private void NewXmlNode()
{
IStyle style = this.Style;
object doc = style.Document;
IDocument document = doc as IDocument;
System.Xml.XmlNode node = document.CreateNode("table-properties", "style");
this.Node = node;
//Set default properties
this.Width = "16.99cm";
this.Align = "margin";
this.Shadow = "none";
}