jquery - Post to controller and get result event checked -

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i try result :

function getprice() {         var url = '@url.action("getadditionalprice")';         $.post(url, { additionalsid: $("input[name=selectedadditionals]").val }),         function(data) {             $("#totalamount").val(data);         }; //view     }  public actionresult getadditionalprice(string[] additionalsid)     {         decimal price = 0;         foreach (var id in additionalsid)         {             var aid = int.parse(id);             price += db.contractadditionals.where(ca => ca.contractadditionalid == aid).select(ca => ca.price).single();         }          return json(price, jsonrequestbehavior.allowget);     }//controller

why string[] additionalsid parameters undefined? how post parameter controller , set result #totalamount?

try this

function getprice() {     var url = '@url.action("getadditionalprice")';     $.post(url, { additionalsid: $("input[name=selectedadditionals]").val() }),     function(data) {         $("#totalamount").val(data.result);     }; //view }  public actionresult getadditionalprice(string[] additionalsid) {     decimal price = 0;     foreach (var id in additionalsid)     {         var aid = int.parse(id);         price += db.contractadditionals.where(ca => ca.contractadditionalid == aid).select(ca => ca.price).single();     }      return json(new {result=price}, jsonrequestbehavior.allowget); }//controller

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