Using HTMLAgility Pack to Extract Links
- by Soham
Hi Folks,
Consider this simplest piece of code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using HtmlAgilityPack;
namespace WebScraper
{
class Program
{
static void Main(string[] args)
{
HtmlDocument doc = new HtmlDocument();
doc.LoadHtml("http://www.google.com");
foreach (HtmlNode link in doc.DocumentNode.SelectNodes("//a[@href]"))
{
}
}
}
}
This effectively doesnt do anything at all, and is copied/inspired from various other StackOverflow questions like this.
When compiling this, there is a runtime error which says "Object reference not set to an instance of an object." highlighting the foreach line.
I can't understand, why the environment has become irritable to this humble,innocent and useless piece of code.
I would also like to know, does HTMLAgilityPack accept HTML classes as nodes?
