Possible Duplicate:
Properties vs Methods
In method you can type some code and in properties too. For example I have a property Name. When class name changes I would like to get some data from database and change state of my object. I can add this code to set part of my property. Other solution is to change set part to private and add method called SetName and in this method add my code.
So what is the difference? When is the point when it's not good to put some code to getter / setter and when to create own method that is used to change my property and other parts of my class?