How to display one lookup's values depends on another lookup's value?

Question

I want to display a set of values in one lookup's control depends on another lookup's control in same list. so what I want to do for this situation? both look ups are pointing the same list...

its like choosing states from country list... and is there any simple way?

Answer 1

You can use SPServices library if you are looking to do it on client side Javascript.

It has SPCascadeDropdowns function especially for this purpose.

http://spservices.codeplex.com/wikipage?title=%24().SPServices.SPCascadeDropdowns

Answer 2

What you are looking to do is to create a cascaded dropdown list.

Take a look at the folling link:
http://www.codeproject.com/Articles/619373/Cascading-drop-downs-with-Cross-site-Lookup-for-Sh

You will need to adapt it a little bit, but it should work fine.