[Solved] Reset p:tree selected values

[tech4]

I need to reset the selected values in a p:tree. I create a reset button in the form where i put my p:tree element. That button put the selected values of the tree as null values. In the backing bean the values are clear when i press this button. But in the interface even when I refresh the page the old selected value still marked. Here is my code:

p:tree

Code: Select all

<p:tree id="treeClassifier" 
        value="#{navBarController.rootClassifier}" 
        var="node"          
        selectionMode="checkbox" 
        selection="#{navBarController.selectedClassifiers}" 
        style="height: 100px;width: 280px; margin-bottom: 0px; overflow: auto">
      <p:treeNode expandedIcon="ui-icon-folder-open" 
                  collapsedIcon="ui-icon-folder-collapsed">
         <h:outputText value="#{node.description}(#{node.code})"/> 
      </p:treeNode> 
</p:tree>

Create the tree:

Code: Select all

public TreeNode initTree(GenericTree<Classifier> tree) {
        GenericTreeNode<Classifier> root = tree.getRoot();
        TreeNode rootJSF = new DefaultTreeNode("root", null);
        for (GenericTreeNode<Classifier> gnt : root.getChildren()) {
            if (gnt.getData().getId() != -1) {
                TreeNode childTree = new DefaultTreeNode(gnt.getData(), rootJSF);
                //rootJSF.getChildren().add(childTree);
                //f_aux(gnt, rootJSF);
                addChildsToTree(gnt, childTree);
            }
        }
        return rootJSF;
    }

    public void addChildsToTree(GenericTreeNode<Classifier> parent, TreeNode parentJSF) {
        for (GenericTreeNode<Classifier> child : parent.getChildren()) {
            TreeNode newNode = new DefaultTreeNode(child.getData(), parentJSF);
            //parentJSF.getChildren().add(newNode);
            addChildsToTree(child, newNode);
        }
    }

The reset function:

Code: Select all

public void reset() {
       ....
       this.selectedClassifiers = null;
}

What is wrong in my code?

[andyba]

You need to unselect the all selected TreeNodes and update the p:tree component. The selectedNodes array is only there for your information not to control what is and isn't selected.
EDIT: I am actually getting reacquainted with p:tree...

If you are dealing with selection yourself you can ignore the selectedNode array completely or you can manage it yourself using all the ajax events available.
Be warned: you still need to supply a setSelectedNodes(TreeNode[] selectedNodes) method BUT you should not change the state of the array in your backing bean from it.
This is why you need to manage select and unselect events yourself ie. you are taking over the selection management yourself and in total.

[tech4]

Thanks for the answer. I updated the tree, unselecting the selected nodes, and the problem is solved.