Posting json array with strings to Asp.Net MVC action controller is always null
asp.net-mvc, binding, json, model
Solution
I'd suggest two things
1) Replace
data: JSON.stringify({ "keys": [ "1", "2" ] }),
by
data: JSON.stringify([ "1", "2" ] ), // <-- Send the array directly
doing this you'll be passing an array as parameter instead of an object containing an array propery named `keys`
2) If previous suggestion alone doesn't work, replace
ActivateKeys(List<string> keys)
by
ActivateKeys(IList<string> keys) // <-- Use interface IList<T>
as not 100% sure if mvc engine would be able to resolve to `List<string>`
Problem
I cannot get Asp.Net MVC to bind a list of strings sent as an json object unless I wrap them in a class. I have a hard time believing that it is a must to wrap the list like that. Been looking at various examples and what not for a few hours, but cannot get any other solution to work. What am I missing? Working and non-working code below. ``` $.ajax({ type: "POST", traditional: true, url: "keyapi/activate.json", data: JSON.stringify({ "keys": [ "1", "2" ] }), contentType: "application/json; charset=utf-8", success: function (data) { alert(data); } }); ``` When using an action controller such as the one below "keys" will be null. ``` [HttpPost] public Response<List<string>> ActivateKeys(List<string> keys) { return KeyService.ActivateKeys(test.Keys); } ``` If I add a class to wrap the list it works. Am I forced to do so, or am I missing something here? The code below works, using the same jquery post code. ``` [HttpPost] public Response<List<string>> ActivateKeys(Test test) { return KeyService.ActivateKeys(test.Keys); } public class Test { List<string> Keys { get; set; } } ```