Question
I want to get the whole InnerText of a div that contains a certain text.
For instance: I want to retrieve the whole InnerText of the div where "hello world" was discovered when I search for "hello world" in the HTMLDocument (HTMLAgilityPack).
I tried what follows:
HtmlNode textNode = doc.DocumentNode.SelectNodes("//text()[contains(., 'hello world')]/..")
The HtmlNode containing the specified text was returned by this.
To retrieve the whole InnerText, I now want to locate the textNode's first parent div.
I appreciate you.
Accepted Answer
I believe this will work...
var nodes2 = doc.DocumentNode.SelectNodes("//div[contains(.//text(), 'Hello World')]");
And maybe even better than that is this:
var nodes3 = doc.DocumentNode.SelectNodes("//text()[contains(., 'Hello World')]/ancestor::div[1]");
Alternatively use the notation for Linq-to-XML:
var nodes =
doc.DocumentNode.Descendants("div")
.Where(
div =>
div.DescendantsAndSelf("text()").Where(text => text.InnerHtml.Contains("Hello World")).Any())
Or
var nodes4 = from div in doc.DocumentNode.Descendants("div")
from text in div.DescendantsAndSelf("text()")
where text.InnerText.Contains("Hello World")
let firstParent = text.AncestorsAndSelf("div").First()
select firstParent;
Popular Answer
Although I'm unfamiliar with HTMLAgilityPack, its syntax resembles XPath. In such scenario, the ".." function should return the discovered element's parent.
I tested this with the following website: http://ponderer.org/download/xpath/
If you enter
//li[contains(., 'about')]/../..
The div holding the ul element (which includes the li element) will be highlighted in green in the textbox.
Does this match your search criteria?
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