getting string like when I return a list

Question

The result I am getting

falsef005fdc9-7781-4c75-9f54-0a05a7fc6e71bc3d0990-2f44-491f-a25a-3771772d6a61false2017-10-10T08:43:16.0831010019false

I am getting like the format as below when I use the postman.

1. Question: How do I remove [] ? I tried to remove ToList() but it didn't work.
2. Question: Why I am getting a string like result instead of json?

controller method

public IEnumerable<ClientModel> GetClients()
{
    var clients = ClientHelper.GetAllClients();
    var result = (from c in clients
                  select c).ToList(); 

    return Mapper.Map<IEnumerable<ClientModel>>(result);

}

Answer 1

Use this namespace

using System.Web.Script.Serialization;

and

var json_result = new JavaScriptSerializer().Serialize(result );

You must get json data in json_result