SelectSingleNode as lowercase
I have looked on SO and found a lot of Q&A that could be the same type of problem, but I can't get mine to work, im doing something wrong.
When I extract certain tags <meta
, I do it this way
HtmlNode clnode =
htmlDoc.DocumentNode.SelectSingleNode("//meta[@http-equiv='content-type']");
This work is just fine, except that it doesn't fit
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
Ive tried using a lower case () function like this,
HtmlNode ctnode =
htmlDoc.DocumentNode.SelectSingleNode("//meta[lower-case(@http-equiv)='content-type']");
but that won't work.
I am using the latter HtmlAgilityPack
.
How can I solve this? Maybe a better way?
+3
Kay nelson
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1 answer
If you want to use xpath selection it HtmlAgilityPack
uses XPath 1.0 as far as I know , so you have to resort to some ugly hacks like:
HtmlNode clnode = htmlDoc.DocumentNode.SelectSingleNode("//meta[translate(@http-equiv,'ABCDEFGHIJKLMNOPQRSTUVWXYZ','abcdefghijklmnopqrstuvwxyz')='content-type']");
Alternatively, you can simply use LINQ:
var clnode= htmlDoc.DocumentNode
.Elements("meta")
.SingleOrDefault(el => el.Attributes["http-equiv"].Value.ToLower() == "content-type");
+4
decPL
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