Refer the below code.
HTML
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css" />
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript" src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/js/bootstrap.min.js"></script>
<div class="panel panel-default" style="width: 500px; padding: 10px; margin: 10px">
<div id="Tabs" role="tabpanel">
<!-- Nav tabs -->
<ul class="nav nav-tabs" role="tablist">
<li><a href="#personal" aria-controls="personal" role="tab" data-toggle="tab">Personal
</a></li>
<li><a href="#employment" aria-controls="employment" role="tab" data-toggle="tab">Employment</a></li>
</ul>
<!-- Tab panes -->
<div class="tab-content" style="padding-top: 20px">
<div role="tabpanel" class="tab-pane active" id="personal">
This is Personal Information Tab
</div>
<div role="tabpanel" class="tab-pane" id="employment">
This is Employment Information Tab
</div>
</div>
</div>
<br />
<br />
<asp:Button ID="Button1" Text="Submit" runat="server" CssClass="btn btn-primary" />
<asp:HiddenField ID="TabName" runat="server" />
</div>
</ContentTemplate>
</asp:UpdatePanel>
<script type="text/javascript">
$(function () {
SetTabs();
});
var prm = Sys.WebForms.PageRequestManager.getInstance();
if (prm != null) {
prm.add_endRequest(function (sender, e) {
if (sender._postBackSettings.panelsToUpdate != null) {
SetTabs();
}
});
};
function SetTabs() {
var tabName = $("[id*=TabName]").val() != "" ? $("[id*=TabName]").val() : "personal";
$('#Tabs a[href="#' + tabName + '"]').tab('show');
$("#Tabs a").click(function () {
$("[id*=TabName]").val($(this).attr("href").replace("#", ""));
});
};
</script>
</div>
Screenshot
