By Ben Albahari

Concise yet thorough, this moment variation of C# necessities introduces the Microsoft C#programming language, together with the Microsoft .NET universal Language Runtime (CLR) and.NET Framework classification Libraries (FCL) that help it. This book's compact structure and tersepresentation of key suggestions function a roadmap to the web documentation integrated with the Microsoft .NET Framework SDK; the various examples offer much-needed context.

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9 Classes and Structs Class declaration syntax: attributes? unsafe? access-modifier? new? [ abstract | sealed ]? class class-name [: base-class | : interface+ | : base-class, interface+ ]? { class-members } Struct declaration syntax: attributes? unsafe? access-modifier? new? struct struct-name [: interface+]? { struct-members } A class or struct combines data, functions, and nested types into a new type, which is a key building block of C# applications. The body of a class or struct is comprised of three kinds of members: data, function, and type.

If a delegate has a non-void return type, then the value of the last delegate invoked is returned. Note that the += and -= operations on a delegate are not thread-safe. Delegate class. 2 Delegates Compared with Function Pointers A delegate is behaviorally similar to a C function pointer (or Delphi closure) but can hold multiple methods and the instance associated with each nonstatic method. In addition, delegates, like all other C# constructs used outside unsafe blocks, are type-safe and secure, which means you're protected from pointing to the wrong type of method or a method that you don't have permission to access.

Delegate [ void | type ] delegate-name (parameter-list); 62 A delegate is a type that defines a method signature so delegate instances can hold and invoke a method or list of methods that match its signature. A delegate declaration consists of a name and a method signature. [4] [4] The signature of a delegate method includes its return type and allows the use of a params modifier in its parameter list, expanding the list of elements that characterize an ordinary method signature. The actual name of the target method is irrelevant to the delegate.

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