I would like the nodes in the collection but with iterating SelectSingleNode I keep getting the same object just node.Id is changing... What i try is to readout the webrespo
By writing
node.SelectSingleNode("//span[@itemprop='name']").InnerText
it's like you writing
doc.DocumentNode.SelectSingleNode("//span[@itemprop='name']").InnerText
To do what you want to do you should write it like this: node.SelectSingleNode(".//span[@itemprop='name']").InnerText.
This .dot / period tells make a search on the current node which is node instead on doc