c# - How to send multiple parameters to a Web API call using WebClient -

i want send via post request 2 parameters web api service. receiving 404 not found when try in following way, msdn:

public static void poststring (string address) {     string data = "param1 = 5 param2 = " + json;     string method = "post";     webclient client = new webclient ();     string reply = client.uploadstring (address, method, data);      console.writeline (reply); } 

where json json representation of object. did not worked, have tried query parameters in this post same 404 not found returned.

can provide me example of webclient sends 2 parameters post request?

note: trying avoid wrapping both parameters in same class send service (as found suggestion here)

i suggest sending parameters namevaluecollection.

your code when sending parameters namevaluecollection:

using(webclient client = new webclient())         {             namevaluecollection requestparameters = new namevaluecollection();             requestparameters.add("param1", "5");             requestparameters.add("param2", json);             byte[] response = client.uploadvalues("your url here", requestparameters);             string responsebody = encoding.utf8.getstring(response);         } 

using uploadvalues make easier you, since framework construct body of request , won't have worry concatenating parameters or escaping characters.