BuiltInDocumentPropertiesLines Property

public int Lines { get; set; }

Public Property Lines As Integer
	Get
	Set

public:
property int Lines {
	int get ();
	void set (int value);
}

member Lines : int with get, set

public void Content()
{
    // Open a document with a couple paragraphs of content
    Document doc = new Document(MyDir + "Paragraphs.docx");

    // The properties we will work with are members of the BuiltInDocumentProperties attribute
    BuiltInDocumentProperties properties = doc.BuiltInDocumentProperties;

    // By using built in properties,
    // we can treat document statistics such as word/page/character counts as metadata that can be glanced at without opening the document
    // These properties are accessed by right-clicking the file in Windows Explorer and navigating to Properties > Details > Content
    // If we want to display this data inside the document, we can use fields such as NUMPAGES, NUMWORDS, NUMCHARS etc.
    // Also, these values can also be viewed in Microsoft Word by navigating File > Properties > Advanced Properties > Statistics
    // Page count: The PageCount attribute shows the page count in real time and its value can be assigned to the Pages property
    properties.Pages = doc.PageCount;
    Assert.AreEqual(6, properties.Pages);

    // Word count: The UpdateWordCount() automatically assigns the real time word/character counts to the respective built in properties
    doc.UpdateWordCount();
    Assert.AreEqual(1035, properties.Words);
    Assert.AreEqual(6026, properties.Characters);
    Assert.AreEqual(7041, properties.CharactersWithSpaces);

    // Line count: Count the lines in a document and assign value to the Lines property
    LineCounter lineCounter = new LineCounter(doc);
    properties.Lines = lineCounter.GetLineCount();
    Assert.AreEqual(142, properties.Lines);

    // Paragraph count: Assign the size of the count of child Paragraph-nodes to the Paragraphs built in property
    properties.Paragraphs = doc.GetChildNodes(NodeType.Paragraph, true).Count;
    Assert.AreEqual(29, properties.Paragraphs);

    // Check the real file size of our document
    Assert.AreEqual(20310, properties.Bytes);

    // Template: The Template attribute can reflect the filename of the attached template document
    doc.AttachedTemplate = MyDir + "Busniess brochure.dotx";
    Assert.AreEqual("Normal", properties.Template);          
    properties.Template = doc.AttachedTemplate;

    // Content status: This is a descriptive field
    properties.ContentStatus = "Draft";

    // Content type: Upon saving, any value we assign to this field will be overwritten by the MIME type of the output save format
    Assert.AreEqual("", properties.ContentType);

    // If the document contains links and they are all up to date, we can set this to true
    Assert.False(properties.LinksUpToDate);

    doc.Save(ArtifactsDir + "Properties.Content.docx");
}

/// <summary>
/// Util class that counts the lines in a document.
/// Upon construction, traverses the document's layout entities tree,
/// counting entities of the "Line" type that also contain real text.
/// </summary>
private class LineCounter
{
    public LineCounter(Document doc)
    {
        mLayoutEnumerator = new LayoutEnumerator(doc);

        CountLines();
    }

    public int GetLineCount()
    {
        return mLineCount;
    }

    private void CountLines()
    {
        do
        {
            if (mLayoutEnumerator.Type == LayoutEntityType.Line)
            {
                mScanningLineForRealText = true;
            }

            if (mLayoutEnumerator.MoveFirstChild())
            {
                if (mScanningLineForRealText && mLayoutEnumerator.Kind.StartsWith("TEXT"))
                {
                    mLineCount++;
                    mScanningLineForRealText = false;
                }
                CountLines();
                mLayoutEnumerator.MoveParent();
            }
        } while (mLayoutEnumerator.MoveNext());
    }

    private readonly LayoutEnumerator mLayoutEnumerator;
    private int mLineCount;
    private bool mScanningLineForRealText;
}