Effective C# (Covers C# 4.0): 50 Specific Ways to Improve Your C# (Effective Software Development Series)

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Author: Bill Wagner

ISBN-10: 0321658701

ISBN-13: 9780321658708

Category: Database Administration & Management

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C# has matured over the past decade: It’s now a rich language with generics, functional programming concepts, and support for both static and dynamic typing. This palette of techniques provides great tools for many different idioms, but there are also many ways to make mistakes. In Effective C#, Second Edition, respected .NET expert Bill Wagner identifies fifty ways you can leverage the full power of the C# 4.0 language to express your designs concisely and clearly.Effective C#, Second Edition, follows a clear format that makes it indispensable to hundreds of thousands of developers: clear, practical explanations, expert tips, and plenty of realistic code examples. Drawing on his unsurpassed C# experience, Wagner addresses everything from types to resource management to dynamic typing to multicore support in the C# language and the .NET framework. Along the way, he shows how to avoid common pitfalls in the C# language and the .NET environment. You’ll learn how to Use both types of C# constants for efficiency and maintainability (see Item 2) Employ immutable data types to promote multicore processing (see Item 20) Minimize garbage collection, boxing, and unboxing (see Items 16 and 45) Take full advantage of interfaces and delegates (see Items 22 though 25) Make the most of the parallel framework (see Items 35 through 37) Use duck typing in C# (see Item 38) Spot the advantages of the dynamic and Expression types over reflection (see Items 42 and 43) Assess why query expressions are better than loops (see Item 8) Understand how generic covariance and contravariance affect your designs (see Item 29) See how optional parameters can minimize the number of method overloads (see Item 10)You’re already a successful C# programmer–this book will help you become an outstanding one.

Introduction xiiiChapter 1: C# Language Idioms 1Item 1: Use Properties Instead of Accessible Data Members 1Item 2: Prefer readonly to const 8Item 3: Prefer the is or as Operators to Casts 12Item 4: Use Conditional Attributes Instead of #if 20Item 5: Always Provide ToString() 28Item 6: Understand the Relationships Among the Many Different Concepts of Equality 36Item 7: Understand the Pitfalls of GetHashCode() 44Item 8: Prefer Query Syntax to Loops 51Item 9: Avoid Conversion Operators in Your APIs 56Item 10: Use Optional Parameters to Minimize Method Overloads 60Item 11: Understand the Attraction of Small Functions 64Chapter 2: .NET Resource Management 69Item 12: Prefer Member Initializers to Assignment Statements 74Item 13: Use Proper Initialization for Static Class Members 77Item 14: Minimize Duplicate Initialization Logic 79Item 15: Utilize using and try/finally for Resource Cleanup 87Item 16: Avoid Creating Unnecessary Objects 94Item 17: Implement the Standard Dispose Pattern 98Item 18: Distinguish Between Value Types and Reference Types 104Item 19: Ensure That 0 Is a Valid State for Value Types 110Item 20: Prefer Immutable Atomic Value Types 114Chapter 3: Expressing Designs in C# 125Item 21: Limit Visibility of Your Types 126Item 22: Prefer Defining and Implementing Interfaces to Inheritance 129Item 23: Understand How Interface Methods Differ from Virtual Methods 139Item 24: Express Callbacks with Delegates 143Item 25: Implement the Event Pattern for Notifications 146Item 26: Avoid Returning References to Internal Class Objects 154Item 27: Prefer Making Your Types Serializable 157Item 28: Create Large-Grain Internet Service APIs 166Item 29: Support Generic Covariance and Contravariance 171Chapter 4: Working with the Framework 179Item 30: Prefer Overrides to Event Handlers 179Item 31: Implement Ordering Relations with IComparable<T> and IComparer<T> 183Item 32: Avoid ICloneable 190Item 33: Use the new Modifier Only to React to Base Class Updates 194Item 34: Avoid Overloading Methods Defined in Base Classes 198Item 35: Learn How PLINQ Implements Parallel Algorithms 203Item 36: Understand How to Use PLINQ for I/O Bound Operations 215Item 37: Construct Parallel Algorithms with Exceptions in Mind 220Chapter 5: Dynamic Programming in C# 227Item 38: Understand the Pros and Cons of Dynamic 227Item 39: Use Dynamic to Leverage the Runtime Type of Generic Type Parameters 236Item 40: Use Dynamic for Parameters That Receive Anonymous Types 239Item 41: Use DynamicObject or IDynamicMetaObjectProvider for Data-Driven Dynamic Types 243Item 42: Understand How to Make Use of the Expression API 254Item 43: Use Expressions to Transform Late Binding into Early Binding 261Item 44: Minimize Dynamic Objects in Public APIs 267Chapter 6: Miscellaneous 275Item 45: Minimize Boxing and Unboxing 275Item 46: Create Complete Application-Specific Exception Classes 279Item 47: Prefer the Strong Exception Guarantee 284Item 48: Prefer Safe Code 294Item 49: Prefer CLS-Compliant Assemblies 298Item 50: Prefer Smaller, Cohesive Assemblies 303Index 309