How to create dependent exposed filters in a view I have three drop-down boxes just like ex:

1. class list (ClassI, ClassII...)
2. subject list (Hindi, English...)
3. chapter list (H-ChapterI, H-ChapterII, E-ChapterI, E-ChapterII...)


When a user clicks on class list drop-down, there will be two option (ClassI, ClassII and so on...). When I select ClassI in a subject list (Hindi, English and so on...) will become as same. When I select on Hindi in chapter list related to Hindi (HChapterI, HChapterII) all chapter will come. This is what I want in my view filter.
I think you should use Simple Hierarchical Select, this also works with views and exposed filters out of the box.