I'm developing an app windows phone 8 and i was wondering making null is a good way to dispose an object from memory or should i do something different or extra to dispose an object...!
Moreover, I have a class name 'A' and this 'A class contains observable collections and other kind of objects. Therefore, when I feel i don't need to use the class anymore, for example leaving the page, I make that class 'A' object null. Is it a good practice to do or should I do something different?