Chapter 1: C# Language Idioms 1

Item 1: Use Properties Instead of Accessible Data Members 1

Item 2: Prefer readonly to const 8

Item 3: Prefer the is or as Operators to Casts 12

Item 4: Use Conditional Attributes Instead of #if 20

Item 5: Always Provide ToString() 28

Item 6: Understand the Relationships Among the Many Different Concepts of Equality 36

Item 7: Understand the Pitfalls of GetHashCode() 44

Item 8: Prefer Query Syntax to Loops 51

Item 9: Avoid Conversion Operators in Your APIs 56

Item 10: Use Optional Parameters to Minimize Method Overloads 60

Item 11: Understand the Attraction of Small Functions 64

Chapter 2: .NET Resource Management 69

Item 12: Prefer Member Initializers to Assignment Statements 74

Item 13: Use Proper Initialization for Static Class Members 77

Item 14: Minimize Duplicate Initialization Logic 79

Item 15: Utilize using and try/finally for Resource Cleanup 87

Item 16: Avoid Creating Unnecessary Objects 94

Item 17: Implement the Standard Dispose Pattern 98

Item 18: Distinguish Between Value Types and Reference Types 104

Item 19: Ensure That 0 Is a Valid State for Value Types 110

Item 20: Prefer Immutable Atomic Value Types 114

Chapter 3: Expressing Designs in C# 125

Item 21: Limit Visibility of Your Types 126

Item 22: Prefer Defining and Implementing Interfaces to Inheritance 129

Item 23: Understand How Interface Methods Differ from Virtual Methods 139

Item 24: Express Callbacks with Delegates 143

Item 25: Implement the Event Pattern for Notifications 146

Item 26: Avoid Returning References to Internal Class Objects 154

Item 27: Prefer Making Your Types Serializable 157

Item 28: Create Large-Grain Internet Service APIs 166

Item 29: Support Generic Covariance and Contravariance 171

Chapter 4: Working with the Framework 179

Item 30: Prefer Overrides to Event Handlers 179

Item 31: Implement Ordering Relations with IComparable<T> and IComparer<T> 183

Item 32: Avoid ICloneable 190

Item 33: Use the new Modifier Only to React to Base Class Updates 194

Item 34: Avoid Overloading Methods Defined in Base Classes 198

Item 35: Learn How PLINQ Implements Parallel Algorithms 203

Item 36: Understand How to Use PLINQ for I/O Bound Operations 215

Item 37: Construct Parallel Algorithms with Exceptions in Mind 220

Chapter 5: Dynamic Programming in C# 227

Item 38: Understand the Pros and Cons of Dynamic 227

Item 39: Use Dynamic to Leverage the Runtime Type of Generic Type Parameters 236

Item 40: Use Dynamic for Parameters That Receive Anonymous Types 239

Item 41: Use DynamicObject or IDynamicMetaObjectProvider for Data-Driven Dynamic Types 243

Item 42: Understand How to Make Use of the Expression API 254

Item 43: Use Expressions to Transform Late Binding into Early Binding 261

Item 44: Minimize Dynamic Objects in Public APIs 267

Chapter 6: Miscellaneous 275

Item 45: Minimize Boxing and Unboxing 275

Item 46: Create Complete Application-Specific Exception Classes 279

Item 47: Prefer the Strong Exception Guarantee 284

Item 48: Prefer Safe Code 294

Item 49: Prefer CLS-Compliant Assemblies 298

Item 50: Prefer Smaller, Cohesive Assemblies 303

Index 309

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