Newtonsoft.Json.JsonTextWriter.WriteEnd C# (CSharp) Method

        protected override void WriteEnd(JsonToken token)
        {
            switch (token)
            {
                case JsonToken.EndObject:
                    _writer.Write('}');
                    break;
                case JsonToken.EndArray:
                    _writer.Write(']');
                    break;
                case JsonToken.EndConstructor:
                    _writer.Write(')');
                    break;
                default:
                    throw JsonWriterException.Create(this, "Invalid JsonToken: " + token, null);
            }
        }

 public void ProcessRequest(HttpContext context)
 {
     string reVal = string.Empty;
     context.Response.ContentType = "text/plain";
     IEnumerable<ADM_USER> list = from m in etMgr.ADM_USER.OfType<ADM_USER>()
                                  select m;
     StringBuilder sb = new StringBuilder();
     StringWriter sw = new StringWriter(sb);
     using (JsonWriter jsonWriter = new JsonTextWriter(sw))
     {
         jsonWriter.Formatting = Formatting.Indented;
         jsonWriter.WriteStartArray();
         foreach (ADM_USER m in list)
         {
             jsonWriter.WriteStartObject();
             jsonWriter.WritePropertyName("name");
             jsonWriter.WriteValue(string.IsNullOrEmpty(m.REAL_NAME) ? m.USERNAME : m.REAL_NAME);
             jsonWriter.WritePropertyName("id");
             jsonWriter.WriteValue(m.USER_ID);
             jsonWriter.WriteEndObject();
         }
         jsonWriter.WriteEnd();
     }
     reVal = sb.ToString();
     context.Response.Write(reVal);
 }