#635 – Limitations on Partial Methods

There are a few limitations on the use of partial methods.  A partial method

• Can’t have access modifiers, but is implicitly private
• Can’t be virtual and can’t override or replace a virtual method in a base class (can’t use keyword virtual, new or override)
• Can’t be sealed
• Can’t be abstract
• Can’t be marked as external with the extern keyword
• Must have a return type of void
• Must not have any out parameters
• Can’t directly implement an interface method (since interface methods are public)