C# 3.0 Cookbook

C# 3.0 Cookbook

Jay Hilyard

Language: English

Pages: 896

ISBN: 059651610X

Format: PDF / Kindle (mobi) / ePub

Completely updated for C# 3.0 and the .NET 3.5 platform, the new edition of this bestseller offers more than 250 code recipes to common and not-so-common problems that C# programmers face every day. Every recipe in the book has been reconsidered with more than a third of them rewritten to take advantage of new C# 3.0 features. If you prefer solutions you can use today to general C# language instruction, and quick answers to theory, this is your book.

C# 3.0 Cookbook offers a new chapter on LINQ (language integrated query), plus two expanded chapters for recipes for extension methods, lambda functions, object initializers, new synchronization primitives and more. The new edition is also complemented by a public wiki, which not only includes all of the C# 2.0 recipes from the previous edition unchanged by the release of C# 3.0, but invites you to suggest better ways to solve those tasks.

Here are some of topics covered:

  • LINQ
  • Numeric data types and Enumerations
  • Strings and characters
  • Classes and structures
  • Generics
  • Collections
  • Exception handling
  • Delegates, events, and lambda expressions
  • Filesystem interactions
  • Web site access
  • XML usage (including LINQ to XML, XPath and XSLT)
  • Networking
  • Threading
  • Data Structures & Algorithms

Each recipe in the book includes tested code that you can download from oreilly.com and reuse in your own applications, and each one includes a detailed discussion of how and why the underling technology works. You don't have to be an experienced C# or .NET developer to use C# 3.0 Cookbook. You just have to be someone who wants to solve a problem now, without having to learn all the related theory first.

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But looks can be deceiving. Let’s try to simplify the following equation: (!X & Y) | (X & !Y) Using theorem T24, you can derive the following expression: (!X | X) & (!X | !Y) & (Y | X) & (Y | !Y) Using theorem T2, you can remove the first and last parenthesized expressions: (!X | !Y) & (Y | X) Finally, using theorem T3, you can minimize the equation once again to the following form: !(X & Y) & (Y | X) You were able to remove only a single operator from this equation. This optimization might.

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To reflect that. It is worth mentioning that although C# is now at version 3.0, the .NET Framework has progressed to version 3.5. .NET 3.0 introduced Windows Communication Foundation, Windows Presentation Foundation, and Windows Workflow Foundation as additional functionality to the 2.0 framework base, but C# was not changed. Now in C# 3.0, there is a bunch of new functionality, mostly due to LINQ and the ability to do more functional programming. How This Book Is Organized This book is.

Solution You have two choices when declaring a constant value in your code. You can use a readonly field or a const field. Each has its own strengths and weaknesses. However, if you need to initialize a constant field at runtime, you must use a readonly field: public class Foo { public readonly int bar; public Foo( ) {} Initializing a Constant Field at Runtime | 117 public Foo(int constInitValue) { bar = constInitValue; } // Rest of class... } This is not possible using a const field. A.

Counterpart | 167 4.10 Using foreach with Generic Dictionary Types Problem You need to enumerate the elements within a type that implements System. Collections.Generic.IDictionary, such as System.Collections.Generic.Dictionary or System.Collections.Generic.SortedList. Solution The simplest way is to use the KeyValuePair structure in a foreach loop, as shown here: // Create a Dictionary object and populate it Dictionary myStringDict = new Dictionary( ) { { 1, "Foo" },.

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