Writing XML based on dynamically generated data

Question

I will be writing an XML file via C# where the data for the elements is dynamic. So typically, I'll have this structure (simplified for the question):

<?xml version="1.0" encoding="utf-8"?>
<Output xmlns="http://xxxx/xxx.xsd">
  <AccountHolder>
    <Name></Name>
    <Address1></Address1>
    <City></City>
    <State></State>
    <ZipCode></ZipCode>
  </AccountHolder>
  <Visits>
    <VisitDate></VisitDate>
    <Copay></Copay>
    <CoInsurance></CoInsurance>    
  </Visits>
  <PatientDetails>
    <AcctNo></AcctNo>
    <PatientName></PatientName>
    <Medicare></Medicare>
    <VisitDetails>
      <VDate></VDate>      
      <Amount></Amount>
      <NonCoveredAmount></NonCoveredAmount>
    </VisitDetails>   
  </PatientDetails>
</Output>

Now, while there will always be one "Account Holder" there will be anywhere from 0 to multiple visits. Subsequently, there will be list of 0 or more Patients, and then nested within the patients, there will be 0 or more visit details.

I do not control the structure. I need to take the collected data I receive and create the XML. I'll be receiving data on a single account holder which may have any number of the subsequent elements.

I have classes for AccountHolder, Visit, PatientDetails, and VisitDetails. However, I am unsure as to the best method for building out the XML dynamically as I read the source data? At first, I was thinking on gathering the data in various collections.

Answer 1

Try following :

using System;
using System.Linq;
using System.Text;
using System.Collections;
using System.Collections.Generic;
using System.Xml;
using System.Xml.Serialization;

namespace ConsoleApp2
{
    class Program
    {
        const string FILENAME = @"c:\temp\test.xml";   
        static void Main(string[] args)
        {
            Output output = new Output()
            {
                Accountholder = new AccountHolder()
                {
                    Name = "",
                    Address1 = "",
                    City = "",
                    State = "",
                    ZipCode = ""
                },
                Visits = new Visits(),
                PatientDetails = new PatientDetails()
                {
                    AccNo = "",
                    PatientName = "",
                    Medicare = "",
                    VisitDetails = new List<VisitDetails>()
                    {
                        new VisitDetails()
                    }
                }
            };

            XmlSerializerNamespaces namespaces = new XmlSerializerNamespaces();
            namespaces.Add(string.Empty, "http://xxxx/xxx.xsd");

            XmlWriterSettings settings = new XmlWriterSettings();
            settings.Indent = true;
            XmlWriter writer = XmlWriter.Create(FILENAME, settings);
            XmlSerializer serializer = new XmlSerializer(typeof(Output));
            serializer.Serialize(writer, output);
        }
    }
    [XmlRoot(Namespace = "http://xxxx/xxx.xsd")]
    public class Output
    {
        public AccountHolder Accountholder { get; set; }
        public Visits Visits { get; set; }
        public PatientDetails PatientDetails { get; set; }
    }
    public class AccountHolder
    {
        public string Name { get; set; }
        public string Address1 {  get; set; }
        public string City { get; set; }
        public string State { get; set; }
        public string ZipCode { get; set; }
    }
    public class Visits
    {
        public DateTime VisitDate { get; set; }
        public decimal Copay { get; set; }
        public decimal CoInsurance { get; set; }
    }
    public class PatientDetails
    {
        public string AccNo { get; set; }
        public string PatientName { get; set; }
        public string Medicare { get; set; }
        [XmlElement]
        public List<VisitDetails> VisitDetails { get; set; }
    }
    public class VisitDetails
    {
        public DateTime VDate { get; set; }
        public decimal Amount { get; set; }
        public decimal NonCoveredAmount { get; set; }
    }

 
}