Google Search: find file extension with regex in c#

This content originally appeared on Modern Web Development with Chrome and was authored by Paul Kinlan

<p>I have had a search to my page where I know the reader probably didn't find what they were looking for.<p />This post is to hopefully let that user find the information that they are looking for better.<p />The Search term was "find file extension with regex in c#".<p />A simple regex that could be used in C# to find file extensions is:<p />.+.([^.]+)$<p />This will find an extension that is at the end of the string. To find an extension anywhere in a string you can use:<p />.+.([^.]+)\s<p />A regex to find a three letter extension at the end of a line:<p />.+.([^.]{3})$<p />To find a three letter extension anywhere in a string you can use:<p />.+.([^.]{3})\s<p /></p>

This content originally appeared on Modern Web Development with Chrome and was authored by Paul Kinlan