@if (TempData["success"] != null)
{
    <script src="/lib/jquery/dist/jquery.min.js"></script>

    <script src="//cdnjs.cloudflare.com/ajax/libs/toastr.js/latest/js/toastr.min.js"></script>

    <script type="text/javascript">

        toastr.success('@TempData["success"]')

    </script>

}
@if (TempData["error"] != null)
{
    <script src="/lib/jquery/dist/jquery.min.js"></script>

    <script src="//cdnjs.cloudflare.com/ajax/libs/toastr.js/latest/js/toastr.min.js"></script>

    <script type="text/javascript">

        toastr.info('@TempData["Error"]')

    </script>

}