MVC5异步提交表单疑难杂症

//此处必须添加，不然不能执行异步回调OnAddPortSuccess方法

 <script src="~/scripts/jquery.unobtrusive-ajax.min.js"></script>

<script type="text/javascript">
function OnAddPortSuccess(data) {
var excuteResult = $.parseJSON(data);
alert(excuteResult.toString());
}
</script>

<h2>UserPorts</h2>
@using (Ajax.BeginForm("AddPort", new AjaxOptions()
{
OnSuccess = "OnAddPortSuccess"
}))

{.....}

//由于MVC5 新建项目里不包含jquery.unobtrusive-ajax.js

 //

异步上传文件，需要引入<script src="~/scripts/jquery.form.js"></script>