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2009-10-03T08:37:55.987
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2015-07-16T14:31:29.117
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2015-07-16T14:31:29.117
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You could use <a href="https://docs.jboss.org/richfaces/latest_3_3_X/en/devguide/html/rich_changeExpandListener.html" rel="nofollow noreferrer">ChangeExpandListener</a> The <code><rich:changeExpandListener></code> represents an action listener method that is notified on an expand/collapse event on the node. EDIT: First changeExpandListener has to be delared as attribute for <code><rich:treeNode></code>, if is declared for entired tree works as you write (event is processed after selection event). So: <pre><code><rich:tree value="#{simpleTreeBean.treeNode}" var="item" > <rich:treeNode changeExpandListener="#{simpleTreeBean.processExpansion}"> <h:outputText value="#{item}" /> </rich:treeNode> </rich:tree> </code></pre> processExpansion method must take NodeExpandedEvent as a parameter but there is no need to implement interface org.richfaces.event.NodeExpandedListener. <pre><code>public void processExpansion(NodeExpandedEvent evt) { Object source = evt.getSource(); if (source instanceof HtmlTreeNode) { UITree tree = ((HtmlTreeNode) source).getUITree(); if (tree == null) { return; } // get the row key i.e. id of the given node. Object rowKey = tree.getRowKey(); // get the model node of this node. TreeRowKey key = (TreeRowKey) tree.getRowKey(); TreeState state = (TreeState) tree.getComponentState(); if (state.isExpanded(key)) { System.out.println(rowKey + " - expanded"); } else { System.out.println(rowKey + " - collapsed"); } } } </code></pre> That's should help 
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1. POIs there an event for collapsing a rich:tree node?
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1. USSubodh Joshi
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1. UScetnar
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1. POIs there an event for collapsing a rich:tree node?
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1. COHow can I distinguish collapse from expand? I use client side collapsing and the event listener is triggered upon submit of the tree - for example when changing the selection. I get one event per expanded node at this point... could not see any for collapsed nodes so far.
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 USDaniel Bleisteiner
2. COThanks! That will help.
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 USDaniel Bleisteiner

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Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.