Well... for handling the state of the tree, you can name your tree limbs 000 001 002 003 etc in order, which is basically your key into an array or something, so when it is clicked you can either expand it, collapse it or view its contents. Then a child of 002 is 002000 002001 etc, which makes it easy to maintain hierarchy. Then just maintain your state in either hidden fields or a cookie, or in a file or DB on the server. It's not terribly hard to maintain if you do it right, but I might be misinterpreting your question.
                - Ant

In reply to Re: building an HTML based tree UI by suaveant
in thread building an HTML based tree UI by jptxs

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.