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An Introduction to Styles and Templates in Windows Presentation Foundation (WPF)

An Introduction to Styles and Templates in Windows Presentation Foundation (WPF). Adam Calderon – C# MVP Principal Engineer Interknowlogy. What We Will Cover. What Styles are and how to use them How Triggers can be used to replace common UI behavior

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An Introduction to Styles and Templates in Windows Presentation Foundation (WPF)

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  1. An Introduction to Styles and Templates in Windows Presentation Foundation (WPF) Adam Calderon – C# MVP Principal Engineer Interknowlogy

  2. What We Will Cover • What Styles are and how to use them • How Triggers can be used to replace common UI behavior • How Templates can be used to skin controls • How all of this comes together

  3. Session Prerequisites • General Understanding of XML and XAML • Basic knowledge of Microsoft® Windows® Presentation Foundation (WPF) • Basic knowledge of WPF Resources Level 200

  4. Agenda • Styles • Triggers • Templates • Adding Style to an existing application

  5. StylesOverview of Styles • What are styles? • Problems they address • Elements that support styles

  6. StylesStyle Class Properties • Key • TargetType • Setters • Property • Event • Resources • Triggers

  7. Code Example of a Style <Style x:Key="Style1"> <Setter Property="Control.Background" Value="Yellow"/> </Style> <Label Content="Yellow Background" Style="{StaticResource Style1}" /> <Style TargetType="{x:Type TextBlock}"> <Setter Property="FontFamily" Value="Segoe Black" /> <Setter Property="HorizontalAlignment" Value="Center" /> <Setter Property="FontSize" Value="12pt" /> <Setter Property="Foreground" Value="#777777" /> </Style> <TextBlock>Some Text</TextBlock>

  8. StylesExtending Styles • Order of Precedence • BasedOn Property • Style-based • Element-based

  9. Demonstration One Styles in Action

  10. Agenda • Styles • Triggers • Templates • Adding Style to an existing application

  11. TriggersOverview of Triggers • Sets properties in response to end-user actions • No code solution to code-based remedies of today

  12. TriggersBasics of Triggers • Property set must be a dependency property • Properties reset when trigger dependent property changes back • Supports single trigger entries and multiple trigger entries (composite trigger) • Supports triggers that are dependent upon data binding and not just standard property binding

  13. Demonstration Two Triggers in Action

  14. Agenda • Styles • Triggers • Templates • Adding Style to an existing application

  15. TemplatesOverview of Templates • Defines visual appearance of controls • Out-of-box controls get their visual appearance from Templates • Brings together styles and triggers

  16. TemplatesBasics of Templates • Three types of templates: • ControlTemplate • ItemsPanelTemplate • DataTemplate • TemplateBinding links template and control properties • ContentPresenter can be used to display controls content

  17. Demonstration Three Templates in Action

  18. Agenda • Styles • Triggers • Templates • Adding Style to an existing application

  19. Adding Style to an ApplicationSteps • Use Style Setters to change the appearance of the text blocks • Use Control Templates to redefine the visual tree of a control • Use Data Templates to determine how the data appears • Use Triggers to create dynamic user interface (UI)

  20. Demonstration Four Transforming an Existing Application

  21. Session Summary • Styles are powerful and flexible • Triggers eliminate user interaction-based UI coding • Controls are more about behavior • Control Templates modify visual aspects of controls

  22. For More Information • MSDN® Links Microsoft Windows® Vista™ development center: http://msdn.microsoft.com/windowsvista/ Microsoft .NET Framework 3.0 for developers: http://msdn.microsoft.com/winfx/ Windows Presentation Foundation code-named "Avalon:” http://forums.microsoft.com/MSDN/ShowForum.aspx?ForumID=119&SiteID=1 • Other Links Microsoft .NET Framework: http://www.netfx3.com/

  23. Additional Resources Applications = Code + Markup By Charles Petzold, Microsoft Press®

  24. Adam Calderon • More info on InterKnowlogy:www.InterKnowlogy.com • Contact Information E-mail: adamc@InterKnowlogy.com Phone: 760-930-0075 x274 Blog: http://blogs.InterKnowlogy.com/AdamCalderon • About Adam Calderon • Microsoft MVP – C# • Microsoft UI Server Frameworks Advisory Council • Developer / Author / Speaker

  25. Questions and Answers • Submit text questions using the “Ask” button. • Don’t forget to fill out the survey. • For upcoming and previously live webcasts: www.microsoft.com/webcasts • Got webcast content ideas? Contact us at: http://go.microsoft.com/fwlink/?LinkId=41781 • Today's webcast was presented using Microsoft® Office Live Meeting. Get a free 14-day trial by visiting: www.microsoft.com/presentlive

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