Can you find out this below URLs these will help you as your requirement.
Your requirement is for Dependent List of Values. Please go through Oracle Insider official link from below for the
Thanks for giving answer but my requirement is as follows
I am using Jdeveloper 220.127.116.11.0 version
I have two forms (Form A and Form B) in one fragment.
In Form A i have one Company Attribute and i have created LOV for Company Attribute.
And in Form B i have Departments particulars as line form.
If I select one field in LOV(Form A) then it must display the Departments (Form B) present under that selected Company.
So, could you help me to resolve this.