What's the difference between data source and delegate?

Question

I have a fundamental question related to Cocoa frameworks design patterns.

What\'s the difference between delegate and data source?

Both of them cou

Answer 1

From my point of view, a DataSource is an object that doesn't know where the data is, and thus you should provide it. Such as telling an object how many items in a column.

A Delegate, which is a part that object shows to you, must be implemented by your class, because the object knows where the data is, but it does not know how to use it correctly.