how we implement AUTO_COMPLETE TEXT box in GRIDVIEW_ITEM_TEMPLATES ?

Hi,

QUESTION ::   how we implement AUTO_COMPLETE TEXT box in GRIDVIEW_ITEM_TEMPLATES ??????????

QUESTION ::    is it possible to  using   autocomplete in gridivew item templates ??

NOTES ::

   1) Autocomplete implemented in gridview ITEM TEMPLATE

   2)... in Gridview only have item template ..

  3)....... in all item template have textbox  [ open ]

 4) .............. in FIRST COLUMN implemented with AUTO_COMPLETE   

 Facing problem : 

       1) in  gridview first row ,, using the autocomplete ,,, we selecte the text from autocomplete , the result[selected item] in second row

      2) if it second row , the result  [selected item] show in third row

      3 . if the griview have 5 rows then ,,,, we type in first row [auto complete] .. but result  [selected item]in show  in last row

thnaks n advance