Property vs Function (specifically .NET)

Question

I\'ve read some discussions about this subject, and there\'s something I just don\'t understand.

The most common answer seems to be this: use a ReadOnly Property to

Answer 1

"Cached data -> Public variable" - bad idea. This would allow another class to modify the cached data. Also, computing the data for caching might be expensive: using a read-only property allows you to defer calculation until the property is accessed.