I am using
<script src="../../Scripts/MicrosoftAjax.js"></script>
<script src="../../Scripts/MicrosoftMvcAjax.js"></script>
<script src="../../Scripts/jquery-1.8.3.js"></script>
but following library MicrosoftAjax and MicrosoftMvcAjax is obsolete and and size is also additional is there any alternative..
i heard about unobtrusive ajax but i don't know how to use it..
my form is like
using (Ajax.BeginForm("getConversionRate", new AjaxOptions { UpdateTargetId = "Result", OnSuccess = "onSuccess", OnBegin = "onBegin", OnComplete = "onComplete" }))