How to integrate actions with .net function

How to integrate actions with .net function

I am beginner for outsystems
I create one application in .net and map succesfully with outsystems integration studio. when i clicked on edit source code in .net its open properly.
My question is:
I created one function (addition function) in .net code . I also created one actions named "addition" in integration studio. now i want to map this addition action with my addition function of .net.
please tell me steps
Thanks in advance

Hi Pranav,

I've done a small video to explain the full process:

Hope this answers your question. 

José Caldeira