Difference between OnActionExecuted and OnResultExecuting

Question

What is the difference between OnActionExecuted and OnResultExecuting? Do they both get fired right after each other once the action has been processed or does something hap

Answer 1

They get called after one another.

There can be no initialisation, since the ActionResult you are executing may not be rendering a View - ActionResults are free to do whatever they choose: return JSON, return a File, issue a redirect, etc.