Developer Network Home - Help

YUI Library Examples: TreeView Control: Custom TreeView with Check Boxes

TreeView Control: Custom TreeView with Check Boxes

The TaskNode example implements a task list using treeview. It does so by extending the TextNode class to have additional, specific functionality. In this example, each TaskNode has three potential states: Checked, partially-checked (not all subtasks complete), and unchecked. Checking off a task automatically checks off all subtasks.

The TaskNode Subclass

This example explores the extension of TreeView via a subclass of the TextNode class. The full source of the TaskNode subclass follows:

Configuration for This Example

You can load the necessary JavaScript and CSS for this example from Yahoo's servers. Click here to load the YUI Dependency Configurator with all of this example's dependencies preconfigured.

Copyright © 2016 Yahoo! Inc. All rights reserved.

Privacy Policy - Copyright Policy - Job Openings