c# - Sending dynamic form parameters to WebApi? -

i'm using webapi 1 ( visual studio: 2010 )

there rare scenarios client can send variable ( dynamic) number of parameters method. (via post verb)

i've been trying test sending variable number of arguments :

post http://.../api/claims http/1.1 host: ... accept: */* content-type: application/x-www-form-urlencoded; charset=utf-8 content-length: 13  a=1&b=2&c=4 

on server side :

[httppost] public dynamic newclaim1([frombody]  dynamic al) {     return request.createresponse(httpstatuscode.ok, (object)al); } 

but empty object on response. ( 200 ok)

attempt #2

i've tried ([frombody] object al)

attempt #3

i've tried (object[] al)

attempt #4

  public class //using class holder     {         public object[] obj { get; set; }     }        [httppost]     public dynamic newclaim1([frombody]  al)     {         return request.createresponse(httpstatuscode.ok, al);     } 

but without success

question:

how can send dynamic post parameters method retrieve values.

nb :

• i don't want create class holders each combination...
• i don't want send json. i'm talking pure post x-www-form-urlencoded
• i know webapi doesn't support nativly multiple [frombody] parameters

you can retrieve form values using formdatacollection.

public void postform(formdatacollection formdata) {     foreach (keyvaluepair<string, string> formentry in formdata)     {         string key = formentry.key;         string value = formentry.value;     } }