Examples of org.zkoss.zul.Treechildren$ExtraCtrl

org.zkoss.zul.Treechildren
A utility class to implement {@link #getExtraCtrl}. It is used only by component developers.


    private void expandAll(Treeitem item) {
        item.setOpen(true);


        Set<Treeitem> childrenSet = new HashSet<Treeitem>();
        Treechildren children = item.getTreechildren();
        if(children != null) {
            childrenSet.addAll((Collection<Treeitem>) children.getItems());
        }


        for(Treeitem each: childrenSet) {
            expandAll(each);
        }

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            expandAll(each);
        }
    }


    public void collapseAll() {
        Treechildren children = tree.getTreechildren();
        for(Treeitem each: (Collection<Treeitem>) children.getItems()) {
            each.setOpen(false);
        }
    }

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     *
     * @param materialCategory
     * @return
     */
    private Component findInMaterialCategoryTree(MaterialCategory materialCategory) {
        final Treechildren children = categoriesTree.getTreechildren();
        for(Treeitem each: (Collection<Treeitem>) children.getItems()) {
            final MaterialCategory _materialCategory = (MaterialCategory) each.getValue();
            final Textbox textbox = getMaterialCategoryTextbox(each);
            // Clear previous errors
            textbox.clearErrorMessage();
            if (_materialCategory.equals(materialCategory)) {

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