CustomXmlProperty constructor

Initializes a new instance of this class.

public CustomXmlProperty(string name, string uri, string value)
Parameter Type Description
name String The name of the property. Cannot be null.
uri String The namespace URI of the property. Cannot be null.
value String The value of the property. Cannot be null.


Shows how to create smart tags.

public void Create()
    Document doc = new Document();

    // A smart tag appears in a document with Microsoft Word recognizes a part of its text as some form of data,
    // such as a name, date, or address, and converts it to a hyperlink that displays a purple dotted underline.
    SmartTag smartTag = new SmartTag(doc);

    // Smart tags are composite nodes that contain their recognized text in its entirety.
    // Add contents to this smart tag manually.
    smartTag.AppendChild(new Run(doc, "May 29, 2019"));

    // Microsoft Word may recognize the above contents as being a date.
    // Smart tags use the "Element" property to reflect the type of data they contain.
    smartTag.Element = "date";

    // Some smart tag types process their contents further into custom XML properties.
    smartTag.Properties.Add(new CustomXmlProperty("Day", string.Empty, "29"));
    smartTag.Properties.Add(new CustomXmlProperty("Month", string.Empty, "5"));
    smartTag.Properties.Add(new CustomXmlProperty("Year", string.Empty, "2019"));

    // Set the smart tag's URI to the default value.
    smartTag.Uri = "urn:schemas-microsoft-com:office:smarttags";

    doc.FirstSection.Body.FirstParagraph.AppendChild(new Run(doc, " is a date. "));

    // Create another smart tag for a stock ticker.
    smartTag = new SmartTag(doc);
    smartTag.Element = "stockticker";
    smartTag.Uri = "urn:schemas-microsoft-com:office:smarttags";

    smartTag.AppendChild(new Run(doc, "MSFT"));

    doc.FirstSection.Body.FirstParagraph.AppendChild(new Run(doc, " is a stock ticker."));

    // Print all the smart tags in our document using a document visitor.
    doc.Accept(new SmartTagPrinter());

    // Older versions of Microsoft Word support smart tags.
    doc.Save(ArtifactsDir + "SmartTag.Create.doc");

    // Use the "RemoveSmartTags" method to remove all smart tags from a document.
    Assert.AreEqual(2, doc.GetChildNodes(NodeType.SmartTag, true).Count);


    Assert.AreEqual(0, doc.GetChildNodes(NodeType.SmartTag, true).Count);

/// <summary>
/// Prints visited smart tags and their contents.
/// </summary>
private class SmartTagPrinter : DocumentVisitor
    /// <summary>
    /// Called when a SmartTag node is encountered in the document.
    /// </summary>
    public override VisitorAction VisitSmartTagStart(SmartTag smartTag)
        Console.WriteLine($"Smart tag type: {smartTag.Element}");
        return VisitorAction.Continue;

    /// <summary>
    /// Called when the visiting of a SmartTag node is ended.
    /// </summary>
    public override VisitorAction VisitSmartTagEnd(SmartTag smartTag)
        Console.WriteLine($"\tContents: \"{smartTag.ToString(SaveFormat.Text)}\"");

        if (smartTag.Properties.Count == 0)
            Console.WriteLine("\tContains no properties");
            Console.Write("\tProperties: ");
            string[] properties = new string[smartTag.Properties.Count];
            int index = 0;

            foreach (CustomXmlProperty cxp in smartTag.Properties)
                properties[index++] = $"\"{cxp.Name}\" = \"{cxp.Value}\"";

            Console.WriteLine(string.Join(", ", properties));

        return VisitorAction.Continue;

See Also