Multilevel categories webapp search form ?

[priyankp2569697]

i have developed a site and i want multilevel categories based search form for webapp, is it possible into adobe BC?

It is simple webapp search form like in first select drop-down there will be parent categories and in second select drop-down child categories will listed.

results should be as per selection of catagory, i want once user will select parent category from the list and then child categories of that parent category selected by user will display into the second select drop-down. after this selection while user click on search button it will display the webapp item added into that specific child cateory on the page.

It's very urgent and important, please can anyone help?

I have attached a screen-shot what i want to do exactly.