private string ReCapitalizePartName(string partName)
{
partName = partName.ToLower();
if (partName == cContent.ToLower()) partName = cContent;
else if (partName == cPresentation.ToLower()) partName = cPresentation;
else if (partName == cListC.ToLower()) partName = cListC;
else if (partName == cListP.ToLower()) partName = cListP;
else throw new Exception("Wanted to capitalize part name - but part name unknown: " + partName);
return partName;
}