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Now I can answer the second part of my question
myself. I added a value change listener to the selectBooleanCheckbox
and maintain a collection with the selected nodes in the backing bean’s
nodeChanged Listener. So my original problem is solved. <t:selectBooleanCheckbox
value="#{node.checked}" valueChangeListener="#{SearchControllerBean.treeController.nodeChanged}" title="#{node.identifier}"/> But I’m still interested in the usage of the
t:treeCheckbox tag inside a tree2. From:
Michael Heinen [mailto:[EMAIL PROTECTED] Hi all, Could anybody tell me how to use the t:treeCheckbox
tag? Can I use this tag with the tree2 component? I have a TreeNode (serverSideToggle) with many nodes
and I used the nightly TreeNodeChecked class to add checkboxes before my leaf
nodes. This is working fine so far. But I have to process the whole tree in my Listeners
to find the selected nodes. Is it possible to store the selected checkboxes of a
tree2 in a String[] or a similar container? This would simplify or improve my backend processing. Below are code snippets: Thanks for any comments or help Michael
<t:tree2 id="serverTree"
value="#{SearchControllerBean.treeController.treeData}" var="node" varNodeToggler="t" clientSideToggle="false" showRootNode="true"> <f:facet name="document"> <h:panelGroup> <h:selectBooleanCheckbox
value="#{node.checked}"/>
<h:commandLink immediate="true"
styleClass="#{t.nodeSelected
? 'documentSelected':'document'}" actionListener="#{t.setNodeSelected}">
<h:outputText value="#{node.description}"/>
<f:param name="docNum"
value="#{node.identifier}"/>
</h:commandLink> </h:panelGroup> </f:facet> </t:tree2> TreeController is just a copied TreeBacker from MyFaces
samples. public
class TreeController implements Serializable {
private TreeModelBase _treeModel;
private HtmlTree _tree;
private String _nodePath;
TreeNode treeData;
public TreeController(){
//dummy initialization: do this not in the constructor!
treeData = new TreeNodeBase("root-folder", "All",
false);
TreeNodeBase catNode = new TreeNodeBase("categories",
"folder1", false);
catNode.getChildren().add(new TreeNodeChecked("document", "doc1,
true, true));
catNode.getChildren().add(new TreeNodeChecked("document",
"doc2", true));
catNode.getChildren().add(new TreeNodeChecked("document",
"doc3", true));
catNode.getChildren().add(new TreeNodeChecked("document",
"doc4", true));
treeData.getChildren().add(catNode);
catNode = new TreeNodeBase("categories", "folder2", false);
catNode.getChildren().add(new TreeNodeChecked("document",
"doc5", true));
catNode.getChildren().add(new TreeNodeChecked("document",
"doc6", true));
treeData.getChildren().add(catNode);
}
public TreeNode getTreeData(){
return treeData;
}
public TreeModel getExpandedTreeData(){
return new TreeModelBase(getTreeData());
}
public void setTree(HtmlTree tree){
_tree = tree;
}
public HtmlTree getTree(){
return _tree;
}
public String expandAll(){
_tree.expandAll();
return null;
}
public void setNodePath(String nodePath){
_nodePath = nodePath;
}
public String getNodePath(){
return _nodePath;
}
public void checkPath(FacesContext context, UIComponent component, Object
value){
FacesMessage message = null;
String path[] = _tree.getPathInformation(value.toString());
for(int i = 0; i < path.length; i++){
String nodeId = path[i];
try{
_tree.setNodeId(nodeId);
}
catch(Exception e){
throw new ValidatorException(message, e);
}
if(_tree.getNode().isLeaf()){
message = new FacesMessage(FacesMessage.SEVERITY_ERROR, "Invalid node path
(cannot expand a leaf): " + nodeId, "Invalid node path (cannot expand
a leaf): " + nodeId);
throw new ValidatorException(message);
}
}
}
public void expandPath(ActionEvent event) {
_tree.expandPath(_tree.getPathInformation(_nodePath));
} }
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