Hi,

My customer wants to have fancy grids:
- group certain rows as "category" (in above screenshot, ex. Beverage)
- each category can be expanded or shrunk
- child rows under category are 0 to n
- each rows should have checkbox
- if category level checkbox is checked, all child rows should be checked

It does not have to be exactly the same as above, but basically customer wants something like this. For the data structure, I can build anything as long as above UI is guaranteed (I guess it would be some kind of page list). Any suggested design approach?

Thanks,