An Attribute is a declarative tag which can be used to provide information to the compiler about the behaviour of the C# elements such as classes and assemblies.

C# provides convenient technique that will handle tasks such as performing compile time operations , changing the behaviour of a method at runtime or maybe even handle unmanaged code.

C# Provides many Built-in Attributes

Some Popular ones are

- Obsolete

- DllImport

- Conditional

- WebMethod

and Many more.

Members please keep on posting more responses providing more In-Built attributes.

Regards Hefin Dsouza