Update gridview after submit page

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C#

Hello friends,

in my search page i am giving one link in grid view for edit details on click on edit link member detail page open into fancy box.

what i need i want to refresh grid view after update on editmember page and edited record should be display into grid insted of old record.
1-search record
2-edit a row after search
3-then display the updaing record.

i tried so many ways which i got from internet different-2 forums for updating parent after client.i also apply javasctipt code but not get solution.

<script type="text/jscript">

window.onunload = refreshParent;
function refreshParent() {
var loc = window.opener.location;
window.opener.location = loc;
}
</script>

i trying to finish this from one week but unable to do i am looking for help.

thanks