remove html node from htmldocument :HTMLAgilityPack

Question

In my code, I want to remove the img tag which doesn\'t have src value. I am using HTMLAgilitypack\'s HtmlDocument object. I am finding the img whic

Answer 1

It seems you're modifying the collection during the enumeration by using HtmlNode.RemoveChild method.

To fix this you need is to copy your nodes to a separate list/array by calling e.g. Enumerable.ToList() or Enumerable.ToArray().

var nodesToRemove = doc.DocumentNode
    .SelectNodes("//img[not(string-length(normalize-space(@src)))]")
    .ToList();

foreach (var node in nodesToRemove)
    node.Remove();

If I'm right, the problem will disappear.