using System;

using System.IO;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows;

using System.Xml.Linq;

using System.Xml;

​

public class Program

{

    public static void Main()

    {

        string xml = @"<?xml version=""1.0"" encoding=""UTF-8""?>

<n1:Form109495CTransmittalUpstream xmlns=""urn:us:gov:treasury:irs:ext:aca:air:6.2"" xmlns:irs=""urn:us:gov:treasury:irs:common""

xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance"" xmlns:n1=""urn:us:gov:treasury:irs:msg:form1094-1095Ctransmitterupstreammessage""

xsi:schemaLocation=""urn:us:gov:treasury:irs:msg:form1094-1095Ctransmitterupstreammessage IRS-Form1094-1095CTransmitterUpstreamMessage.xsd"">

            <Form1094CUpstreamDetail>

                <SubmissionID>1</SubmissionID>

                <EmployerInformationGrp>

                    <irs:EmployerEIN>1</irs:EmployerEIN>

                </EmployerInformationGrp>

                <Form1095CUpstreamDetail>

                    <RecordID>1</RecordID>

                    <irs:SSN>012345678</irs:SSN>

                    <irs:TaxYr>2014</irs:TaxYr>

                    <ALEMemberInformationGrp>

                          <JanALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>1000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>1000</TotalEmployeeCnt>

                          </JanALEMonthlyInfoGrp>

                          <FebALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>1000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>1000</TotalEmployeeCnt>

                          </FebALEMonthlyInfoGrp>

                          <MarALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>1000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>1000</TotalEmployeeCnt>

                          </MarALEMonthlyInfoGrp>

                          <AprALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>1000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>1000</TotalEmployeeCnt>

                          </AprALEMonthlyInfoGrp>

                          <MayALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>1000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>1000</TotalEmployeeCnt>

                          </MayALEMonthlyInfoGrp>

                          <JunALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>1000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>1000</TotalEmployeeCnt>

                          </JunALEMonthlyInfoGrp>

                          <JulALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>1000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>1000</TotalEmployeeCnt>

                          </JulALEMonthlyInfoGrp>

                          <AugALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>1000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>1000</TotalEmployeeCnt>

                          </AugALEMonthlyInfoGrp>

                          <SepALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>1000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>1000</TotalEmployeeCnt>

                          </SepALEMonthlyInfoGrp>

                          <OctALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>1000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>1000</TotalEmployeeCnt>

                          </OctALEMonthlyInfoGrp>

                          <NovALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>1000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>1000</TotalEmployeeCnt>

                          </NovALEMonthlyInfoGrp>

                          <DecALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>1000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>1000</TotalEmployeeCnt>

                          </DecALEMonthlyInfoGrp>

                         </ALEMemberInformationGrp>

                </Form1095CUpstreamDetail>

                <Form1095CUpstreamDetail>

                    <RecordID>2</RecordID>

                    <irs:SSN>022345678</irs:SSN>

                    <irs:TaxYr>2014</irs:TaxYr>

                    <ALEMemberInformationGrp>

                          <JanALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>2000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>2000</TotalEmployeeCnt>

                          </JanALEMonthlyInfoGrp>

                          <FebALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>2000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>2000</TotalEmployeeCnt>

                          </FebALEMonthlyInfoGrp>

                          <MarALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>2000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>2000</TotalEmployeeCnt>

                          </MarALEMonthlyInfoGrp>

                          <AprALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>2000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>2000</TotalEmployeeCnt>

                          </AprALEMonthlyInfoGrp>

                          <MayALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>2000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>2000</TotalEmployeeCnt>

                          </MayALEMonthlyInfoGrp>

                          <JunALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>2000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>2000</TotalEmployeeCnt>

                          </JunALEMonthlyInfoGrp>

                          <JulALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>2000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>2000</TotalEmployeeCnt>

                          </JulALEMonthlyInfoGrp>

                          <AugALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>2000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>2000</TotalEmployeeCnt>

                          </AugALEMonthlyInfoGrp>

                          <SepALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>2000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>2000</TotalEmployeeCnt>

                          </SepALEMonthlyInfoGrp>

                          <OctALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>2000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>2000</TotalEmployeeCnt>

                          </OctALEMonthlyInfoGrp>

                          <NovALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>2000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>2000</TotalEmployeeCnt>

                          </NovALEMonthlyInfoGrp>

                          <DecALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>2000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>2000</TotalEmployeeCnt>

                          </DecALEMonthlyInfoGrp>

                         </ALEMemberInformationGrp>

                </Form1095CUpstreamDetail>  

            </Form1094CUpstreamDetail>

            <Form1094CUpstreamDetail>

                <SubmissionID>1</SubmissionID>

                <EmployerInformationGrp>

                    <irs:EmployerEIN>2</irs:EmployerEIN>

                </EmployerInformationGrp>

                <Form1095CUpstreamDetail>

                    <RecordID>1</RecordID>

                    <irs:SSN>012345678</irs:SSN>

                    <irs:TaxYr>2014</irs:TaxYr>

                    <ALEMemberInformationGrp>

                          <JanALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>3000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>3000</TotalEmployeeCnt>

                          </JanALEMonthlyInfoGrp>

                          <FebALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>3000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>3000</TotalEmployeeCnt>

                          </FebALEMonthlyInfoGrp>

                          <MarALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>3000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>3000</TotalEmployeeCnt>

                          </MarALEMonthlyInfoGrp>

                          <AprALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>3000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>3000</TotalEmployeeCnt>

                          </AprALEMonthlyInfoGrp>

                          <MayALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>3000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>3000</TotalEmployeeCnt>

                          </MayALEMonthlyInfoGrp>

                          <JunALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>3000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>3000</TotalEmployeeCnt>

                          </JunALEMonthlyInfoGrp>

                          <JulALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>3000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>3000</TotalEmployeeCnt>

                          </JulALEMonthlyInfoGrp>

                          <AugALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>3000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>3000</TotalEmployeeCnt>

                          </AugALEMonthlyInfoGrp>

                          <SepALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>3000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>3000</TotalEmployeeCnt>

                          </SepALEMonthlyInfoGrp>

                          <OctALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>3000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>3000</TotalEmployeeCnt>

                          </OctALEMonthlyInfoGrp>

                          <NovALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>3000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>3000</TotalEmployeeCnt>

                          </NovALEMonthlyInfoGrp>

                          <DecALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>3000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>3000</TotalEmployeeCnt>

                          </DecALEMonthlyInfoGrp>

                         </ALEMemberInformationGrp>

                </Form1095CUpstreamDetail>

                <Form1095CUpstreamDetail>

                    <RecordID>2</RecordID>

                    <irs:SSN>022345678</irs:SSN>

                    <irs:TaxYr>2014</irs:TaxYr>

                    <ALEMemberInformationGrp>

                          <JanALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>4000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>4000</TotalEmployeeCnt>

                          </JanALEMonthlyInfoGrp>

                          <FebALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>4000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>4000</TotalEmployeeCnt>

                          </FebALEMonthlyInfoGrp>

                          <MarALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>4000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>4000</TotalEmployeeCnt>

                          </MarALEMonthlyInfoGrp>

                          <AprALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>4000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>4000</TotalEmployeeCnt>

                          </AprALEMonthlyInfoGrp>

                          <MayALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>4000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>4000</TotalEmployeeCnt>

                          </MayALEMonthlyInfoGrp>

                          <JunALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>4000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>4000</TotalEmployeeCnt>

                          </JunALEMonthlyInfoGrp>

                          <JulALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>4000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>4000</TotalEmployeeCnt>

                          </JulALEMonthlyInfoGrp>

                          <AugALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>4000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>4000</TotalEmployeeCnt>

                          </AugALEMonthlyInfoGrp>

                          <SepALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>4000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>4000</TotalEmployeeCnt>

                          </SepALEMonthlyInfoGrp>

                          <OctALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>4000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>4000</TotalEmployeeCnt>

                          </OctALEMonthlyInfoGrp>

                          <NovALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>4000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>4000</TotalEmployeeCnt>

                          </NovALEMonthlyInfoGrp>

                          <DecALEMonthlyInfoGrp>

                           <ALEMemberFTECnt>4000</ALEMemberFTECnt>

                           <TotalEmployeeCnt>4000</TotalEmployeeCnt>

                          </DecALEMonthlyInfoGrp>

                         </ALEMemberInformationGrp>

                </Form1095CUpstreamDetail>  

            </Form1094CUpstreamDetail>          

        </n1:Form109495CTransmittalUpstream>";

​

        XNamespace xlns = "urn:us:gov:treasury:irs:ext:aca:air:6.2";

        XNamespace n1 = "urn:us:gov:treasury:irs:msg:form1094-1095Ctransmitterupstreammessage";

        XNamespace irs = "urn:us:gov:treasury:irs:common";

        XDocument xdoc = XDocument.Parse(xml);

        //Console.WriteLine(xdoc);

        var months = xdoc.Descendants(xlns + "ALEMemberFTECnt");

        foreach(var month in months)

        {

            //Console.WriteLine(month.Value);

            month.Value = "Something new";

        }

        foreach(var month in months)

        {

            //Console.WriteLine(month.Value);

​

        }

        Console.WriteLine(xdoc);

​

    }

}