Picture box change event?

Hello,
More help needed....again...

I want to run code whenever a picture changes in a picture box. I looked through the events and the closest thing I could find was the Paint event. Is this where I would put code for when the picture changes? I was hoping to find a change event of some sort. I just don't want to have to call a method everytime I change the picture....boy am I lazy...

Ok, so far I created a method that I am using to change an image in the picturebox along with all other stuff I need to run when the picture changes, but I still would like to know the answer to my previous question.