xpath search for divs where the id contains specific text

Question

On my HTML page I have forty divs but I only want one div.

Using agility pack to search and get all the divs with Ids I use this XPath:

"//div[@id]"

But how do I search for divs with Ids where the id contains the text "test" like so:

<div id="outerdivtest1></div>"

Answer 1

Use the contains function:

//div[contains(@id,'test')]