remotly convert xml to json in asp.net mvc

public JsonResult ReturnJsonValues()
        {
            // Creted XML object
            var xml =
      @"<Columns>
          <Column Name=""key1"" DataType=""Boolean"">True</Column>
          <Column Name=""key2"" DataType=""String"">Hello World</Column>
          <Column Name=""key3"" DataType=""Integer"">999</Column>
        </Columns>";

            // conver xml to Jcon
            var dic = XDocument
                .Parse(xml)
                .Descendants("Column")
                .ToDictionary(
                    c => c.Attribute("Name").Value,
                    c => c.Value
                );
            var json = new JavaScriptSerializer().Serialize(dic);

            // Return the Json object using asp.net MVC

            return Json(json, JsonRequestBehavior.AllowGet);
        }