public string ToXml()
{
// using LINQ to save to Xml
// create an "inner" element to hold
// the list of Grouping variables
// could be 0 or more
XElement groups = new XElement("GroupVariables");
foreach (string var in VariableGroups)
{
groups.Add(new XElement("GroupVariable", var));
}
XDocument doc = new XDocument(
new XDeclaration("1.0", "utf-8", string.Empty),
new XElement("RunningTotalsTask",
new XElement("Version", version),
new XElement("FilterSettings", FilterSettings.ToXml()),
new XElement("DataOut", DataOut),
new XElement("MeasureVar", VariableMeasure),
new XElement("TotalsVar", VariableTotal),
groups
)
);
return(doc.ToString());
}