Well, basically I have a Windows Phone 8.1 app that's supposed to download the html file and parse it using HtmlAgilityPack-PCL and LINQ.
var nodes = from tr in doc.DocumentNode.Descendants("body") from td in tr.Descendants("div").Where(x => x.Attributes["id"].Value == "screen")select tr;
Then I'm trying to get the node from nodes:
HtmlNode node = nodes.FirstOrDefault();
And this is the point where i have an exeption "Object reference not set to an instance of an object." The html file definitely has the div I am looking for. So what am I doing wrong?
you probably mean
var node = doc.DocumentNode.Descendants("div"). Where(div => div.GetAttributeValue("id", string.Empty) == "screen"). FirstOrDefault();
if that does not work feel free to share your html or the relevant part of it.