C# 10 Quick Syntax Reference: A Pocket Guide to the Language, APIs, and Library. 4 Ed

Table of Contents....4

About the Author....14

About the Technical Reviewer....15

Introduction....16

Chapter 1: Hello World....18

Choosing an IDE....18

Creating a Project....19

Hello World....20

IntelliSense....21

Chapter 2: Compile and Run....22

Visual Studio Compilation....22

Console Compilation....22

Comments....23

Chapter 3: Variables....25

Data Types....25

Declaration....26

Assignment....26

Integer Types....27

Floating-Point Types....28

Char Type....29

Bool Type....29

Variable Scope....29

Chapter 4: Operators....30

Arithmetic Operators....30

Assignment Operators....31

Increment and Decrement Operators....31

Comparison Operators....32

Logical Operators....32

Bitwise Operators....33

Operator Precedents....33

Chapter 5: Strings....35

String Concatenation....35

Escape Characters....36

String Compare....37

String Members....37

StringBuilder Class....38

Chapter 6: Arrays....39

Array Declaration....39

Array Allocation....39

Array Assignment....40

Array Access....40

Rectangular Arrays....40

Jagged Arrays....41

Chapter 7: Conditionals....42

If Statement....42

Switch Statement....43

Goto Statement....44

Switch Expression....45

Ternary Operator....45

Chapter 8: Loops....46

While Loop....46

Do-While Loop....46

For Loop....47

Foreach Loop....48

Break and Continue....48

Chapter 9: Methods....49

Defining Methods....49

Calling Methods....50

Method Parameters....50

Params Keyword....51

Method Overloading....51

Optional Parameters....52

Named Arguments....53

Return Statement....53

Value and Reference Types....54

Pass by Value....55

Pass by Reference....55

Ref Keyword....56

Out Keyword....57

Local Methods....58

Chapter 10: Class....60

Object Creation....60

Accessing Object Members....61

Constructor....62

This Keyword....63

Constructor Overloading....63

Constructor Chaining....64

Initial Field Values....64

Default Constructor....65

Object Initializers....65

Partial Class....66

Garbage Collector....67

Finalizer....67

Null and Nullable Types....68

Nullable Value Types....70

Null-Coalescing Operator....70

Null-Conditional Operator....71

Null-Forgiving Operator....72

Default Values....72

Type Inference....73

Anonymous Types....73

Chapter 11: Inheritance....75

Object Class....75

Downcast and Upcast....76

Boxing....77

Unboxing....77

The is and as Keywords....77

Pattern Matching....78

Chapter 12: Redefining Members....81

Hiding Members....81

Overriding Members....82

Hiding and Overriding....82

Sealed Keyword....83

Base Keyword....83

Chapter 13: Access Levels....86

Private Access....86

Protected Access....87

Internal Access....88

Protected Internal Access....89

Private Protected Access....89

Public Access....90

Top-Level Access Levels....91

Inner Classes....91

Access Level Guideline....92

Chapter 14: Static....93

Accessing Static Members....94

Static Methods....94

Static Fields....95

Static Classes....95

Static Constructor....96

Static Local Functions....96

Extension Methods....97

Chapter 15: Properties....99

Property Advantages....100

Read-Only and Write-Only Properties....102

Property Access Levels....102

Auto-implemented Properties....103

Chapter 16: Indexers....105

Indexer Parameters....106

Indexer Overloading....107

Ranges and Indices....108

Chapter 17: Interfaces....109

Interface Signatures....109

Interface Example....110

Functionality Interface....111

Class Interface....111

Default Implementations....112

Chapter 18: Abstract....114

Abstract Members....114

Abstract Example....115

Abstract Classes and Interfaces....116

Chapter 19: Namespaces....118

Nested Namespaces....118

Namespace Access....119

File-Scoped Namespaces....120

Using Directive....120

Top-Level Statements....122

Chapter 20: Enum....124

Enum Example....124

Enum Constant Values....125

Enum Constant Type....125

Enum Access Levels and Scope....126

Enum Methods....126

Chapter 21: Exception Handling....127

Try-Catch Statement....127

Catch Block....128

Exception Filters....129

Finally Block....130

The using Statement....132

Throwing Exceptions....132

Chapter 22: Operator Overloading....135

Operator Overloading Example....135

Binary Operator Overloading....136

Unary Operator Overloading....136

Return Types and Parameters....137

Overloadable Operators....137

True and False Operator Overloading....138

Chapter 23: Custom Conversions....140

Implicit Conversion Methods....140

Explicit Conversion Methods....141

Chapter 24: Struct....142

Struct Variable....142

Struct Constructors....143

Struct Field Initializers....144

Struct Inheritance....144

Struct Guideline....145

Chapter 25: Record....146

Record Behavior....147

Record Structs....149

Record Guidelines....150

Chapter 26: Preprocessors....151

Preprocessor Syntax....152

Conditional Compilation Symbols....152

Conditional Compilation....152

Diagnostic Directives....153

Line Directive....154

Region Directives....154

Chapter 27: Delegates....155

Anonymous Methods....156

Lambda Expressions....156

Expression Body Members....158

Type Inference....159

Capturing Outer Variables....160

Multicast Delegates....161

Delegate Signature....162

Delegates As Parameters....163

Chapter 28: Events....165

Publisher....165

Event Keyword....166

Event Caller....166

Raising Events....167

Subscriber....168

Subscribing to Events....169

Chapter 29: Generics....170

Generic Methods....170

Calling Generic Methods....171

Generic Type Parameters....172

Default Value....172

Generic Classes....173

Generic Class Inheritance....174

Generic Interfaces....175

Generic Delegates....176

Generic Events....176

Generics and Object....177

Constraints....177

Multiple Constraints....178

Why Use Constraints....179

Chapter 30: Constants....181

Local Constants....181

Constant Fields....182

Readonly....182

In Parameters....184

Constant Guidelines....185

Chapter 31: Asynchronous Methods....186

The Async and Await Keywords....186

Async Return Types....187

Custom Async Methods....188

Extended Return Types....189

Async Streams....190

Index....192

Discover what’s new in C# and .NET for Windows programming. This book is a condensed code and syntax reference to the C# programming language, updated with the latest features of version 10 for .NET 6.You’ll review the essential C# 10 and earlier syntax, not previously covered, in a well-organized format that can be used as a handy reference. Specifically, unions, generic attributes, CallerArgumentExpression, params span, Records, Init only setters, Top-level statements, Pattern matching enhancements, Native sized integers, Function pointers and more.You’ll find a concise reference to the C# language syntax: short, simple, and focused code examples; a well laid out table of contents; and a comprehensive index allowing easy review. You won’t find any technical jargon, bloated samples, drawn-out history lessons, or witty stories. What you will find is a language reference that is to the point and highly accessible.The book is a must-have for any C# programmer.

What You Will Learn 

• Employ nullable reference types
• Work with ranges and indices
• Apply recursive patterns to your applications
• Use switch expressions

Who This Book Is For

 Those with some experience in programming, looking for a quick, handy reference. Some C# or .NET recommended but not necessary.