XML how to deserialize C#

<?xml version=\"1.0\"?>\r\n<ArrayOfArrayOfString xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\">
  \r\n  <ArrayOfString>
    \r\n    <string>Group</string>\r\n    <string>Name</string>\r\n    <string>MONTH</string>\r\n    <string>AHT</string>\r\n    <string>EFFICIENCY</string>\r\n    <string>CREDIT</string>\r\n    <string>CRED_COUNT</string>\r\n    <string>MONITOR</string>\r\n    <string>SCOREADHERE</string>\r\n    <string>OVERALL</string>\r\n    <string>CALLDURIN</string>\r\n    <string>CALLDUROUT</string>\r\n    <string>WRAPIN</string>\r\n    <string>RATING</string>\r\n    <string>WRAPOUT</string>\r\n    <string>HOLDTIME</string>\r\n    <string>NUMOFMON</string>\r\n    <string>EXTN</string>\r\n
  </ArrayOfString>\r\n  <ArrayOfString>
    \r\n    <string>RATTLE         </string>\r\n    <string>JR</string>\r\n    <string>2012-10</string>\r\n    <string>484</string>\r\n    <string>96.34</string>\r\n    <string>3</string>\r\n    <string>1</string>\r\n    <string>
      73.8
      0
    </string>\r\n    <string>99.88</string>\r\n    <string>82.51</string>\r\n    <string>2435.68</string>\r\n    <string>330.90</string>\r\n    <string>84.42</string>\r\n    <string>60</string>\r\n    <string>6.33</string>\r\n    <string>823.62</string>\r\n    <string>5</string>\r\n    <string>7695</string>\r\n
  </ArrayOfString>\r\n  <ArrayOfString>
    \r\n    <string>RATTLE         </string>\r\n    <string>JR</string>\r\n    <string>2012-11</string>\r\n    <string>494</string>\r\n    <string>97.02</string>\r\n    <string>5</string>\r\n    <string>2</string>\r\n    <string>80.60</string>\r\n    <string>99.86</string>\r\n    <string>94.37</string>\r\n    <string>2072.72</string>\r\n    <string>332.35</string>\r\n    <string>45.23</string>\r\n    <string>100</string>\r\n    <string>3.55</string>\r\n    <string>773.57</string>\r\n    <string>5</string>\r\n    <string>7695</string>\r\n
  </ArrayOfString>\r\n  <ArrayOfString>
    \r\n    <string>Battle         </string>\r\n    <string>JR</string>\r\n    <string>
      2012-12</string>\r\n    <string>410</string>\r\n    <string>97.45</string>\r\n    <string>3.75</string>\r\n    <string>4</string>\r\n    <string>91.33</string>\r\n    <string>99.89</string>\r\n    <string>90.92</string>\r\n    <string>1570.67</string>\r\n    <string>308.60</string>\r\n    <string>44.05</string>\r\n    <string>75</string>\r\n    <string>5.20</string>\r\n    <string>500.55</string>\r\n    <string>3</string>\r\n    <string>7695</string>\r\n
    </ArrayOfString>\r\n  <ArrayOfString>
    \r\n    <string>Battle         </string>\r\n    <string>JR</string>\r\n    <string>2013-01</string>\r\n    <string>534</string>\r\n    <string>97.57</string>\r\n    <string>4</string>\r\n    <string>1</string>\r\n    <string>84.50</string>\r\n    <string>99.91</string>\r\n    <string>90.50</string>\r\n    <string>2241.95</string>\r\n    <string>297.75</string>\r\n    <string>115.38</string>\r\n    <string>80</string>\r\n    <string>8.50</string>\r\n    <string>860.93</string>\r\n    <string>8</string>\r\n    <string>7695</string>
    \r\n
  </ArrayOfString>\r\n  <ArrayOfString>
    \r\n    <string>Battle         </string>\r\n    <string>JR</string>\r\n    <string>2013-02</string>\r\n    <string>533</string>\r\n    <string>97.98</string>\r\n    <string>5</string>\r\n    <string>4</string>\r\n    <string>87.67</string>\r\n    <string>99.94</string>\r\n    <string>96.40</string>\r\n    <string>2630.45</string>\r\n    <string>387.97</string>\r\n    <string>251.62</string>\r\n    <string>100</string>\r\n    <string>30.12</string>\r\n    <string>955.63</string>\r\n    <string>3</string>\r\n    <string>7695</string>\r\n
  </ArrayOfString>\r\n  <ArrayOfString>
    \r\n    <string>Battle         </string>\r\n    <string>JR</string>\r\n    <string>2013-03</string>\r\n    <string>536</string>\r\n    <string>96.74</string>\r\n    <string>5</string>\r\n    <string>1</string>\r\n    <string>81.71</string>\r\n    <string>100</string>\r\n    <string>94.61</string>\r\n    <string>1684.88</string>\r\n    <string>349.05</string>\r\n    <string>169.62</string>\r\n
    <string>100</string>\r\n    <string>48.32</string>\r\n    <string>632.18</string>\r\n    <string>7</string>\r\n    <string>7695</string>\r\n
  </ArrayOfString>\r\n  <ArrayOfString>
    \r\n    <string>Battle         </string>\r\n    <string>MREID</string>\r\n    <string>2013-05</string>\r\n    <string>659</string>\r\n    <string>97.81</string>\r\n    <string>2.66</string>\r\n    <string>3</string>\r\n    <string>96.33</string>\r\n    <string>99.83</string>\r\n    <string>86.79</string>\r\n    <string>2801.35</string>\r\n    <string>409.02</string>\r\n    <string>301.35</string>\r\n    <string>53.20</string>\r\n    <string>42.53</string>\r\n    <string>931.05</string>\r\n    <string>6</string>\r\n    <string>7695</string>\r\n
  </ArrayOfString>\r\n  <ArrayOfString>
    \r\n    <string>Battle         </string>\r\n    <string>MREID</string>\r\n    <string>2013-06</string>\r\n    <string>655</string>\r\n    <string>98.85</string>\r\n    <string>4</string>\r\n    <string>4</string>\r\n    <string>95.50</string>\r\n    <string="">
      99.70</string>\r\n    <string>93.51</string>\r\n    <string>2599.90</string>\r\n    <string>496.63</string>\r\n    <string>382.73</string>\r\n    <string>80</string>\r\n    <string>46.87</string>\r\n    <string>916.33</string>\r\n    <string>4</string>\r\n    <string>7695</string>\r\n
    </ArrayOfString>\r\n  <ArrayOfString>    
      .
      .
      .
      .
    </ArrayOfArrayOfString>

int columnCount = table.Columns.Count;
                  int rowCount = table.Rows.Count;
                  List<string> captions = new List<string>();
                  for (int i = 0; i < columnCount; i++)
                  {
                      captions.Add(table.Columns[i].Caption); //first item will contain column headers
                  }
                  result.Add(captions);
                  for (int i = 0; i < rowCount; i++)
                  {
                      List<string> row = new List<string>();
                      for (int j = 0; j < columnCount; j++)
                      {
                          row.Add(table.Rows[i].ItemArray[j].ToString());
                      }
                      result.Add(row);
                  }
                  System.Xml.Serialization.XmlSerializer serializer = new System.Xml.Serialization.XmlSerializer(typeof(List<List<string>>));
                  using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
                  {
                      serializer.Serialize(ms, result);
                      ms.Position = 0;
                      string data = new System.IO.StreamReader(ms).ReadToEnd();
                      return data;
                  }
              }
              catch
              {
                  return "";
              }

public void webService_GetSqlResultTableCompleted(object sender, WCFSvc1.GetSqlResultTableCompletedEventArgs e)
        {
            Int32 datGridIndex = dgMaster.SelectedIndex;
            
            
           // string xmlResult = e.Result;
            if (xmlResult == "")
            {
                MessageBox.Show("Error occured while executing SQL");
                return;
            }

            try
            {      // thos code does not work
                XmlSerializer serializer = new XmlSerializer(typeof(DBstream));
                StringReader reader = new StringReader(e.Result);
                DBstream result = (DBstream)serializer.Deserialize(reader);

.
.
}

[System.Xml.Serialization.XmlRootAttribute(Namespace = "", IsNullable = false)]
        public class DBstream
        {

            /// <remarks/>
            public DBdefinitions DBdefinitions;
        }

        public class DBdefinitions
        {
            
            public string dbGrp { get; set; }

           
            public string dbName { get; set; }
            
            public DateTime dbMonth { get; set; }
           
            public int dbAHT { get; set; }
           
            public decimal dbEffeciency { get; set; }
          
            public decimal dbCredit { get; set; }
            
            public int dbCreditCount { get; set; }

            public decimal dbMonitor { get; set; }

            public decimal dbScoreAdhere { get; set; }

            public decimal dbOverAll { get; set; }

            public decimal dbCallDur { get; set; }

            public decimal dbCallDurOut { get; set; }

            public decimal dbWrapIn { get; set; }

            public decimal dbRating { get; set; }

            public decimal dbWrapOut { get; set; }

            public decimal dbHoldTime { get; set; }

            public int dbNumOfMons { get; set; }

            public int dbExtn { get; set; }
           
        }