Change index of dropdownlist inside gridview

For that, you need to find the grid control and the within grid try to find dropdownlist control.
But I would suggest the best way is to use jquery, it will make your life simpler

$('#gridid tr td').find('select').each(function(i,v){
 var ddlvalue =  $(v).val();
});

The above code says, find the grid and get all td within grid then find 'select' element within td
then you will get an array of select & do whatever functionality you want to add.

Hi Pradeep,

This document.getElementById('ddl1').value works for dropdownlist.

But it doesn't work for my dropdownlist, which is INSIDE the gridview's rows.