Spazio dei nomi System.Windows.Documents.DocumentStructures

The formatting and layout of an XPS document enables different parts of the content to behave in a semantic form such as in paragraphs, tables, and lists. Humans can perceive the semantic structure of the content from its appearance; but the physical format and layout of the markup does not explicitly identify the actual semantic elements. To enable programmatic understanding of the document organization, the System.Windows.Documents.DocumentStructures namespace provides structure elements that can be used to define the document by its semantic parts.

Each page of an XPS document contains a FixedPage element that defines its content in the form of positional text runs and graphics. Through the use of document structure elements, pages of an XPS document can also be associated with StoryFragment elements that define the structure of the page in the form of sections, paragraphs, lists, figures, and tables. The NamedElement class is used to define the associations between content and structure parts of the document markup. A NamedElement is the child of a structural element, such as a table cell or bullet list item that is located in the StoryFragment hierarchy of a page. A NamedElement identifies an item in the FixedPage hierarchy of the same page. The item it refers to is the content of the structural element.

Applications that create XPS documents are not required to include structural markup, however use of document structure elements enhances the flexibility by which applications can access and use the content of a document.

For more information about structure elements of XPS documents, see Chapter 9 and Appendix E of the XML Paper Specification (XPS) available for download at http://go.microsoft.com/fwlink/?LinkID=67000.

For a list of System.Windows.Documents.DocumentStructures related example programs, see the following topics:

• Document Structure Sample

Classi

---

	Classe	Descrizione
	BlockElement	Do not use.
	FigureStructure	Represents a drawing, chart, or diagram in a document.
	ListItemStructure	Represents an item in a list or outline.
	ListStructure	Represents a list of items in a document.
	NamedElement	Identifies an element within the hierarchy of elements under a FixedPage.
	ParagraphStructure	Represents a paragraph in a document.
	SectionStructure	Represents a section of content in a document.
	SemanticBasicElement	Do not use.
	StoryBreak	Identifies the start or end of story composed of one or more StoryFragment elements.
	StoryFragment	Represents all or part of a story within an XPS document.
	StoryFragments	Represents a set of one or more StoryFragment elements.
	TableCellStructure	Represents a cell in a table.
	TableRowGroupStructure	Represents a set of one or more rows in a table.
	TableRowStructure	Represents a row of one or more cells in a table.
	TableStructure	Represents a table in a document.