internal override void LoadFromXml(XElement xRoot)
{
//TODO: notwendig? oder doch nur if (xRoot.Element(XmlConstants.Formula) != null)
//if (xRoot.Element(XmlConstants.Formula) != null)
if (xRoot != null)
{
if (xRoot.Name.LocalName == XmlConstants.Formula)
{
FormulaTree = new XmlFormulaTree(xRoot);//.Element(XmlConstants.Formula));
}
}
}