Jquery.ajax send parameter called .Net Mvc method returns a sub-sub-page embed the current page

Original link: http://www.cnblogs.com/andrewhappy/p/5437280.html

• Front page:

　　　　< Div ID = "placeholder">

　　　　</div>

.ajax $ ({
            URL: ' @ Url.Action ( " sub-method ")'     // Call sub-method (Child Action)
            type: ' the POST ',
            Data: ({Parameter name: value})   　　 // Note parenthesis         
            dataType: 'html',　　　　　　  // returns html format
            Success: function (Result) {$ ( ' # placeholder' ) .html (Result);}

•  Backend Control:

 　　 [HttpPost]
        public ActionResult sub-method ( String parameter name)
        {...}

• Backend Child View:

　　   < P > Why Why < / P >

Reproduced in: https: //www.cnblogs.com/andrewhappy/p/5437280.html