ASP.NET 4.0入门指南：构建Web网站基础

asp.net4.0

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"asp.net4.0" ASP.NET 4.0是微软开发的一款用于构建Web应用程序的框架，它是.NET Framework 4的一部分。该版本在2010年发布，为开发者提供了许多增强的功能和改进，旨在提高开发效率、性能以及与现有系统的集成。在ASP.NET 4.0中，开发人员可以使用C#编程语言进行开发，这本书《 Beginning ASP.NET 4 in C# 2010》由Matthew MacDonald撰写，旨在为初学者提供ASP.NET 4的基础知识。书中涵盖了构建ASP.NET网站的基本概念，帮助读者开始他们的Web开发之旅。主要知识点包括： 1. **改进的页面生命周期管理**：ASP.NET 4.0引入了更精细的页面生命周期控制，允许开发者在更具体的阶段介入，提高了代码的可维护性和性能。 2. **动态数据支持**：新增的动态数据功能使数据库驱动的Web应用程序开发更加简单，提供了自动的数据验证和模板化，减少了编码工作量。 3. **模型绑定**：模型绑定是ASP.NET 4.0中的一个重要特性，它简化了数据访问和业务逻辑之间的交互，使数据操作更加直观和灵活。 4. **路由系统增强**：路由系统在ASP.NET 4.0中得到增强，允许开发者定义更加友好的URL模式，提高了用户体验并增强了搜索引擎优化（SEO）。 5. **母版页和用户控件**：通过母版页和用户控件，开发者可以创建重用的布局和组件，提升了代码复用性和项目结构的整洁性。 6. **配置管理**：ASP.NET 4.0提供了更强大的配置管理工具，允许开发者更轻松地管理和控制应用程序的配置设置。 7. **性能优化**：新版本对内存管理和垃圾回收进行了优化，提升了应用程序的运行效率。 8. **AJAX集成**：ASP.NET 4.0进一步集成了AJAX功能，包括改进的UpdatePanel和新的ScriptManager组件，使得创建异步Web应用更加便捷。 9. **安全性更新**：提供了更好的身份验证和授权机制，如Forms Authentication和角色管理，增强了Web应用的安全性。 10. **开发工具增强**：Visual Studio 2010作为主要的开发环境，提供了更好的ASP.NET 4.0支持，包括更智能的代码编辑器、调试工具和项目模板。本书《 Beginning ASP.NET 4 in C# 2010》详细介绍了这些知识点，通过实例和实践指导帮助读者掌握ASP.NET 4.0的开发技巧，是学习这个框架的宝贵资源。同时，它也提醒读者尊重版权，合法使用书中提到的商标和技术。

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■ CONTENTS

xiv

Applying Style Sheet Rules.................................................................................................................380

Themes ........................................................................................................................383

How Themes Work .............................................................................................................................383

Applying a Simple Theme...................................................................................................................385

Handling Theme Conflicts...................................................................................................................386

Creating Multiple Skins for the Same Control ....................................................................................388

More Advanced Skins.........................................................................................................................389

Master Page Basics .....................................................................................................391

A Simple Master Page and Content Page ...........................................................................................392

How Master Pages and Content Pages Are Connected ......................................................................396

A Master Page with Multiple Content Regions ...................................................................................398

Default Content...................................................................................................................................401

Master Pages and Relative Paths .......................................................................................................402

Advanced Master Pages ..............................................................................................403

Style-Based Layouts...........................................................................................................................403

Code in a Master Page........................................................................................................................408

Interacting with a Master Page Programmatically .............................................................................409

The Last Word..............................................................................................................410

■ Chapter 13: Website Navigation.......................................................................411

Site Maps.....................................................................................................................411

Defining a Site Map ............................................................................................................................412

Seeing a Simple Site Map in Action....................................................................................................416

Binding an Ordinary Page to a Site Map.............................................................................................416

Binding a Master Page to a Site Map .................................................................................................418

Binding Portions of a Site Map ...........................................................................................................420

The SiteMap Class ..............................................................................................................................425

URL Mapping and Routing ...........................................................................................427

URL Mapping ......................................................................................................................................428

URL Routing........................................................................................................................................428

■ CONTENTS

The SiteMapPath Control .............................................................................................430

Customizing the SiteMapPath ............................................................................................................431

Using SiteMapPath Styles and Templates..........................................................................................432

Adding Custom Site Map Information.................................................................................................434

The TreeView Control...................................................................................................435

TreeView Properties ...........................................................................................................................436

TreeView Styles ..................................................................................................................................438

The Menu Control ........................................................................................................442

Menu Styles........................................................................................................................................444

Menu Templates.................................................................................................................................445

The Last Word..............................................................................................................448

Part 4: Working with Data ....................................................................................449

■ Chapter 14: ADO.NET Fundamentals ................................................................451

Understanding Databases............................................................................................451

Configuring Your Database ..........................................................................................453

SQL Server Express ............................................................................................................................453

Browsing and Modifying Databases in Visual Studio .........................................................................454

The sqlcmd Command-Line Tool........................................................................................................457

SQL Basics...................................................................................................................458

Running Queries in Visual Studio .......................................................................................................459

The Select Statement .........................................................................................................................461

The SQL Update Statement.................................................................................................................463

The SQL Insert Statement...................................................................................................................465

The SQL Delete Statement..................................................................................................................465

The Data Provider Model .............................................................................................466

Direct Data Access ......................................................................................................467

Creating a Connection ........................................................................................................................469

The Select Command .........................................................................................................................475

The DataReader..................................................................................................................................476

■ CONTENTS

xvi

Putting It All Together.........................................................................................................................476

Updating Data.....................................................................................................................................481

Disconnected Data Access ..........................................................................................491

Selecting Disconnected Data..............................................................................................................492

Selecting Multiple Tables ...................................................................................................................494

Defining Relationships........................................................................................................................495

The Last Word..............................................................................................................498

■ Chapter 15: Data Binding .................................................................................499

Introducing Data Binding .............................................................................................499

Types of ASP.NET Data Binding..........................................................................................................500

How Data Binding Works....................................................................................................................500

Single-Value Data Binding ...........................................................................................500

A Simple Data Binding Example .........................................................................................................501

Simple Data Binding with Properties..................................................................................................504

Problems with Single-Value Data Binding..........................................................................................505

Using Code Instead of Simple Data Binding .......................................................................................506

Repeated-Value Data Binding......................................................................................506

Data Binding with Simple List Controls ..............................................................................................507

A Simple List Binding Example...........................................................................................................508

Strongly Typed Collections .................................................................................................................509

Multiple Binding..................................................................................................................................510

Data Binding with a Dictionary Collection ..........................................................................................512

Using the DataValueField Property .....................................................................................................513

Data Binding with ADO.NET ................................................................................................................514

Creating a Record Editor.....................................................................................................................516

Data Source Controls...................................................................................................521

The Page Life Cycle with Data Binding...............................................................................................523

The SqlDataSource .............................................................................................................................523

Selecting Records...............................................................................................................................525

Parameterized Commands .................................................................................................................527

■ CONTENTS

xvii

Handling Errors...................................................................................................................................532

Updating Records ...............................................................................................................................533

The Last Word..............................................................................................................537

■ Chapter 16: The Data Controls .........................................................................539

The GridView................................................................................................................539

Automatically Generating Columns ....................................................................................................540

Defining Columns ...............................................................................................................................542

Formatting the GridView..............................................................................................546

Formatting Fields................................................................................................................................546

Using Styles........................................................................................................................................547

Formatting-Specific Values ................................................................................................................550

Selecting a GridView Row............................................................................................552

Adding a Select Button .......................................................................................................................553

Using Selection to Create Master-Details Pages ................................................................................554

Editing with the GridView ............................................................................................556

Sorting and Paging the GridView.................................................................................559

Sorting ................................................................................................................................................559

Paging.................................................................................................................................................561

Using GridView Templates...........................................................................................563

Using Multiple Templates ...................................................................................................................565

Editing Templates in Visual Studio .....................................................................................................566

Handling Events in a Template ...........................................................................................................567

Editing with a Template......................................................................................................................568

The DetailsView and FormView ...................................................................................573

The DetailsView ..................................................................................................................................573

The FormView.....................................................................................................................................575

The Last Word..............................................................................................................578

■ Chapter 17: Files and Streams.........................................................................579

Files and Web Applications..........................................................................................579

■ CONTENTS

xviii

File System Information...............................................................................................580

The Path Class....................................................................................................................................581

The Directory and File Classes ...........................................................................................................582

The DirectoryInfo and FileInfo Classes ...............................................................................................587

The DriveInfo Class.............................................................................................................................589

A Sample File Browser .......................................................................................................................590

Reading and Writing with Streams..............................................................................594

Text Files ............................................................................................................................................594

Binary Files.........................................................................................................................................596

Shortcuts for Reading and Writing Files.............................................................................................597

A Simple Guest Book ..........................................................................................................................598

Allowing File Uploads ..................................................................................................604

The FileUpload Control .......................................................................................................................604

The Last Word..............................................................................................................607

■ Chapter 18: XML...............................................................................................609

XML Explained .............................................................................................................609

Improving the List with XML...............................................................................................................611

XML Basics .........................................................................................................................................612

Attributes............................................................................................................................................613

Comments ..........................................................................................................................................614

The XML Classes..........................................................................................................615

The XML TextWriter ............................................................................................................................615

The XML Text Reader..........................................................................................................................618

Working with XML Documents in Memory .........................................................................................623

Reading an XML Document ................................................................................................................628

Searching an XML Document .............................................................................................................631

XML Validation.............................................................................................................632

XML Namespaces ...............................................................................................................................632

XML Schema Definition ......................................................................................................................635

Validating an XML Document..............................................................................................................637

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