C#•7mo ago

Object reference not set to an instance of an object.

root is an HtmlNode but when I try to access anything using SelectSingleNode or SelectNodes it will raise this error when trying to access any methods of them.

HtmlDocument doc = new();
doc.LoadHtml($"{url}/page/{page}/");

HtmlNode root = doc.DocumentNode;
Console.WriteLine(root.GetType());
Console.WriteLine(root.SelectSingleNode("//div").GetType());

HtmlDocument doc = new();
doc.LoadHtml($"{url}/page/{page}/");

HtmlNode root = doc.DocumentNode;
Console.WriteLine(root.GetType());
Console.WriteLine(root.SelectSingleNode("//div").GetType());

5 Replies

jcotton42•7mo ago

Does LoadHtml actually take a URL? I would assume it takes an HTML string.

AkexOP•7mo ago

it does take an html string... im suprised it did not log anything in console about it being an url ty @jcotton42

jcotton42•7mo ago

Console logging on errors isn’t a thing .net libraries do. They would throw exceptions.

AkexOP•7mo ago

im thinking in a python way I get what you mean

jcotton42•7mo ago

Quality Python libs don’t do that either.

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Object reference not set to an instance of an object.