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Asked: 2026-06-08T20:56:49+00:00

I would like to be able to create a collection of nodes where the

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I would like to be able to create a collection of nodes where the text starts with a word and then a number. For example, given the following:

<p>FINDTHIS 1</p>
<p>FINDTHIS SOMETEXT</p>
<p>FINDTHIS 2</p>

I would like to be able to create a collection consisting of two paragraph nodes: FINDTHIS 1 and FINDTHIS 2.

One possible approach would be to create an xpath query like //p[starts-with(., 'FINDTHIS ')] and then use a regular expression to determine whether or not the next character is a number. If I wanted to obtain a list of matches that returned the above criteria, I could create a regular expression object and test the text for each member in the collection.

Is there a way to utilize a regular expression directly within the selector using HtmlAgilityPack?

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1 Answer

  1. Editorial Team

    No, the HTML Agility Pack does not currently support this. It supports XPath version 1 queries, which does not support regular expressions.

    That said, you’ll have to do as you recommended and select using the XPath expression up to the point where you want to use a regular expression, and then use the Where extension method to filter out the appropriate nodes based on an RegEx instance.

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