public static void OwnerDocument()
{
// ExStart:OwnerDocument
// Open a file from disk.
Document doc = new Document();
// Creating a new node of any type requires a document passed into the constructor.
Paragraph para = new Paragraph(doc);
// The new paragraph node does not yet have a parent.
Console.WriteLine("Paragraph has no parent node: " + (para.ParentNode == null));
// But the paragraph node knows its document.
Console.WriteLine("Both nodes' documents are the same: " + (para.Document == doc));
// The fact that a node always belongs to a document allows us to access and modify
// Properties that reference the document-wide data such as styles or lists.
para.ParagraphFormat.StyleName = "Heading 1";
// Now add the paragraph to the main text of the first section.
doc.FirstSection.Body.AppendChild(para);
// The paragraph node is now a child of the Body node.
Console.WriteLine("Paragraph has a parent node: " + (para.ParentNode != null));
// ExEnd:OwnerDocument
}
public static void EnumerateChildNodes()
