public static TwoTransparent2 Create()
{
TwoTransparent2 ttxf = new TwoTransparent2();
XmlDocument doc = new XmlDocument();
ttxf._frag = doc.CreateDocumentFragment();
ttxf._frag2 = doc.CreateDocumentFragment();
ttxf._frag2.AppendChild( doc.CreateElement( "sub2" ) ).InnerText = "3";
ttxf._frag2.AppendChild( doc.CreateElement( "sub2" ) ).InnerText = "4";
return ttxf;
}