How to parse json in .net?

Question

JSON

Forced to use DataContractJsonSerializer
such json class
{"ErrorMessage":""}

[DataContract]
    public class ResultScanResponse
    {
        [DataMember(Name = "ErrorMessage")]
        public string ErrorMessage { get; set; }
    }

the code

public static T Deserialize<T>(string aJSON) where T : new()
        {
            T deserializedObj = new T();
            MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(aJSON));
            DataContractJsonSerializer ser = new DataContractJsonSerializer(aJSON.GetType());
            deserializedObj = (T)ser.ReadObject(ms);
            ms.Close();
            return deserializedObj;
        }

when deserializing it says
"There was an error deserializing the object of type System.String. End element 'root' from namespace '' expected. Found element 'ErrorMessage' from namespace ''."

What's wrong with him?

Answer 1

public static T Deserialize<T>(string aJSON) where T : new()
{
       var ms = new MemoryStream(Encoding.UTF8.GetBytes(aJSON));
       var ser = new DataContractJsonSerializer(typeof(T));
       var deserializedObj = (T)ser.ReadObject(ms);
       ms.Close();
       return deserializedObj;
}