专家之声：Pro C# .Net 4.5与.NET 4.5框架

C#.Net4.5

5星 · 超过95%的资源需积分: 49 9 浏览量更新于2024-07-26 1 收藏 22.81MB PDF 举报

"ProC#.Net4.5" 是一本由Andrew Troelsen编写的关于C#编程语言和.NET 4.5框架的专业书籍。本书由Oracle Application Express领域内的十四位专家贡献了他们的实战经验和见解。正文：《Pro C# .Net 4.5》第六版是针对C#编程和.NET Framework 4.5的深度指南，作者Andrew Troelsen是一位在.NET领域的权威专家。这本书旨在为开发者提供全面、深入的C#和.NET 4.5框架知识，帮助他们充分利用这一强大的开发平台。书中涵盖了C#语言的关键特性，包括但不限于： 1. **语言基础**：介绍C#的基本语法，如变量、数据类型、控制流结构、函数、类和对象等。 2. **面向对象编程**：深入讲解封装、继承、多态等面向对象设计原则，以及接口和抽象类的应用。 3. **泛型**：解释如何使用泛型来创建类型安全且可重用的代码，以提高程序的效率和灵活性。 4. **LINQ（Language Integrated Query）**：介绍如何在C#中使用LINQ进行数据查询，包括对数据库、集合和其他数据源的查询。 5. **异步编程**：.NET 4.5引入了异步编程模型，如`async`和`await`关键字，使得开发者可以更轻松地编写非阻塞的异步代码，提高应用程序性能。 6. **Lambda表达式**：深入探讨lambda表达式的使用，以及它们在LINQ和事件处理中的作用。 7. **多线程和并发**：讨论如何在.NET 4.5中管理多线程，以及利用并发工具如Task Parallel Library (TPL)进行并行编程。 8. **WPF（Windows Presentation Foundation）**：介绍创建桌面应用程序的UI技术，包括XAML语法、控件、布局和数据绑定。 9. **ASP.NET**：探讨如何使用ASP.NET 4.5构建Web应用程序，包括MVC模式、Web API和SignalR等技术。 10. **Entity Framework**：讲解ORM（对象关系映射）工具Entity Framework的使用，简化数据库操作。 11. **测试驱动开发（TDD）**：介绍如何通过单元测试和集成测试来实践TDD，确保代码质量。 12. **调试与性能优化**：提供调试技巧和性能分析方法，帮助开发者解决运行时问题和提升程序性能。此外，本书还包含了实际项目开发中的最佳实践，以及专家们在Oracle Application Express领域的经验分享，这些实战案例和见解对于提升开发者的专业技能具有重要价值。书中的"Bookmarks"和"Contents at a Glance"功能使读者能够快速定位感兴趣的内容，方便查阅和学习。同时，本书允许对其中的材料进行有限度的复制和使用，如用于个人学习、评论或学术分析，但需遵循版权法规，不得未经授权进行大规模复制或改编。《Pro C# .Net 4.5》是一本全面的C#和.NET 4.5开发指南，适合有志于提升.NET编程技能的开发者，无论是初学者还是经验丰富的专业人士，都能从中获益匪浅。

 CONTENTS

xiv

Overriding System.Object.ToString() .................................................................................................... 247

Overriding System.Object.Equals() ....................................................................................................... 247

Overriding System.Object.GetHashCode() ............................................................................................ 248

Testing Your Modified Person Class ..................................................................................................... 249

The Static Members of System.Object ................................................................................................. 250

Summary .......................................................................................................................250

 Chapter 7: Understanding Structured Exception Handling .................................253

Ode to Errors, Bugs, and Exceptions .............................................................................253

The Role of .NET Exception Handling.............................................................................254

The Building Blocks of .NET Exception Handling.................................................................................. 255

The System.Exception Base Class........................................................................................................ 255

The Simplest Possible Example.....................................................................................257

Throwing a General Exception.............................................................................................................. 259

Catching Exceptions ............................................................................................................................. 260

Configuring the State of an Exception ...........................................................................261

The TargetSite Property........................................................................................................................ 261

The StackTrace Property ...................................................................................................................... 262

The HelpLink Property .......................................................................................................................... 263

The Data Property................................................................................................................................. 264

System-Level Exceptions (System.SystemException) ...................................................266

Application-Level Exceptions (System.ApplicationException) .......................................266

Building Custom Exceptions, Take One ................................................................................................ 267

Building Custom Exceptions, Take Two................................................................................................ 269

Building Custom Exceptions, Take Three ............................................................................................. 269

Processing Multiple Exceptions.....................................................................................271

General catch Statements .................................................................................................................... 274

Rethrowing Exceptions......................................................................................................................... 274

 CONTENTS

Inner Exceptions................................................................................................................................... 275

The finally Block ................................................................................................................................... 276

Who Is Throwing What?.................................................................................................277

The Result of Unhandled Exceptions .............................................................................277

Debugging Unhandled Exceptions Using Visual Studio .................................................278

Summary .......................................................................................................................280

 Chapter 8: Working with Interfaces....................................................................281

Understanding Interface Types......................................................................................281

Interface Types vs. Abstract Base Classes........................................................................................... 282

Defining Custom Interfaces ...........................................................................................284

Implementing an Interface.............................................................................................286

Invoking Interface Members at the Object Level ...........................................................288

Obtaining Interface References: The as Keyword ................................................................................ 289

Obtaining Interface References: The is Keyword ................................................................................. 290

Interfaces As Parameters ..............................................................................................291

Interfaces As Return Values...........................................................................................293

Arrays of Interface Types...............................................................................................294

Implementing Interfaces Using Visual Studio ................................................................295

Explicit Interface Implementation..................................................................................296

Designing Interface Hierarchies ....................................................................................299

Multiple Inheritance with Interface Types ............................................................................................ 300

The IEnumerable and IEnumerator Interfaces ...............................................................302

Building Iterator Methods with the yield Keyword ............................................................................... 305

Building a Named Iterator..................................................................................................................... 306

The ICloneable Interface................................................................................................308

A More Elaborate Cloning Example ...................................................................................................... 310

 CONTENTS

xvi

The IComparable Interface ............................................................................................313

Specifying Multiple Sort Orders with IComparer .................................................................................. 316

Custom Properties and Custom Sort Types .......................................................................................... 317

Summary .......................................................................................................................318

 Part IV: Advanced C# Programming ...................................................................319

 Chapter 9: Collections and Generics...................................................................321

The Motivation for Collection Classes............................................................................321

The System.Collections Namespace .................................................................................................... 323

A Survey of System.Collections.Specialized Namespace..................................................................... 325

The Problems of Nongeneric Collections.......................................................................326

The Issue of Performance..................................................................................................................... 326

The Issue of Type Safety ...................................................................................................................... 330

A First Look at Generic Collections....................................................................................................... 333

The Role of Generic Type Parameters ...........................................................................334

Specifying Type Parameters for Generic Classes/Structures............................................................... 335

Specifying Type Parameters for Generic Members.............................................................................. 336

Specifying Type Parameters for Generic Interfaces ............................................................................. 337

The System.Collections.Generic Namespace ................................................................338

Understanding Collection Initialization Syntax ..................................................................................... 340

Working with the List<T> Class ........................................................................................................... 341

Working with the Stack<T> Class........................................................................................................ 342

Working with the Queue<T> Class....................................................................................................... 343

Working with the SortedSet<T> Class ................................................................................................. 345

The System.Collections.ObjectModel Namespace.........................................................346

Working with ObservableCollection<T>............................................................................................... 347

Creating Custom Generic Methods ................................................................................349

Inference of Type Parameters .............................................................................................................. 351

 CONTENTS

xvii

Creating Custom Generic Structures and Classes .........................................................353

The default Keyword in Generic Code .................................................................................................. 354

Constraining Type Parameters ......................................................................................355

Examples Using the where Keyword .................................................................................................... 356

The Lack of Operator Constraints......................................................................................................... 357

Summary .......................................................................................................................358

 Chapter 10: Delegates, Events, and Lambda Expressions ..................................359

Understanding the .NET Delegate Type .........................................................................359

Defining a Delegate Type in C# ............................................................................................................ 360

The System.MulticastDelegate and System.Delegate Base Classes.................................................... 362

The Simplest Possible Delegate Example......................................................................364

Investigating a Delegate Object............................................................................................................ 365

Sending Object State Notifications Using Delegates .....................................................367

Enabling Multicasting ........................................................................................................................... 370

Removing Targets from a Delegate’s Invocation List ........................................................................... 371

Method Group Conversion Syntax ........................................................................................................ 372

Understanding Generic Delegates .................................................................................374

The Generic Action<> and Func<> Delegates..................................................................................... 375

Understanding C# Events...............................................................................................378

The C# event Keyword.......................................................................................................................... 379

Events Under the Hood ......................................................................................................................... 380

Listening to Incoming Events ............................................................................................................... 381

Simplifying Event Registration Using Visual Studio.............................................................................. 383

Creating Custom Event Arguments....................................................................................................... 384

The Generic EventHandler<T> Delegate .............................................................................................. 386

Understanding C# Anonymous Methods........................................................................387

Accessing Local Variables .................................................................................................................... 389

 CONTENTS

xviii

Understanding Lambda Expressions .............................................................................390

Dissecting a Lambda Expression.......................................................................................................... 393

Processing Arguments Within Multiple Statements ............................................................................. 394

Lambda Expressions with Multiple (or Zero) Parameters..................................................................... 395

Retrofitting the CarEvents Example Using Lambda Expressions.......................................................... 396

Summary .......................................................................................................................397

 Chapter 11: Advanced C# Language Features ....................................................399

Understanding Indexer Methods....................................................................................399

Indexing Data Using String Values........................................................................................................ 401

Overloading Indexer Methods............................................................................................................... 403

Indexers with Multiple Dimensions ...................................................................................................... 403

Indexer Definitions on Interface Types ................................................................................................. 404

Understanding Operator Overloading ............................................................................404

Overloading Binary Operators............................................................................................................... 405

And What of the += and –+ Operators?............................................................................................... 408

Overloading Unary Operators................................................................................................................ 408

Overloading Equality Operators ............................................................................................................ 409

Overloading Comparison Operators...................................................................................................... 410

Final Thoughts Regarding Operator Overloading.................................................................................. 411

Understanding Custom Type Conversions .....................................................................412

Recall: Numerical Conversions............................................................................................................. 412

Recall: Conversions Among Related Class Types................................................................................. 412

Creating Custom Conversion Routines ................................................................................................. 413

Additional Explicit Conversions for the Square Type ............................................................................ 416

Defining Implicit Conversion Routines.................................................................................................. 417

Understanding Extension Methods ................................................................................418

Defining Extension Methods ................................................................................................................. 418

Invoking Extension Methods................................................................................................................. 420

剩余1533页未读，继续阅读

gnimgnot

粉丝: 755
资源: 27

专家之声：Pro C# .Net 4.5与.NET 4.5框架

Pro.C#.5.0.and.the..NET.4.5.Framework,.Andrew.Troelsen

精通asp.net 4.5 第五版随书代码

Pro_CSharp_5.0_and_the_.NET_4.5_Framework_6th_edition

如何查看linux core文件

mount -t proc proc /proc

写一段Linux脚本，要求完成以下功能：自动识别关键字为“java”的进程，获取进程号，并根据相应进程号杀死进程

//JOBNAME JOB ... //STEP1 EXEC PROC=PROC1，在PROC1里又调用STEP EXEC PROC=PROC2，如何替换PROC2里的DD

pROC计算置信区间

remove_proc_entry

最新资源