Xpath query to find elements which contain a certain descendant

Question

I\'m using Html Agility Pack to run xpath queries on a web page. I want to find the rows in a table which contain a certain interesting element. In the example below, I wa

Answer 1

I know this isn't what the OP was asking, but if you wanted to find an element that had a descendant with a particular attribute, you could do something like this:

//table[@name='important']/tr[.//*[@attr='value']]

Answer 2

I know it is a late answer but why not going the other way around. Finding all <interestingtag/> tags and then select the parent <tr> tag.

//interestingtag/ancestor::tr

Answer 3

Actually, you need to look for a descendant, not a child:

//table[@name='important']/tr[descendant::interestingtag]

Answer 4

"has a descendant named interestintag" is spelled .//interestintag in XPath, so the expression you are looking for is:

//table[@name='important']/tr[.//interestingtag]