Validate xml document against DTD

Question

I have generated the xml document using XDocument and create a Document type declaration (DTD).

But i could not validate the DTD against the generated XML.

What is the best way to check whether the DTD is properly created or not?

Is there any way in c# to dynamically generate the DTD?

I have explicitly created a InternalSubset in my code, what is the purpose of adding the name bookstoredoc.dtd in the line below in XDocumentType decleration?

XDocumentType docType = new XDocumentType("bookstoredoc", null,
 "bookstoredoc.dtd",
 @"<!ELEMENT bookstore (book+)>
 <!ELEMENT book (title|year|price|author+) >
 <!ATTLIST book
 category CDATA #REQUIRED>
 <!ELEMENT title (#PCDATA)>
 <!ATTLIST title
 lang CDATA #REQUIRED>
 <!ELEMENT year (#PCDATA)>
 <!ELEMENT price (#PCDATA)>
 <!ELEMENT author (name+)>
 <!ELEMENT name (#PCDATA)>");

Code:

var bookObj = new BookStore();
var bookList = bookObj.GetBookStores();
XDocumentType docType = new XDocumentType("bookstoredoc", null,
 "bookstoredoc.dtd",
 @"<!ELEMENT bookstore (book+)>
 <!ELEMENT book (title|year|price|author+) >
 <!ATTLIST book
 category CDATA #REQUIRED>
 <!ELEMENT title (#PCDATA)>
 <!ATTLIST title
 lang CDATA #REQUIRED>
 <!ELEMENT year (#PCDATA)>
 <!ELEMENT price (#PCDATA)>
 <!ELEMENT author (name+)>
 <!ELEMENT name (#PCDATA)>");
var xmlDocument = new XDocument(docType, new XElement("bookstore",
 bookList.Select(x =>
 new XElement("book", new XAttribute("Name", x.Category),
 new XElement("title", new XAttribute("lang", x.Lang), x.Title),
 new XElement("year", x.Year),
 new XElement("price", x.Price),
 new XElement("author", x.Author.Select(y => new XElement("name", y.Name)))
 ))));
xmlDocument.Save(@"D:\Test.xml");

BookStore.cs

public class BookStore
{
 public BookCategory Category { get; set; }
 public string Title { get; set; }
 public List<Author> Author { get; set; }
 public int Year { get; set; }
 public double Price { get; set; }
 public string Lang { get; set; }
 public List<BookStore> GetBookStores()
 {
 var list = new List<BookStore>()
 {
 new BookStore
 {
 Category = BookCategory.COOKING,
 Title = "Everyday Italian",
 Author = new List<Author>()
 {
 new Author{ Name = "Giada De Laurentiis"}
 },
 Year = 2005,
 Price = 30.00,
 Lang = "en"
 }, new BookStore
 {
 Category = BookCategory.CHILDREN,
 Title = "Harry Potter",
 Author = new List<Author>()
 {
 new Author{ Name = "J K. Rowling"}
 },
 Year = 2005,
 Price = 29.99,
 Lang = "en"
 },new BookStore
 {
 Category = BookCategory.WEB,
 Title = "XQuery Kick Start",
 Author = new List<Author>()
 {
 new Author{ Name = "James McGovern"},
 new Author{ Name = "Per Bothner"},
 new Author{ Name = "Kurt Cagle"},
 new Author{ Name = "James Linn"},
 new Author{ Name = "Vaidyanathan Nagarajan"},
 },
 Year = 2003,
 Price = 49.99,
 Lang = "en"
 },new BookStore
 {
 Category = BookCategory.WEB,
 Title = "Learning XML",
 Author = new List<Author>()
 {
 new Author{ Name = "Erik T. Ray"}
 },
 Year = 2003,
 Price = 39.95,
 Lang = "en"
 }
 };
 return list;
 }
}
public enum BookCategory
{
 COOKING,
 CHILDREN,
 WEB
}
public class Author
{
 public string Name { get; set; }
}