Partial Class vs Extension Method

Question

I dont have much experience of using these 2 ways to extend a class or create extension methods against a class. By looking others work, I have a question here.

I saw pe

Answer 1

Some of differences that will determine whether you want to use a Partial Class or an Extension Method are

Partial Class

• Only works against classes in the same project/assembly
• Target class has to be marked as partial
• Has access to the Target class' fields and protected members
• Target must be a class implementation

Extension Method

• Can be applied against classes in other assembles
• Must be static, has access to only the Target classes public members
• Target of extension can be a concrete type, or an abstract type or interface