I'd like to raise several issues I've seen with trees. Maybe they've
been solved and I just don't know it.
1. Tree widgets sometimes require MIE on Windows version 5.5+ which
makes them suitable for intranets but not for the Internet.
2. Tree widgets sometimes have such small click targets or labels
that they are difficult to operate from that standpoint. Sometimes
they don't respond to font-enlargement controls in the browser.
3. Technologists are more familiar with trees than end users, so some
people just don't know what to do with trees. They click on the wrong
place (such as the folder or label instead of the plus, etc.) and
nothing happens, so they give up.
4. Sometimes the technology used to generate the tree adds so much
overhead to the page load time that the tradeoff isn't worth it.
5. Mixed metaphors, such as scrolling trees inside of tabbed windows
or frames make for too many scrollbars next to each other and
confusing interaction results.
6. Some trees won't let you open/close all the nodes at once.
Does anyone know of trees that don't have any or most of these weaknesses?