Question: how to get checkbox checked value inside gridview using javascript?
Answer: <script type="text/javascript">
function GetSelected() {
//Reference the GridView.
var grid = document. getElementById("<%=GridView1. ClientID%>");
//Reference the CheckBoxes in GridView.
var checkBoxes = grid. getElementsByTagName("INPUT");
var message = "Id Name Country\n";
//Loop through the CheckBoxes.