C# 2010精通：.NET 4.0版WPF深度指南

2010

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"《Pro WPF in C# 2010: Windows Presentation Foundation in .NET 4.0》是一本由Matthew MacDonald编著的专业书籍，它深入探讨了Windows Presentation Foundation (WPF) 在 Microsoft .NET Framework 4.0环境下的应用。这本书是针对C# 2010版本的高级教程，旨在帮助读者理解和掌握WPF技术在实际开发中的关键概念和实践。本书的内容覆盖了WPF的基础知识，如用户界面设计、数据绑定、XAML语言、控件与布局、动画和多媒体处理等方面，同时还特别关注了.NET 4.0所带来的新特性和改进。作为一本专业指南，它提供了大量的代码示例和实战项目，帮助读者通过实践提升技能，并理解如何利用WPF构建高效、可维护和高性能的应用程序。版权方面，所有内容受到严格的保护，未经版权所有者Matthew MacDonald和出版社事先书面许可，禁止任何形式的复制或传播，包括但不限于复印、录音或通过任何信息存储和检索系统。本书的纸质版和电子版的ISBN分别为978-1-4302-7205-2和978-1-4302-7204-5，表明其出版和印刷都在美国完成。作者、编辑团队以及技术评审员的名单也出现在了书的前言部分，显示了本书背后的专业实力。从主编Ewan Buckingham到技术专家FabioClaudioFerracchiati，他们的专业知识确保了内容的质量和权威性。《Pro WPF in C# 2010》是一本针对WPF开发者的实用教材，适合那些希望在C#环境中深入学习和应用WPF技术的软件开发者，无论是初学者还是经验丰富的开发者，都能从中受益匪浅。"

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CONTENTS

Organizing Template Resources ................................................................................................. 521

Refactoring the Button Control Template ................................................................................ 522

Applying Templates with Styles .............................................................................................. 524

Applying Templates Automatically .......................................................................................... 527

User-Selected Skins ............................................................................................................... 528

Building More Complex Templates ............................................................................................. 530

Nested Templates .................................................................................................................. 531

Modifying the Scroll Bar ......................................................................................................... 533

The Control Template Examples ............................................................................................. 538

Visual States .............................................................................................................................. 540

The Last Word ............................................................................................................................ 541

■Chapter 18: Custom Elements ....................................................................................................... 543

Understanding Custom Elements in WPF .................................................................................... 544

Building a Basic User Control ..................................................................................................... 547

Defining Dependency Properties ............................................................................................ 548

Defining Routed Events .......................................................................................................... 551

Adding Markup ...................................................................................................................... 552

Using the Control ................................................................................................................... 554

Command Support ................................................................................................................. 555

A Closer Look at User Controls ............................................................................................... 558

Creating a Lookless Control ........................................................................................................ 559

Refactoring the Color Picker Code .......................................................................................... 560

Refactoring the Color Picker Markup ...................................................................................... 560

Streamlining the Control Template ......................................................................................... 563

Theme-Specific Styles and the Default Style .......................................................................... 566

Supporting Visual States ............................................................................................................ 568

Starting the FlipPanel Class .................................................................................................... 569

Choosing Parts and States ..................................................................................................... 572

The Default Control Template ................................................................................................. 573

Using the FlipPanel ................................................................................................................ 580

Using a Different Control Template ......................................................................................... 581

Custom Panels ........................................................................................................................... 582

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CONTENTS

xvi

The Two-Step Layout Process ................................................................................................ 583

The Canvas Clone .................................................................................................................. 586

A Better Wrapping Panel ........................................................................................................ 587

Custom-Drawn Elements ........................................................................................................... 590

The OnRender() Method ......................................................................................................... 591

Evaluating Custom Drawing ................................................................................................... 592

A Custom-Drawn Element ...................................................................................................... 593

A Custom Decorator ............................................................................................................... 595

The Last Word ............................................................................................................................ 597

■Chapter 19: Data Binding ............................................................................................................... 599

Binding to a Database with Custom Objects ............................................................................... 599

Building a Data Access Component ........................................................................................ 600

Building a Data Object ............................................................................................................ 603

Displaying the Bound Object .................................................................................................. 604

Updating the Database ........................................................................................................... 606

Change Notification ................................................................................................................ 607

Binding to a Collection of Objects ............................................................................................... 609

Displaying and Editing Collection Items .................................................................................. 610

Inserting and Removing Collection Items ................................................................................ 614

Binding to the ADO.NET Objects ............................................................................................. 615

Binding to a LINQ Expression ................................................................................................. 616

Improving Performance in Large Lists ........................................................................................ 619

Virtualization .......................................................................................................................... 619

Item Container Recycling ....................................................................................................... 621

Deferred Scrolling .................................................................................................................. 621

Validation ................................................................................................................................... 621

Validation in the Data Object .................................................................................................. 622

Custom Validation Rules ......................................................................................................... 626

Reacting to Validation Errors .................................................................................................. 628

Getting a List of Errors ........................................................................................................... 629

Showing a Different Error Indicator ......................................................................................... 630

Validating Multiple Values ...................................................................................................... 633

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CONTENTS

xvii

Data Providers ........................................................................................................................... 636

The ObjectDataProvider .......................................................................................................... 637

The XmlDataProvider ............................................................................................................. 640

The Last Word ............................................................................................................................ 642

■Chapter 20: Formatting Bound Data .............................................................................................. 643

Data Binding Redux .................................................................................................................... 643

Data Conversion ......................................................................................................................... 645

The StringFormat Property ..................................................................................................... 645

Introducing Value Converters.................................................................................................. 647

Formatting Strings with a Value Converter .............................................................................. 648

Creating Objects with a Value Converter ................................................................................. 650

Applying Conditional Formatting ............................................................................................. 653

Evaluating Multiple Properties ................................................................................................ 654

List Controls ............................................................................................................................... 656

List Styles .................................................................................................................................. 658

The ItemContainerStyle .......................................................................................................... 659

A ListBox with Check Boxes or Radio Buttons ......................................................................... 660

Alternating Item Style ............................................................................................................. 663

Style Selectors ....................................................................................................................... 665

Data Templates .......................................................................................................................... 668

Separating and Reusing Templates ........................................................................................ 671

More Advanced Templates ..................................................................................................... 672

Varying Templates ................................................................................................................. 675

Template Selectors ................................................................................................................ 676

Templates and Selection ........................................................................................................ 679

Changing Item Layout ............................................................................................................ 684

The ComboBox ........................................................................................................................... 686

The Last Word ............................................................................................................................ 689

■Chapter 21: Data Views .................................................................................................................. 691

The View Object ......................................................................................................................... 691

Retrieving a View Object ........................................................................................................ 692

Navigating with a View ........................................................................................................... 692

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CONTENTS

xviii

Creating a View Declaratively ................................................................................................. 695

Filtering, Sorting, and Grouping .................................................................................................. 697

Filtering Collections ................................................................................................................ 697

Filtering the DataTable ........................................................................................................... 701

Sorting ................................................................................................................................... 702

Grouping ................................................................................................................................ 703

The Last Word ............................................................................................................................ 707

■Chapter 22: Lists, Grids, and Trees ................................................................................................ 709

The ListView .............................................................................................................................. 710

Creating Columns with the GridView ...................................................................................... 711

Creating a Custom View ......................................................................................................... 715

The TreeView ............................................................................................................................. 724

A Data-Bound TreeView ......................................................................................................... 724

Binding a DataSet to a TreeView ............................................................................................ 728

Just-in-Time Node Creation ................................................................................................... 729

The DataGrid .............................................................................................................................. 732

Resizing and Rearranging Columns ........................................................................................ 734

Defining Columns ................................................................................................................... 735

Formatting and Styling Columns ............................................................................................. 740

Formatting Rows .................................................................................................................... 742

Row Details ............................................................................................................................ 744

Freezing Columns .................................................................................................................. 745

Selection ................................................................................................................................ 745

Sorting ................................................................................................................................... 746

DataGrid Editing ..................................................................................................................... 746

The Last Word ............................................................................................................................ 749

■Chapter 23: Windows ..................................................................................................................... 751

The Window Class ...................................................................................................................... 751

Showing a Window ................................................................................................................ 754

Positioning a Window ............................................................................................................. 755

Saving and Restoring Window Location .................................................................................. 756

Window Interaction .................................................................................................................... 758

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CONTENTS

Window Ownership ................................................................................................................ 760

The Dialog Model ................................................................................................................... 761

Common Dialog Boxes ........................................................................................................... 762

Nonrectangular Windows ........................................................................................................... 763

A Simple Shaped Window ...................................................................................................... 763

A Transparent Window with Shaped Content .......................................................................... 766

Moving Shaped Windows ....................................................................................................... 768

Resizing Shaped Windows ..................................................................................................... 769

Putting It All Together: A Custom Control Template for Windows ............................................ 770

The Aero Glass Effect ................................................................................................................. 774

Programming the Windows 7 Taskbar ........................................................................................ 779

Using Jump Lists ................................................................................................................... 779

Changing the Taskbar Icon and Preview ................................................................................. 784

The Last Word ............................................................................................................................ 790

■Chapter 24: Pages and Navigation ................................................................................................. 791

Understanding Page-Based Navigation ....................................................................................... 791

Page-Based Interfaces ............................................................................................................... 792

A Simple Page-Based Application with NavigationWindow ...................................................... 793

The Page Class ...................................................................................................................... 795

Hyperlinks .............................................................................................................................. 796

Hosting Pages in a Frame ...................................................................................................... 799

Hosting Pages in Another Page............................................................................................... 800

Hosting Pages in a Web Browser ............................................................................................ 802

The Page History ........................................................................................................................ 803

A Closer Look at URIs in WPF ................................................................................................. 803

Navigation History .................................................................................................................. 804

Maintaining Custom Properties............................................................................................... 805

The Navigation Service ............................................................................................................... 806

Programmatic Navigation ....................................................................................................... 806

Navigation Events .................................................................................................................. 808

Managing the Journal ............................................................................................................ 809

Adding Custom Items to the Journal ....................................................................................... 811

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