asp.net - comparing the old values vs new value and update -

note: havent implement above solution closing question , accepting answer thou havent implement.

what best way of doing? , know can store repeater in different var , compare wanted know elegant way of doing.

here for loop code want compare , update values have changed , ignore values have not changed

gridviewrow row = gv.selectedrow;             repeater _rpt = gv.rows[e.rowindex].cells[8].findcontrol("rptreg") repeater;  repeater _rpt1 = gv.rows[e.rowindex].cells[9].findcontrol("rptvisitor") repeater;       (int = 0; < _rpt.items.count; i++)   {                 textbox _txt = _rpt.items[i].findcontrol("txtid") textbox;                 textbox _txt1 = _rpt.items[i].findcontrol("txtname") textbox;               if (_rpt1.items.count > i)                     textbox _txt3 = _rpt1.items[i].findcontrol("txtvisitor") textbox;                 //update db          }      } 

it's total hack , i'm sure there more elegant way handle throw hidden field in there , set form elements onchange script update value of hidden field. check value of hidden field.

hopefully has better way if else fails.

if add class hidden field of "hiddenindicator" , form elements of "causeschanged" following jquery should want:

$(document).ready(function() {     $('input.causeschanged').change(function() {         $(this)             .closest('tr') // parent row             .find("input.hiddenindicator") // find children match selector             .val('1'); //the value indicates change occured     }); }) 

i haven't tested code used similar in project once.