Replace with regex keeping part of the pattern

Question

In the example below, how to preserve part of a pattern? The pattern search must include closing tag as spans elsewhere must not be targeted.

<

Answer 1

You need to set a capturing group and use a back reference in the replacement pattern.

regEx.Pattern = "</span>([^>]*)</h3>"
hr2 = regEx.Replace(hr2,"$1</h3>")

Or

regEx.Pattern = "</span>([^>]*</h3>)"
hr2 = regEx.Replace(hr2,"$1")