Attributes in C#

Question

I know that C# (and .NET in general) is big on attributes. However, despite the fact I have programmed in C# for many years, I haven\'t found myself ever using them. Would s

Answer 1

I use attributes for the following:

• Communicating with a plug-in architecture
• Telling another framework what to do with the code (NUnit, for instance)
• Adding metadata for use with other code (See PropertyGrid)
• Mapping objects to databases (See Castle ActiveRecord)
• When writing my own APIs to allow users to communicate metadata
• In framework code to tell the debugger to skip over it

Those are off the top of my head. I use them in many other places

Answer 2

Class Attribute definition is available here

ClassInterfaceAttribute : Indicates the type of class interface to be generated for a class exposed to COM, if an interface is generated at all.

ComDefaultInterfaceAttribute : Specifies a default interface to expose to COM. This class cannot be inherited.

ComVisibleAttribute: Controls accessibility of an individual managed type or member, or of all types within an assembly, to COM.