title: To return the list in JSON format
body: <p>Below is my code,</p>
  
  <pre><code>List&lt;string&gt; modified_listofstrings = new List&lt;string&gt;();
  string sJSON = "";
  System.Web.Script.Serialization.JavaScriptSerializer jSearializer =
                   new System.Web.Script.Serialization.JavaScriptSerializer();
  resulted_value = final_resulted_series_name + ":" + period_name + ":" + period_final_value;
  modified_listofstrings.Add(resulted_value);
  json_resultedvalue = JsonConvert.SerializeObject(resulted_value);
  modified_listofstrings.Add(json_resultedvalue);
  sJSON = jSearializer.Serialize(modified_listofstrings);
  return sJSON;
  </code></pre>
  
  <p>But on following line ,</p>
  
  <pre><code>sJSON = jSearializer.Serialize(modified_listofstrings);
  </code></pre>
  
  <p>I am getting an error as Cannot implicitly convert type string to system.collection.generic.list</p>