final MutableTreeNode treeNode = createTreeNode(dialogPage); if (treeNode instanceof MutableTreeNodeEx) { ((MutableTreeNodeEx) treeNode).setEnabled(dialogPage.isPageEnabled());
final MutableTreeNode treeNode = createTreeNode(dialogPage); if (treeNode instanceof MutableTreeNodeEx) { ((MutableTreeNodeEx) treeNode).setEnabled(dialogPage.isPageEnabled());