<script type="text/javascript">
var flag = true;
window.onbeforeunload = beforeUnloading;
var prm = Sys.WebForms.PageRequestManager.getInstance();
prm.add_pageLoaded(initPagers);
function initPagers() {
$(".gridViewPagerStyle").click(function() { flag = false; });
}
function beforeUnloading(){
if(flag)
return "unloading";
flag = true;
}
</script>
:
:
<asp:GridView ... PagerStyle-CssClass="gridViewPagerStyle" ... />
:
: