BookmarkStart

BookmarkStart class

Represents a start of a bookmark in a Word document.

To learn more, visit the Working with Bookmarks documentation article.

public class BookmarkStart : Node

Constructors

Name	Description
BookmarkStart(DocumentBase, string)	Initializes a new instance of the `BookmarkStart` class.

Properties

Name	Description
Bookmark { get; }	Gets the facade object that encapsulates this bookmark start and end.
CustomNodeId { get; set; }	Specifies custom node identifier.
virtual Document { get; }	Gets the document to which this node belongs.
virtual IsComposite { get; }	Returns `true` if this node can contain other nodes.
Name { get; set; }	Gets or sets the bookmark name.
NextSibling { get; }	Gets the node immediately following this node.
override NodeType { get; }	Returns BookmarkStart.
ParentNode { get; }	Gets the immediate parent of this node.
PreviousSibling { get; }	Gets the node immediately preceding this node.
Range { get; }	Returns a `Range` object that represents the portion of a document that is contained in this node.

Methods

Name	Description
override Accept(DocumentVisitor)	Accepts a visitor.
Clone(bool)	Creates a duplicate of the node.
GetAncestor(NodeType)	Gets the first ancestor of the specified `NodeType`.
GetAncestor(Type)	Gets the first ancestor of the specified object type.
override GetText()	Returns an empty string.
NextPreOrder(Node)	Gets next node according to the pre-order tree traversal algorithm.
PreviousPreOrder(Node)	Gets the previous node according to the pre-order tree traversal algorithm.
Remove()	Removes itself from the parent.
ToString(SaveFormat)	Exports the content of the node into a string in the specified format.
ToString(SaveOptions)	Exports the content of the node into a string using the specified save options.

Remarks

A complete bookmark in a Word document consists of a BookmarkStart and a matching BookmarkEnd with the same bookmark name.

BookmarkStart and BookmarkEnd are just markers inside a document that specify where the bookmark starts and ends.

Use the Bookmark class as a “facade” to work with a bookmark as a single object.

Examples

Shows how to add bookmarks and update their contents.

public void CreateUpdateAndPrintBookmarks()
{
    // Create a document with three bookmarks, then use a custom document visitor implementation to print their contents.
    Document doc = CreateDocumentWithBookmarks(3);
    BookmarkCollection bookmarks = doc.Range.Bookmarks;
    PrintAllBookmarkInfo(bookmarks);

    // Bookmarks can be accessed in the bookmark collection by index or name, and their names can be updated.
    bookmarks[0].Name = $"{bookmarks[0].Name}_NewName";
    bookmarks["MyBookmark_2"].Text = $"Updated text contents of {bookmarks[1].Name}";

    // Print all bookmarks again to see updated values.
    PrintAllBookmarkInfo(bookmarks);
}

/// <summary>
/// Create a document with a given number of bookmarks.
/// </summary>
private static Document CreateDocumentWithBookmarks(int numberOfBookmarks)
{
    Document doc = new Document();
    DocumentBuilder builder = new DocumentBuilder(doc);

    for (int i = 1; i <= numberOfBookmarks; i++)
    {
        string bookmarkName = "MyBookmark_" + i;

        builder.Write("Text before bookmark.");
        builder.StartBookmark(bookmarkName);
        builder.Write($"Text inside {bookmarkName}.");
        builder.EndBookmark(bookmarkName);
        builder.Writeln("Text after bookmark.");
    }

    return doc;
}

/// <summary>
/// Use an iterator and a visitor to print info of every bookmark in the collection.
/// </summary>
private static void PrintAllBookmarkInfo(BookmarkCollection bookmarks)
{
    BookmarkInfoPrinter bookmarkVisitor = new BookmarkInfoPrinter();

    // Get each bookmark in the collection to accept a visitor that will print its contents.
    using (IEnumerator<Bookmark> enumerator = bookmarks.GetEnumerator())
    {
        while (enumerator.MoveNext())
        {
            Bookmark currentBookmark = enumerator.Current;

            if (currentBookmark != null)
            {
                currentBookmark.BookmarkStart.Accept(bookmarkVisitor);
                currentBookmark.BookmarkEnd.Accept(bookmarkVisitor);

                Console.WriteLine(currentBookmark.BookmarkStart.GetText());
            }
        }
    }
}

/// <summary>
/// Prints contents of every visited bookmark to the console.
/// </summary>
public class BookmarkInfoPrinter : DocumentVisitor
{
    public override VisitorAction VisitBookmarkStart(BookmarkStart bookmarkStart)
    {
        Console.WriteLine($"BookmarkStart name: \"{bookmarkStart.Name}\", Contents: \"{bookmarkStart.Bookmark.Text}\"");
        return VisitorAction.Continue;
    }

    public override VisitorAction VisitBookmarkEnd(BookmarkEnd bookmarkEnd)
    {
        Console.WriteLine($"BookmarkEnd name: \"{bookmarkEnd.Name}\"");
        return VisitorAction.Continue;
    }
}