load data table to array

Question

I have a sql table .I want load my table content into a data table dt .Add my data table content into an array and my array(tablearray) into a dictionary (lst).At last i return my dictionary .Here my code .I don't know How to add my array into dictionary? please help me to solve this problem.

[System.Web.Services.WebMethod]
public static  Dictionary< string, object> Load()
  {
          string sql = "SELECT Name,Marks FROM table4";
  using (SqlConnection Connection = newSqlConnection((@"myconnstrng")))
          {
 using (SqlCommand myCommand = new SqlCommand(sql,Connection))
              {
                  Connection.Open();
         using (SqlDataReader myReader = myCommand.ExecuteReader())
                  {
                      DataTable dt = new DataTable();
                      dt.Load(myReader);
                      Connection.Close();
                      var tableEnumerable = dt.AsEnumerable();
                      var tableArray = tableEnumerable.ToArray();
        Dictionary<string, object> lst = new Dictionary<string, object>();

                    return lst;
                     }
                }
             }
  }