C# language refference_11

Much of the C# language enables the programmer to specify declarative information about the entities defined in the program. For example, the accessibility of a method in a class is specified by decorating it with the method-modifiers public, protected, internal, and private. C# enables programmers to invent new kinds of declarative information, to specify declarative information for various program entities, and to retrieve attribute information in a run-time environment. For instance, a framework might define a HelpAttribute attribute that can be placed on program elements such as classes and methods to provide a mapping from program elements to documentation for...