Posted by David T. Ashley on 06/12/07 14:20

In my application, I'm going to have a navigation pane (i.e. frames) on the
left that links to pages that display in the main window. The list of
choices varies by user, but once a user logs in, it is always the same list.

I'm going to arrange this pane as a hierarchical list of headings,
subheadings, and links, i.e. something like:

Number Theory Tools
Euclid's GCD Algorithm
Continued Fraction Expansion of a Rational Number
LCM
Miller-Rabin Probable Primality Test
Calculation Tools
Arbitrary Expression Evaluation

Etc.

Because there will be so many choices, I'd like to have the ability to
collapse and uncollapse parts of the list, hierarchically. One should, for
example, be able to "collapse" the "Number Theory Tools" part of the list so
that only the heading shows, then uncollapse it later.

What is the best way to accomplish this?

Are there any clever tricks to avoid re-loading the left pane on each
collapse/expand?

Thanks.
--
David T. Ashley (dta@e3ft.com)
http://www.e3ft.com (Consulting Home Page)
http://www.dtashley.com (Personal Home Page)
http://gpl.e3ft.com (GPL Publications and Projects)

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