Access Data from nested datalist

Question

Hi,

  I am trying to access value from nested datalist .but m not getting value of inner data list .Please help me .

Example  1-Datalist is outer side

                  2-Datalist is inside of outer datalist

   In inner datalist is a textbox and when we click on outer datalist edit event ,value of inner datalist should be fetched. But i am not able to fetch data.