XML : While converting XML data to C# object, few memebers are not populated with values

I have to write a C# class to convert the below XML with name simplexml

   <Sample_Class3 xmlns="http://AvidUtility.Services" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">     <USER_ID_MODIFIED>       <ACTIVE_IND>Y</ACTIVE_IND>       <CUSTOMER_ID>59</CUSTOMER_ID>       <DATE_CREATED>2000-08-13T11:58:59</DATE_CREATED>       <EMAIL>email@email.com</EMAIL>       <FIRST_NAME>SYSTEM</FIRST_NAME>       <JOB_TITLE/>       <LAST_NAME>ADMINISTRATOR</LAST_NAME>       <MIDDLE_INITIAL/>       <PASSWORD>p2wd1234</PASSWORD>       <PHONE_COUNTRY_CODE/>       <PHONE_EXTENSION/>       <PHONE_NUMBER>0</PHONE_NUMBER>       <USER_ID>137</USER_ID>       <USER_NAME>ADMINISTRATOR</USER_NAME>       <USER_NAME_CREATED>system!administrator</USER_NAME_CREATED>     </USER_ID_MODIFIED>     <DATE_CLEARED>2001-08-13T11:58:59</DATE_CLEARED>  </Sample_Class3>    

I am using the below method to execute the XML mapping to C# object.

     public void ConvertBillAccountHistoryXMLtoObject3()       {          DataContractSerializer dcs = new DataContractSerializer(typeof(Sample_Class3));          string xmlpath = @"C:\Users\simplexml.xml";          FileStream fs = new FileStream(xmlpath, FileMode.Open);          XmlDictionaryReader reader = XmlDictionaryReader.CreateTextReader(fs, new XmlDictionaryReaderQuotas());          CommonAvidUtilityUrjanet.Sample_Class3 bah = (Sample_Class3)dcs.ReadObject(reader);          reader.Close();          fs.Close();       }    

After running the code, I am not able to see the value for member DATE_CLEARED in Sample_Class3 object even though XML is having the value. However, if I keep xml tag at first place i.e. before XML tag, I am able to see the value populated for the same data member of object. Can some one please research and help me to understand as why DATE_CLEARED xml tag's value is not mapped to c# object if it is kept after XML tag?