Hierarchical data display

Question

I have a table emp-mst and i need some help as in my intranet project i make a stored procedure like if i pass any employee id then it shows the name and id of the persons that working under the login person now i want to show this data(result of sp) in hierarchical form in a asp.net page.

my sp name is usp_reportingperson.
means if i am login then it shows the employee under working me  if no employee is working under then there will be no plus sign to expand if working then + sign must show to expand and the employee working under me also having employees then also a plus sign with their name




please help its urgent
please provide the code.