Request.getParameter(

Question

I have two combo boxes. whenever a user selects some value in first combo box then using ajax code i am getting the contents of other combo box. The first combobox is department list combo box and second one is employee list combo box. The contents of employee combobox (2nd combobox) can be populated in two different cases :-
1) Whenever user selects a department, using ajax i get the list of the employees of that department and display it in second combo box using javascript.
2) Whenever the user submits the form, the action is given to same page. So now when the same page is loaded i have the department and employee numbers which were selected in previous page. So using jsp code i retrieve the employee list from the database for the selected department and populate the combobox. and i make the employee who was selected in the previous page as selected in this page also.
Now My Problem is
When user selects a department then through ajax, code of employee combobox will be sent to server. When user selects a employee
from this combobox and submits the form then parameter value of department is not null but the parameter value of employee number is null. So in the submitted page i know the department he selected but i will not know what is employee he selected because request.getParmeter("employeeNumber") is returning null as stated above. Remember all the problem of employee combobox returning null as explained is occuring for the combobox which was generated by ajax code.
So what i am doing is that in the submitted page as i know the department id he selected, i am just getting the list of all employees
of that department using jsp code and displayed them on users combo box with no employee selected. So here the combobox is being generated by jsp code. Now here if i select the employee from the employee combobox which was generated by jsp code, and submit the form, Its working perfectly fine.
So the employee combobox which was generated by jsp code is working but the one which was generated by ajax code is not working.
and All this problems are only in firefox. In interenet explorer everything is fine in both cases.
I checked the codes generated by both methods. But they are exaclty same. What could be the problem??

Answer 1

I have two combo boxes. whenever a user selects some value in first combo box then using ajax code i am getting the contents of other combo box. The first combobox is department list combo box and second one is employee list combo box. The contents of employee combobox (2nd combobox) can be populated in two different cases :-
1) Whenever user selects a department, using ajax i get the list of the employees of that department and display it in second combo box using javascript.
2) Whenever the user submits the form, the action is given to same page. So now when the same page is loaded i have the department and employee numbers which were selected in previous page. So using jsp code i retrieve the employee list from the database for the selected department and populate the combobox. and i make the employee who was selected in the previous page as selected in this page also.
Now My Problem is
When user selects a department then through ajax, code of employee combobox will be sent to server. When user selects a employee
from this combobox and submits the form then parameter value of department is not null but the parameter value of employee number is null. So in the submitted page i know the department he selected but i will not know what is employee he selected because request.getParmeter("employeeNumber") is returning null as stated above. Remember all the problem of employee combobox returning null as explained is occuring for the combobox which was generated by ajax code.
So what i am doing is that in the submitted page as i know the department id he selected, i am just getting the list of all employees
of that department using jsp code and displayed them on users combo box with no employee selected. So here the combobox is being generated by jsp code. Now here if i select the employee from the employee combobox which was generated by jsp code, and submit the form, Its working perfectly fine.
So the employee combobox which was generated by jsp code is working but the one which was generated by ajax code is not working.
and All this problems are only in firefox. In interenet explorer everything is fine in both cases.
I checked the codes generated by both methods. But they are exaclty same. What could be the problem??