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Martin Grigorov commented on WICKET-3449: ----------------------------------------- treeModel.nodeStructureChanged() also solves your problem: public void onClick(AjaxRequestTarget ajaxRequestTarget) { DefaultMutableTreeNode child = new DefaultMutableTreeNode("child"); root.add(child); // it doesn't matter how we add this child treeModel.nodeStructureChanged(root); tree.updateTree(ajaxRequestTarget); } > Tree doesn't update correctly > ----------------------------- > > Key: WICKET-3449 > URL: https://issues.apache.org/jira/browse/WICKET-3449 > Project: Wicket > Issue Type: Bug > Components: wicket > Affects Versions: 1.4.15 > Environment: tomcat 6.0.26, win 7 > Reporter: Sergey Plevko > Assignee: Martin Grigorov > Attachments: 3.jpg, quickStart.zip > > > When we add a first child to the root node junction link (near the root) > doesn't appear in the tree. > This bug easily can be reproduced with the next piece of code. > TestPage.html > <html xmlns="http://www.w3.org/1999/xhtml" > xmlns:wicket="http://wicket.apache.org/dtds.data/wicket-xhtml1.4-strict.dtd"> > <body> > <table> > <tr> <td> <div wicket:id="tree"></div> </td> > </tr> > <tr> <td> <input type="submit" wicket:id="addChild" > class="btn btnStd" /> </td> </tr> > </table> > </body> > </html> > TestPage.java > public class TestPage extends WebPage { > public TestPage() { > final DefaultMutableTreeNode root = new > DefaultMutableTreeNode("root"); > final DefaultTreeModel treeModel = new DefaultTreeModel(root); > final BaseTree tree = new LinkTree("tree", treeModel); > add(tree); > tree.getTreeState().expandNode(root); > AjaxLink addButton = new AjaxLink("addChild") { > public void onClick(AjaxRequestTarget ajaxRequestTarget) { > DefaultMutableTreeNode child = new > DefaultMutableTreeNode("child"); > root.add(child); // it doesn't matter how we add this child > treeModel.insertNodeInto(child, root, 0); > tree.updateTree(ajaxRequestTarget); > } > }; > add(addButton); > } > } -- This message is automatically generated by JIRA. - For more information on JIRA, see: http://www.atlassian.com/software/jira