public static void AddOrUpdateOutputElements(this XsltElement root, XsltElement outputElement)
{
var existingElement = root.FirstOrDefaultXsltElement(outputElement);
if (existingElement != null)
{
existingElement.Add(outputElement.XsltElements());
return;
}
root.AddXsltElement(outputElement);
}
public static XsltElement FirstOrDefaultXsltElement(this XsltElement root, string elementName)
{
return(root?.XsltElements().FirstOrDefault(e => e.XsltElementType == XsltElementType.Element &&
e.Attributes()
.Any(a => a.Name == "name" && a.Value == elementName)));
}