How to expand all the nodes in a tree while loading the tree initially

Hi All
Now i am able to display the tree strucute in webdynpro.
but it is displaying the tree initially in collapsed mode until/unless we click on the node root it will be expanded.
but my requirement is i wanted to display the tree in expanded mode by default at runtime initially.
can you please provide any setting to be done or any sample code on the same then it would be great help to me.??
Thanks
Trisha

Hi,
isLeaf is an attribute you need to create under "CatalogEntries" node. And "isRoot" is not requried.
Download the sample project "TutWD_TreeByNestingTableColumn". See the below link to dnld this project.
https://www.sdn.sap.com/irj/sdn/index?rid=/webcontent/uuid/503f22f6-b978-2a10-bf97-ddc21267e752 [original link is broken]
Do the changes in sample project as below:
Invoke this method in the init method as below (as it is in the same project).
addCatalogEntries(wdContext.nodeCatalogEntries(), "ROOT");
Change the code in addCatalogEntries() method as below.
Here we are calling the addCatalogEntries() method recursively for all the parent elements and we are changing the setExpanded property to true.
public void addCatalogEntries( com.sap.tut.wd.treetable.wdp.IPrivateTreeTableView.ICatalogEntriesNode node, java.lang.String parentId )
//@@begin addCatalogEntries()
IPrivateTreeTableView.ICatalogEntriesElement newCatalogEntriesElement;
for (int i = 0; i < Catalog.getLength(); i++) {
if (parentId.equals(Catalog.getParentId(i))) {
// create new context node element
newCatalogEntriesElement = node.createCatalogEntriesElement();
node.addElement(newCatalogEntriesElement);
// provide node elements with data
newCatalogEntriesElement.setID(Catalog.getCATALOGID(i));
newCatalogEntriesElement.setTITLE(Catalog.getTITLE(i));
newCatalogEntriesElement.setDESCRIPTION(Catalog.getDESCRIPTION(i));
newCatalogEntriesElement.setAMOUNT(Catalog.getAMOUNT(i));
if ("ARTICLE".equals(Catalog.getCATALOGTYPE(i))) {
// checkbox is visible by default
newCatalogEntriesElement.setPUBLISHED(Catalog.getPUBLISHED(i));
// third level is last level
newCatalogEntriesElement.setIsLeaf(true);
} else {
// a CATEGORY does not use the checkbox column
newCatalogEntriesElement.setUsageOfPublishedAttribute(WDVisibility.BLANK);
newCatalogEntriesElement.setIsLeaf(false);
newCatalogEntriesElement.setChildrenLoaded(true);
newCatalogEntriesElement.setExpanded(true);
addCatalogEntries(newCatalogEntriesElement.nodeChildCatalogEntries(),newCatalogEntriesElement.getID());

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https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/40890eda-1b99-2a10-2d8b-a18b9108fc38
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/people/sap.user72/blog/2006/07/23/invalid-characters-in-sap-bw-3x-myths-and-reality-part-2
/people/sap.user72/blog/2006/07/08/invalid-characters-in-sap-bw-3x-myths-and-reality-part-1
/people/aaron.wang3/blog/2007/09/03/steps-of-including-one-special-characters-into-permitted-ones-in-bi
http://help.sap.com/saphelp_nw04/helpdata/en/64/e90da7a60f11d2a97100a0c9449261/frameset.htm
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Edited by: Jitu Krishna on Mar 22, 2008 1:52 PM

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