Question : asp.net c# function required with RegEx

I need a c# function to find all ocurrances of a HTML tag in a string and replace it with a different HTML tag based on the tag's ID.

I want to find all occurances of...

<div class="casestudy" id="123"></div>

...and replace it with some HTML based on the id, for example...

<div class="page_case_study_link_container"><h2>Case Study</h2>Title</div>

So I need a complete function which will do this, and I imagine the best way would be with  regular expressions. I can add the extra code that retrieves the Title based on the ID, but I need the ID extracted.

Answer : asp.net c# function required with RegEx

The keyboard shortcut for it is hold down the Ctl and W keys at the same time and while holding them down press the J key.