenerList.contains( listener ) ) {
listenerList.addElement( listener );
     public void removeTreeModelListener(TreeModelListener listener) {
          if ( listener != null ) {
listenerList.removeElement( listener );
     public void fireTreeNodesChanged( TreeModelEvent e ) {
Enumeration listeners = listenerList.elements();
while ( listeners.hasMoreElements() ) {
TreeModelListener listener =
(TreeModelListener) listeners.nextElement();
listener.treeNodesChanged( e );
     public void fireTreeNodesInserted( TreeModelEvent e ) {
Enumeration listeners = listenerList.elements();
while ( listeners.hasMoreElements() ) {
TreeModelListener listener =
(TreeModelListener) listeners.nextElement();
listener.treeNodesInserted( e );
     public void fireTreeNodesRemoved( TreeModelEvent e ) {
Enumeration listeners = listenerList.elements();
while ( listeners.hasMoreElements() ) {
TreeModelListener listener =
(TreeModelListener) listeners.nextElement();
listener.treeNodesRemoved( e );
     public void fireTreeStructureChanged( TreeModelEvent e ) {
Enumeration listeners = listenerList.elements();
while ( listeners.hasMoreElements() ) {
TreeModelListener listener =
(TreeModelListener) listeners.nextElement();
listener.treeStructureChanged( e );
The collapseAll, expandAll code (even though I m pretty sure that's not the problem since they work fine on a normal JTree):
    private void collapseAll(TreePath tp){
         if (tp==null) return;
         Object node=tp.getLastPathComponent();
         TreeModel model=tree.getModel();
         if (!model.isLeaf(node)){
              tree.collapsePath(tp);
              for (int i=0;i<model.getChildCount(node);i++){
              //for (int i = node.childCount()-4;i>=0;i--){
                   collapseAll(tp.pathByAddingChild(model.getChild(node,i)));
              tree.collapsePath(tp);
    private void expandAll(TreePath tp){
         if (tp==null) return;
         Object node=tp.getLastPathComponent();
         TreeModel model=tree.getModel();
         if (!model.isLeaf(node)){
              tree.expandPath(tp);
              for (int i=0;i<model.getChildCount(node);i++){
              //for (int i = node.childCount()-4;i>=0;i--){
                   expandAll(tp.pathByAddingChild(model.getChild(node,i)));

Hi,
Iam not facing this problem. To CollapseAll, I do a tree.getModel().reload() which causes all nodes to get collapsed and remain so even if I reopen them manually.
Hope this helps.
cheers,
vidyut

How do I remove expand / collapse icon for JTree empty folders

Hi
I am using a JTree as a file system browser. I use DefaultMutableTreeNode nodes.
I have a problem with empty folders.
Empty folders show the expand / collapse icon, leading the user to believe there are sub-directories. When the user double-clicks the folder, the expand / collapse icon goes away. This is a "haha-gotcha" glitch that I really don't want my users to have to continually deal with.
So, how might I get my JTree to not show the expand / collapse icon for empty folders?
Thanks
Wayne

Maybe I can use the FileSystemView isTraversable(File f) method in my TreeCellRenderer class to check if anything is in the directory.
But I still need to know how to disable the expand / collapse icon for such a node.

Change behaviour of Expand/collapse icon in JTree

Want to change the behaviour of Expand/collapse icon in a JTree. Need help with the same. Thanks.

Check: Hide and show region

JTree remove expand/collapse cross button...??

Hi all,
I have forbidden tree collapsing (by default it is fully expanded),
and I want to remove expand/collapse cross buttons that actually are used to expand/collapse tree nodes.
Is it possible and can anyone give me advice how i can do this.
Thanks in advance.

I tried extending the BasicTreeUI to return nulls for the collapsed and exapnded icons as shown in the code below. For the most part, it works great! However, one can still expand/collapse the tree by clicking on the point where the vertical and horizontal lines connect.
I guess some one else will take over from here.
import java.awt.BorderLayout;
import javax.swing.Icon;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.WindowConstants;
import javax.swing.plaf.basic.BasicTreeUI;
import javax.swing.tree.DefaultMutableTreeNode;
public class Temp extends JFrame {
     private JTree tree = null;
     public Temp() {
          super("Test");
          setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
          initComponents();
          pack();
          setVisible(true);
     private void initComponents() {
          DefaultMutableTreeNode rootNode =
               new DefaultMutableTreeNode("User Preferences", true);
          DefaultMutableTreeNode connectionSettingsNode =
               new DefaultMutableTreeNode("Connection Settings", true);
          DefaultMutableTreeNode sslNode =
               new DefaultMutableTreeNode("SSL", false);
          DefaultMutableTreeNode firewallNode =
               new DefaultMutableTreeNode("Firewall", false);
          DefaultMutableTreeNode securityNode =
               new DefaultMutableTreeNode("Security", true);
          DefaultMutableTreeNode serverCertificatesNode =
               new DefaultMutableTreeNode("Server Certificates", false);
          DefaultMutableTreeNode clientCertificatesNode =
               new DefaultMutableTreeNode("Client Certificates", false);
          connectionSettingsNode.add(sslNode);
          connectionSettingsNode.add(firewallNode);
          securityNode.add(serverCertificatesNode);
          securityNode.add(clientCertificatesNode);
          rootNode.add(connectionSettingsNode);
          rootNode.add(securityNode);
          tree = new JTree(rootNode);
          JScrollPane scroller = new JScrollPane(tree);
          getContentPane().add(scroller, BorderLayout.CENTER);
          tree.setUI(new MyTreeUI());
          //tree.setShowsRootHandles(false);
     public static void main(String args []) {
          new Temp();
     class MyTreeUI extends BasicTreeUI {
          public Icon getCollapsedIcon() {
               return null;
          public Icon getExpandedIcon() {
               return null;
}Sai Pullabhotla

JTree without expand/collapse icons

I want to be able to hide or change the expand/collapse icon of a specific node, not the entire Jtree.
Is there any way to do that?
Tahnx

I want to be able to hide or change the expand/collapse icon of a specific node, not the entire Jtree.
Is there any way to do that?
Tahnx

Expand/Collapse feature in table maintenance view

Hello experts,
We have created a custom table and maintenace view. For some table rows, the only key value difference is an EFFECTIVE DATE. The generated table maintenace dialog by default "Collapses" the rows that only differ by Effective Date. Using the Expand <-> Collapse button, we can see the missing detail for individual rows.
Can the maintenace dialog be expanded by default?

Hi,
See the given link, It may help to you.
maintenance view
Regards,
Shamma

Expand/Collapse a block in a selection screen

Hey Folks,
I have a requirement , where I have a selection screen, with 3 selection blocks. I have a requirement that I need to make 2 of these blocks expandible/collapsible on the toggle of a button.. How can this be achieved.
In case of a normal screen, I would have had to create the blocks as subscreens (one type of screen for expanded state...another for collapsed state) and called it from the main screen. But how do I achieve the same using the selection screens?
I was considering creating the blocks as subscreens in the selection screen and calling them in the PBO of the main selection screen. However, I am unsure if thats a wise thing to do since the screen is generated automatically in case of a selection screen and I do believe its not a good idea to manually alter it.
Does anyone has any pointers on this?
Thanks and Best Regards,
Puja.

Hi,
I have modified the code to show the expand/collapse ICON accordingly..Please check..
TABLES sscrfields.
TYPE-POOLS icon.
* Expand/collapse buttons.
SELECTION-SCREEN BEGIN OF LINE.
SELECTION-SCREEN PUSHBUTTON 2(23) b1 USER-COMMAND usr1.
SELECTION-SCREEN END OF LINE.
* Block 1
SELECTION-SCREEN BEGIN OF BLOCK b1.
PARAMETERS: p_test1 TYPE char10 MODIF ID m1,
            p_test2 TYPE char10 MODIF ID m1.
SELECT-OPTIONS s_date FOR sy-datum MODIF ID m1.
SELECTION-SCREEN END OF BLOCK b1.
* Block 2
SELECTION-SCREEN BEGIN OF LINE.
SELECTION-SCREEN PUSHBUTTON 2(23) b2 USER-COMMAND usr2.
SELECTION-SCREEN END OF LINE.
SELECTION-SCREEN BEGIN OF BLOCK b2.
PARAMETERS: p_test3 TYPE char10 MODIF ID m2,
            p_test4 TYPE char10 MODIF ID m2.
SELECTION-SCREEN END OF BLOCK b2.
* Declarations
DATA: v_flag, v_flag1.
INITIALIZATION.
b1 = 'Button1'.
b2 = 'Button2'.
v_flag = 'X'.
v_flag1 = 'X'.
AT SELECTION-SCREEN.
* Check the user command.
IF sy-ucomm = 'USR1'.
    IF v_flag IS INITIAL.
      v_flag = 'X'.
    ELSE.
      CLEAR v_flag.
    ENDIF.
ELSEIF sy-ucomm = 'USR2'.
    IF v_flag1 IS INITIAL.
      v_flag1 = 'X'.
    ELSE.
      CLEAR v_flag1.
    ENDIF.
ENDIF.
AT SELECTION-SCREEN OUTPUT.
IF v_flag1 = 'X'.
    CALL FUNCTION 'ICON_CREATE'
      EXPORTING
        name   = icon_expand
        text   = 'Button 2'
        info   = 'Button 2'
      IMPORTING
        RESULT = b2
      EXCEPTIONS
        OTHERS = 0.
ELSEIF v_flag1 IS INITIAL.
    CALL FUNCTION 'ICON_CREATE'
      EXPORTING
        name   = icon_collapse
        text   = 'Button 2'
        info   = 'Button 2'
      IMPORTING
        RESULT = b2
      EXCEPTIONS
        OTHERS = 0.
ENDIF.
IF v_flag = 'X'.
    CALL FUNCTION 'ICON_CREATE'
      EXPORTING
        name   = icon_expand
        text   = 'Button 1'
        info   = 'Button 1'
      IMPORTING
        RESULT = b1
      EXCEPTIONS
        OTHERS = 0.
ELSEIF v_flag IS INITIAL.
    CALL FUNCTION 'ICON_CREATE'
      EXPORTING
        name   = icon_collapse
        text   = 'Button 1'
        info   = 'Button 1'
      IMPORTING
        RESULT = b1
      EXCEPTIONS
        OTHERS = 0.
ENDIF.
LOOP AT SCREEN.
* Expand collapse block1
    IF v_flag = 'X' AND screen-group1 = 'M1'.
      screen-active = 0.
    ELSEIF v_flag IS INITIAL AND screen-group1 = 'M1'.
      screen-active = 1.
    ENDIF.
* Expand collapse block2
    IF v_flag1 = 'X' AND screen-group1 = 'M2'.
      screen-active = 0.
    ELSEIF v_flag1 IS INITIAL AND screen-group1 = 'M2'.
      screen-active = 1.
    ENDIF.
    MODIFY SCREEN.
ENDLOOP.
Thanks
Naren

[Forum FAQ] How to use parameter to control the Expand/Collapse drill-down options in SSRS report?

In SQL Server Reporting Services (SSRS), drill-down is an action we can apply to any report item to hide and show other report items. They all are ways that we can organize and display data to help our users understand our report better. In this article,
we are talking about how to use parameter to control the Expand/Collapse drill-down options in SSRS report.
Consider that the report has a dataset (dsSales) with following fields: SalesTerritoryGroup, SalesTerritoryCountry, CalendarYear, SalesAmount.
1. The report has the following group settings:
Parent Group: SalesTerritoryGroup
Child Group: SalesTerritoryCountry
  Child Group: CalendarYear
   Details: SalesAmount
2. Add three parameters in the report:
GroupExpand:
Available Values: “Specify values”
Label: Yes           Value: Yes
Label: No            Value: No
Default Values: “Specify values”
Value: Yes
CountryExpand:
Available Values: “Specify values”
Label: Yes           Value: =IIF(Parameters!GroupExpand.Value="No",Nothing,"Yes")
Label: No            Value: No
Default Values: “Specify values”
Value: =IIF(Parameters!GroupExpand.Value="No","No","Yes")
YearExpand:
Available Values: “Specify values”
Label: Yes
Value: =IIF(Parameters!GroupExpand.Value="No" or Parameters!CountryExpand.Value="No",Nothing,"Yes")
Label: No            Value: No
Default Values: “Specify values”
Value: =IIF(Parameters!GroupExpand.Value="No" or Parameters!CountryExpand.Value="No","No","Yes")
3. Right click SalesTerritoryCountry icon in the Row Groups dialog box, select Group Properties.
4. Click Visibility in the left pane. Select “Show or hide based on an expression” and type with following expression:
=IIF(Parameters!GroupExpand.Value="Yes", False, True)
Select “Display can be toggled by this report item” option, and select “SalesTerritoryGroup” in the drop down list.
5. Use the same method setting CalendarYear, (Details) drill-down with following expression:
=IIF(Parameters!CountryExpand.Value="Yes", False, True)
=IIF(Parameters!YearExpand.Value="Yes", False, True)
6. Click SalesTerritoryGroup text box in the tablix. Select InitialToggleState property in the Properties dialog box, and type following expression:
=IIF(Parameters!GroupExpand.Value="Yes", True, False)
7. Use the same method setting SalesTerritoryCountry, CalendarYear text box with following expression:
=IIF(Parameters!CountryExpand.Value="Yes", True, False)
=IIF(Parameters!YearExpand.Value="Yes", True, False)
After that, when we preview the report, we can use these three parameters to expand/collapse drill-down.
Note:
In our test, we may meet following issue. We can check the expression of InitialToggleState property to troubleshooting the issue.
Applies to
Reporting Services 2008
Reporting Services 2008 R2
Reporting Services 2012

In SQL Server Reporting Services (SSRS), drill-down is an action we can apply to any report item to hide and show other report items. They all are ways that we can organize and display data to help our users understand our report better. In this article,
we are talking about how to use parameter to control the Expand/Collapse drill-down options in SSRS report.
Consider that the report has a dataset (dsSales) with following fields: SalesTerritoryGroup, SalesTerritoryCountry, CalendarYear, SalesAmount.
1. The report has the following group settings:
Parent Group: SalesTerritoryGroup
Child Group: SalesTerritoryCountry
  Child Group: CalendarYear
   Details: SalesAmount
2. Add three parameters in the report:
GroupExpand:
Available Values: “Specify values”
Label: Yes           Value: Yes
Label: No            Value: No
Default Values: “Specify values”
Value: Yes
CountryExpand:
Available Values: “Specify values”
Label: Yes           Value: =IIF(Parameters!GroupExpand.Value="No",Nothing,"Yes")
Label: No            Value: No
Default Values: “Specify values”
Value: =IIF(Parameters!GroupExpand.Value="No","No","Yes")
YearExpand:
Available Values: “Specify values”
Label: Yes
Value: =IIF(Parameters!GroupExpand.Value="No" or Parameters!CountryExpand.Value="No",Nothing,"Yes")
Label: No            Value: No
Default Values: “Specify values”
Value: =IIF(Parameters!GroupExpand.Value="No" or Parameters!CountryExpand.Value="No","No","Yes")
3. Right click SalesTerritoryCountry icon in the Row Groups dialog box, select Group Properties.
4. Click Visibility in the left pane. Select “Show or hide based on an expression” and type with following expression:
=IIF(Parameters!GroupExpand.Value="Yes", False, True)
Select “Display can be toggled by this report item” option, and select “SalesTerritoryGroup” in the drop down list.
5. Use the same method setting CalendarYear, (Details) drill-down with following expression:
=IIF(Parameters!CountryExpand.Value="Yes", False, True)
=IIF(Parameters!YearExpand.Value="Yes", False, True)
6. Click SalesTerritoryGroup text box in the tablix. Select InitialToggleState property in the Properties dialog box, and type following expression:
=IIF(Parameters!GroupExpand.Value="Yes", True, False)
7. Use the same method setting SalesTerritoryCountry, CalendarYear text box with following expression:
=IIF(Parameters!CountryExpand.Value="Yes", True, False)
=IIF(Parameters!YearExpand.Value="Yes", True, False)
After that, when we preview the report, we can use these three parameters to expand/collapse drill-down.
Note:
In our test, we may meet following issue. We can check the expression of InitialToggleState property to troubleshooting the issue.
Applies to
Reporting Services 2008
Reporting Services 2008 R2
Reporting Services 2012

How do I remove the "TOC" btn in the playbar WITHOUT removing the TOC "Expand/Collapse" icon?

I am working in CP7 on a project with a Table of Contents that is set to 'Overlay'. The client has requested that I remove the "TOC" button in the playbar, without removing the TOC "Expand/Collapse" icon, so that the user can still hide/reveal the TOC when necessary. The only control I can find is the "Show TOC" checkbox under Project > Table of Contents. However, un-checking this option removes both the "TOC" button AND the "Expand/Collapse" icons. Is it possible to remove just the "TOC" button in the playbar?

If you are using SWF output you can always edit the playbar in Flash and remove it.
If HTML5 you can edit the JavaScript out put to remove the button from the playbar.

Expand/Collapse all the Bookmarks in a PDF file

Hi,
This is my first message on the board :-)
I work with very large PDF files (i.e 2000 pages, 700 bookmarks on 5 or 6 levels!) and I'm looking for a script (Acrobat 9 Pro) allowing to expand/collapse all the bookmarks in a PDF file.
Thanks in advance for your valuable help,
Cheers
Antonella

The Acrobat Javascript Scripting reference (http://partners.adobe.com/public/developer/en/acrobat/sdk/AcroJS.pdf) describes how to use scripting to access bookmarks and how to open and close them, which is what you're looking for.
I suggest you read the reference and make a function that will do the job for you.
That's the way I would do it.
I don't think you can access the keyboard shortcuts "/" and "Shift + *" via scripting.
Torben.

ADF TreeTable: selective expand/collapse of rows

Hi
I have a query. How can i selectively expand or collapse nodes in a Tree Table. I have got the tree model but i need to expand even further so that the nodes can be expanded/collapsed initially based on some logic.
It would be of great hhelp if any1 has some solution to it

This doesnt work
What i am doing:
1. I have a TreeTable
2. Its value is a TreeModel whose each node is my customized Object : MyObject
So if i use this kinda code which is in ur tutorial
CollectionModel model = (CollectionModel)tree1.getValue();
treeBinding = (JUCtrlHierBinding)model.getWrappedData();
I get a classcastexception:
MyObject cannot be cast to oracle.jbo.uicli.binding.JUCtrlHierBinding
since model.getWrappedData(); returns the root node of the tree which should be of my customized Object type

Outlook 2013 - Online Archive folders do not remember expand / collapse

For our QA group, we have just upgraded them from Office 2010 to Office 2013 SP1. We have one user that noticed something. With Outlook 2010, the client would remember which folders he had expanded or collapsed under his "Archive" (the online archive
generated by the Archiving feature of Exchange server). However, once we upgraded him to Outlook 2013, this is no longer true. Now, the "Online Archive" header is fully collapsed when he open Outlook every time.
To test, I created a small folder structure with some items in my own "Online Archive" section and was able to reproduce this behavior. Outlook 2013 will remember which folders are expanded or collapsed for the folders in my Inbox but not for the
folders in my Archive. Is there a way to have Outlook 2013 remember the expand / collapse settings for the Archive?

Hi,
I'm marking the reply as answer as there has been no update for a couple of days.
If you come back to find it doesn't work for you, please reply to us and unmark the answer.
Best Regards,
Steve Fan
Forum Support
Come back and mark the replies as answers if they help and unmark them if they provide no help.
If you have any feedback on our support, please click
here

Expand/collapse button functionality on module pool screen

Hi ,
I want to design a module pool screen with a expand/collapse button on it.
The desired functionality associated with this button would be something similiar to that available in ME21N screen. When the expand button is clicked it should open up a section of screen that allows the user to enter some parameter. Based on this parameter some selections from DB can be perfomed and then displayed below it.
Any pointers on how to achieve this? Any kind of help would be appreciated.
Regards-
Harmeet Singh.

example for three pushbutton with expand collapse .
First of all define your push button as output field with icon tick in the pushbutton characteristick,
then define this pushbutton in top_include
include <icon>.
data : push_a1 like icons-l4,
         push_a2 like icons-l4,
         push_a3 like icons-l4.
data : a1 ,
         a2,
         a3.
in pai of the screen
suppose i had assign function code a1 ,a2 , a3 for repective pushbutton
module user_command_9002 input.
okcd = ok_code.
clear ok_code.
case okcd.
    when 'A1'.
      if a1 is initial.
        a1 = 'X'.
      else.
        clear a1.
      endif.
    when 'A2'.
      if a2 is initial.
        a2 = 'X'.
      else.
        clear a2.
      endif.
    when 'A3'.
      if a3 is initial.
        a3 = 'X'.
      else.
        clear a3.
      endif.
endcase.
endmodule.                 " USER_COMMAND_9002 INPUT
define three seprate screen -group for three pushbutton say a1 a2 a3
during pbo you can directly assign name of icon .
if a1 is initial.
    push_a1 = icon_collapse.
else.
    push_a1 = icon_expand.
endif.
if a2 is initial.
    push_a2 = icon_collapse.
else.
    push_a2 = icon_expand.
endif.
if a3 is initial.
    push_a3 = icon_collapse.
else.
    push_a3 = icon_expand.
endif.
loop at screen.
    if screen-group1 = 'A1'.
      if a1 = 'X'.
        screen-invisible = 1.
        screen-input = 0.
        modify screen.
      else.
        screen-active = 1.
        screen-invisible = 0.
        screen-input = 1.
      endif.
    elseif screen-group1 = 'A2'.
      if a2 = 'X'.
        screen-invisible = 1.
        screen-input = 0.
        modify screen.
      else.
        screen-active = 1.
        screen-invisible = 0.
        screen-input = 1.
      endif.
    elseif screen-group1 = 'A3'.
      if a3 = 'X'.
        screen-invisible = 1.
        screen-input = 0.
        modify screen.
      else.
        screen-active = 1.
        screen-invisible = 0.
        screen-input = 1.
      endif.
    endif.
endloop.
regards,
Alpesh
Edited by: Alpesh on May 28, 2009 10:28 AM

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