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I am sorry if this has been asked already, but I have been looking for sometime but all I have found are rather old posts (mvc1, mvc2). I have a form which I would like to submit via Ajax. This looks like it would work but does not cover server side validation. 1) I am unsure if I should use the AjaxHelper.BeginForm or use raw jquery calls ($.ajax) ? What is the recommended approach here? 2) How do I handle client and server side validation? I am hoping the mvc framework provides a built in mechanism for dealing with this? There are some validations which I am only doing server side. Would using a ValidationSummary still work here? I am using asp.net mvc3/razor with unobtrussive javascript validation. Thank you! Edit: (as requested by Bobby B below). This was added months after asking the question as a user wanted to know how to use AjaxHelper This is the javascript code I used: <script type="text/javascript"> function ajaxValidate() { return $('form').validate().form(); } function getGbPostSuccess(ajaxContext){ // .... it is not necessary to do anything here. } function showFaliure(ajaxContext){ // handle failure } HTML snippet: @using (Ajax.BeginForm("Index", "Home", new AjaxOptions { UpdateTargetId = "form1", InsertionMode = InsertionMode.Replace, OnBegin = "ajaxValidate", OnSuccess = "getGbPostSuccess", OnFailure = "showFaliure" })) {

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