C# Essentials (2nd Edition) by Ben Albahari

By Ben Albahari

Concise yet thorough, this moment version of C# necessities introduces the Microsoft C# programming language, together with the Microsoft .NET universal Language Runtime (CLR) and .NET Framework type Libraries (FCL) that help it. This book?s compact structure and terse presentation of key recommendations function a roadmap to the net documentation incorporated with the Microsoft .NET Framework SDK; the various examples supply much-needed context. This re-creation has been up to date to hide the ultimate liberate of the C# language. as well as overviews of C#, the CLR, and the FCL, this new version of C# necessities covers: each C# language aspect and its syntax, in reference structure, together with new keyword phrases the main C# datatypes, with code examples universal C# programming projects Interoperation with legacy Win32 APIs and COM elements, and using C/C++ variety guidelines in the controlled context of the CLR universal improvement concerns C# necessities is a simple means for knowledgeable programmers to guage and wake up to hurry quick at the language most suitable to constructing net purposes and companies at the new Microsoft .NET platform.

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First, memory is automatically reclaimed with a garbage collector, so a destructor in C# is solely used for non-memory resources. Second, destructor calls are non-deterministic. The garbage collector calls an object's destructor when it determines it is no longer referenced. However, it may determine that this is an undefined period of time after the last reference to the object disappeared. The C# compiler expands a destructor into a Finalize method override: protected override void Finalize( ...

A struct can implement an interface but can't inherit from a class. Earlier we defined polymorphism as the ability to perform the same operations on many types, as long as each type shares a common subset of characteristics. The purpose of an interface is precisely for defining such a set of characteristics. An interface is comprised of one or more methods, properties, indexers, and events. These members are always implicitly public and implicitly abstract (therefore virtual and nonstatic). 1 Defining an Interface An interface declaration is like a class declaration, but it provides no implementation for its members, since all its members are implicitly abstract.

Statements. SQLTypes. SQLBoolean struct provides this functionality: public struct SQLBoolean ... { int value; ... value); } public bool IsNull { get { return value == 0;} } ... WriteLine("True"); else if (! 5 Indirectly overloadable operators The && and || operators are automatically evaluated from & and |, so they don't need to be overloaded. 6 earlier in this chapter). , += is evaluated from +). 9 Instance Constructors An instance constructor allows you to specify the code to be executed when a class or struct is instantiated.

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