Problem on Reading Large XML File

Hi,

I am trying to develop wpf application which will read a large and complex XML file from same computer. when i debugging my program it will show reading data from xml file but data row is not stored in List object and terminate the program show the error is "Object reference not set to an instance of an object "

here is my code:

        public static List<CustomerClass> LoadDisbursement()
         { 
            List<CustomerClass> ListCustomerRecords=new List<CustomerClass>();
            var custs = from c in XElement.Load(@"E:\DisbursementNo_30.xml").Elements("Table1") select c;
            foreach (var customer in custs)
            {
                CustomerClass lCustomer = new CustomerClass
                {
                    AgreementID = customer.Element("AgreementID").Value,
                    POAgreementID = customer.Element("POAgreementID").Value,
    .......

    ...........

                    IsSecondSystem = customer.Element("IsSecondSystem").Value,
                    NoOfWomanBeneficiary = customer.Element("NoOfWomanBeneficiary").Value
                };
                //ListCustomerRecords.Add(lCustomer);
                ListCustomerRecords.Add(lCustomer);
            }
            return ListCustomerRecords;
        } 

and Main code is:

     private void btnLoad_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                List<CustomerClass> CustomerList = new List<CustomerClass>();
                CustomerList = DAL_DisbursementNo_30.LoadDisbursement();
                listView1.DataContext = CustomerList;
            }
            catch (Exception ex)
            {
                lblMessage.Content = ex.Message;
            }
        }

And My xml file is:

<?xml version="1.0" standalone="yes"?>
<NewDataSet>
  <xs:schema id="NewDataSet" xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
    <xs:element name="NewDataSet" msdata:IsDataSet="true" msdata:UseCurrentLocale="true">
      <xs:complexType>
        <xs:choice minOccurs="0" maxOccurs="unbounded">
          <xs:element name="Table">
            <xs:complexType>
              <xs:sequence>
                <xs:element name="HouseHoldNo" type="xs:decimal" minOccurs="0" />
                <xs:element name="POHouseHoldNo" type="xs:decimal" minOccurs="0" />
...................
                <xs:element name="UnionID" type="xs:decimal" minOccurs="0" />
                <xs:element name="OccupationID" type="xs:decimal" minOccurs="0" />
              </xs:sequence>
            </xs:complexType>
          </xs:element>
          <xs:element name="Table1">
            <xs:complexType>
              <xs:sequence>
                <xs:element name="AgreementID" type="xs:decimal" minOccurs="0" />
                <xs:element name="POAgreementID" type="xs:decimal" minOccurs="0" />
......................
                <xs:element name="IsSecondSystem" type="xs:string" minOccurs="0" />
                <xs:element name="NoOfWomanBeneficiary" type="xs:int" minOccurs="0" />
              </xs:sequence>
            </xs:complexType>
          </xs:element>

  <Table>
    <HouseHoldNo>38630</HouseHoldNo>
    <POHouseHoldNo>1394</POHouseHoldNo>
      .........................
    <UnionID>1151</UnionID>
    <OccupationID>8</OccupationID>
  </Table>
  <Table>
    <HouseHoldNo>38631</HouseHoldNo>
    <POHouseHoldNo>1395</POHouseHoldNo>
    ......................
    <UnionID>1153</UnionID>
    <OccupationID>8</OccupationID>
  </Table>

  <Table1>
    <AgreementID>37847</AgreementID>
........................
    <NoOfWomanBeneficiary>3</NoOfWomanBeneficiary>
  </Table1>
  <Table1>
    <AgreementID>37848</AgreementID>
..........................
    <NoOfWomanBeneficiary>2</NoOfWomanBeneficiary>
  </Table1>

</NewDataSet>