Create a hierarchical dynamic grid with GWT -

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i'm trying create grid in gwt representing hierarchical data. columns different levels same , represent if product available category or not.

something that:

                      | b | c | d + product 1.1         x       x   x   + product 1.2       x       x   x     + product 1.3     x           x + product 2.1             x   + product 2.2           x ...

i though use celltable , add handlers show/hide rows, how shall manage hiding descendant?

basically, work in mvc. controller catches event, update model, , asks dataprovider refresh display.

the simplest can think of when catch event asking hide descendant of, instance, product 2.1, cycle through model objects (a list guess) , update child element accordingly. refresh celltable using appropriate methods on dataprovider.


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