protected internal override void CreateNodes(XmlHelper helper, string path)
{
if (Font.HasValue)
{
Font.CreateNodes(helper, "d:font");
}
if (NumberFormat.HasValue)
{
NumberFormat.CreateNodes(helper, "d:numFmt");
}
if (Fill.HasValue)
{
Fill.CreateNodes(helper, "d:fill");
}
if (Border.HasValue)
{
Border.CreateNodes(helper, "d:border");
}
}