Download E-books C# 4.0 Pocket Reference (Pocket Reference (O'Reilly)) PDF

By Joseph Albahari

When you are programming C# 4.0 and want a bit aid, this tightly centred and useful publication tells you precisely what you want to comprehend -- with no lengthy introductions or bloated examples. it is excellent as a succinct fast reference or as a consultant to get you speedily in control in case you already understand Java, C++, or an prior model of C#.

Written through the authors of the acclaimed C# 4.0 in a Nutshell (O’Reilly), this ebook covers the total C# 4.0 language -- with out skimping at the info -- including:

  • Features new to C# 4.0, comparable to dynamic binding, non-compulsory and named parameters, and sort parameter variance
  • All of C#'s fundamentals
  • Advanced subject matters, together with operator overloading, customized conversions, kind constraints, covariance and contravariance, lambda expressions and closures, iterators, nullable forms, and operator lifting
  • LINQ, beginning with sequences, lazy execution, and traditional question operators; completing with an entire connection with question expressions
  • Unsafe code and tips, customized attributes, preprocessor directives, and XML documentation

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Wowebook. com> Here’s a whole record of preprocessor directives: Preprocessor directive motion #define image Defines image #undef image Undefines image #if image [operator symbol2]... image to check operators are ==, ! =, &&, and || through #else, #elif, and #endif #else Executes code to next #endif #elif image [operator symbol2] Combines #else department and #if try #endif Ends conditional directives #warning textual content textual content of the caution to seem in #error textual content textual content of the mistake to seem in com- #line [number ["file"] | hidden] quantity specifies the road in resource code; dossier is the filename to seem in desktop output; hidden in- compiler output piler output structs debuggers to bypass over code from this element till the subsequent #line directive #region identify Marks the start of an overview #endregion Ends an summary quarter #pragma caution See under Pragma caution The compiler generates a caution whilst it spots anything on your code that turns out unintended. not like mistakes, warnings don’t typically hinder your program from compiling. Compiler warnings may be tremendous invaluable in recognizing insects. Their usefulness, even though, is undermined in the event you get fake Preprocessor Directives | 183 obtain from Library of Wow! publication warnings. In a wide program, preserving an exceptional signal-tonoise ratio is key if the “real” warnings are to get spotted. To this impact, the compiler helps you to selectively suppress warnings with the #pragma caution directive. during this instance, we coach the compiler to not warn us concerning the box Mes sage no longer getting used: public classification Foo { static void Main() { } } #pragma caution disable 414 static string Message = "Hello"; #pragma caution fix 414 Omitting the quantity within the #pragma caution directive disables or restores all caution codes. while you're thorough in making use of this directive, you could collect with the /warnaserror switch—this tells the compiler to regard any residual warnings as blunders. XML Documentation A documentation remark is a section of embedded XML that records a kind or member. A documentation remark comes instantly ahead of a sort or member assertion, and starts off with 3 slashes: ///

Cancels a working question.

public void Cancel() { ... } Multiline reviews might be performed both like this: ///

/// Cancels a operating question ///

public void Cancel() { ... } or like this (notice the additional celebrity on the start): 184 | C# four. zero Pocket Reference obtain from Library of Wow! book /**

Cancels a working question.

*/ public void Cancel() { ... } in case you collect with the /doc directive, the compiler extracts and collates documentation reviews right into a unmarried XML dossier. This has major makes use of: • If positioned within the similar folder because the compiled meeting, visible Studio instantly reads the XML dossier and makes use of the knowledge to supply IntelliSense member listings to shoppers of the meeting of an identical identify.

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