[Echo-list] Expandable Table (client side)

[Mark S. <msa...@be...>]

I need to build a table that allows you to expand/contract rows like in a 
Tree, and do so on the client side (ie. javascript). For example, one row 
could be a sum of other rows, and the table could be displayed like:

   Row1  123456
+Row2 (total)   999999
   Row3  347913

When the + next to Row2 is clicked, you get this:

   Row1  123456
- Row2 (total)  999999
   Row2a 111111
   Row2b 888888
   Row3  347913


I don't think there are any components in echo or echopoint that can do 
this, either from the client or server side. I thought about merging a tree 
and a table, but have not taken any overt steps so far.

Any ideas on how this could be done with a minimum of reinventing the wheel 
would be great. On the server side, it seems like you could hide rows until 
they are needed. You would listen for the + being clicked then fire a 
change to the table structure, adding in the rows that were "hidden" 
before. (Any vice versa when - is clicked.) However, that type of server 
side interaction is likely going to be way too slow.