Manually Create classes to map to XML Request Response

[sambay]

I have been assigned to implement an interface to an API that uses XML request/response.The API providers don't provide any xsd(s) for the XML calls.I generated the C# classes using xsd.exe: .xml -> .xsd -> .csHowever, I did not find the generated classes satisfactory, as the calls include a lot of lists, which xsd.exe doesn't handle properly.Should I take the pain and create classes manually that maps to all the request/responses? That might help in maintaining the code easily later on.Or should I just use Xml classes given by .Net, and write methods to create the XML request/responses? That will take lesser time, but may become tough in the maintenance phase.Here is a sample class that I have created for a corresponding XML element:XML Element\[code\]<Product ID="41172" Description="2 Pers. With Breakfast" NonRefundable="YES" StartDate="2010-01-01" EndDate="2010-06-30" Rate="250.00" Minstay="1" />\[/code\]The corresponding class\[code\]internal class ProductElement : IElement{ private const string ElementName = "Product"; private const string IdAttribute = "ID"; private const string DescriptionAttribute = "Description"; private const string NonRefundableAttribute = "NonRefundable"; private const string StartDateAttribute = "StartDate"; private const string EndDateAttribute = "EndDate"; private const string RateAttribute = "Rate"; private const string MinStayAttribute = "Minstay"; private string Id { get; private set; } internal string Description { get; private set; } internal bool IsNonRefundable { get; private set; } private DateRange _dateRange; private string ParseFormat = "yyyy-MM-dd"; private decimal? _rate; private int? _minStay; internal ProductElement(string id, DateRange dateRange, decimal? rate, int? minStay) { this.Id = id; this._dateRange = dateRange; this._rate = rate; this._minStay = minStay; } internal ProductElement(XElement element) { this.Id = element.Attribute(IdAttribute).Value; this.Description = element.Attribute(DescriptionAttribute).Value; this.IsNonRefundable = element.Attribute(NonRefundableAttribute).Value.IsEqual("yes") ? true : false; } public XElement ToXElement() { var element = new XElement(ElementName); element.SetAttributeValue(IdAttribute, _id); element.SetAttributeValue(StartDateAttribute, _dateRange.Start.ToString(ParseFormat, CultureInfo.InvariantCulture)); element.SetAttributeValue(EndDateAttribute, _dateRange.End.ToString(ParseFormat, CultureInfo.InvariantCulture)); element.SetAttributeValue(RateAttribute, decimal.Round(_rate.Value, 2).ToString()); element.SetAttributeValue(MinStayAttribute, _minStay.Value.ToString()); return element; }}\[/code\]At times, I think I am taking too much pain. Sometimes, I think the pain is worth taking.What is your opinion, people? Also, any improvements in my class design?