book

Windows Presentation Foundation 4.5 Cookbook

by Pavel Yosifovich

September 2012

Intermediate to advanced

464 pages

10h 55m

English

Packt Publishing

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What this book covers
Downloading the example codeErrataPiracyQuestions
IntroductionXAMLXAML and compilationDependency properties
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...There's more...Property value inheritanceWhy "dependency"?Dependency property levels
Getting readyHow to do it...How it works...There's more...Why an attached property?Does the declaring type "own" the property?See also
Getting readyHow to do it...How it works...There's more...Reusing existing attached propertiesSee also
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...There's more...Don't go overboard
Getting readyHow to do it...How it works...There's more...Stopping bubbling or tunnelingAttached events
Introduction
Getting readyHow to do it...How it works...There's more...Adding or deleting resources dynamicallyModifying resourcesResources that use other resourcesNon-shared resourcesOther locations for resources
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...There's more...Embedded Resource
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...There's more...Duplicated keys
IntroductionThe layout processCoordinates systems in WPF
Getting readyHow to do it...How it works...There's more...Shared row/column sizePlacement in the same cellThe power of the GridAdding rows/columns dynamicallyThe UniformGrid
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...
Getting readyHow to do it...How it works...There's more...Canvas has no backgroundCanvas is not limited to its bounds
Getting readyHow to do it...How it works...
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...There's more...Built-in drag-and-dropDrag-and-drop to other applications
Introduction
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...There's more...Headered content controlsSee also
Getting readyHow to do it...How it works...There's more...See also
Getting readyHow to do it...How it works...There's more...Deeper tooltip customizationRealistic tooltips
Getting readyHow to do it…How it works...There's more...
Getting readyHow to do it…How it works...There's more...Other MenuItem properties and events
Getting readyHow to do it…How it works...There's more...
Getting readyHow to do it…How it works...
Getting readyHow to do it…How it works...There's more...Keyboard focus versus logical focus
Introduction
Getting readyHow to do it...How it works...There's more...Selecting the startup window dynamicallyAccessing command line arguments
Getting readyHow to do it...How it works...There's more...Modeless dialogs
Getting readyHow to do it...How it works...There's more...What about colors and fonts?The Windows API Code Pack
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...There's more...What about reusability?
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...There's more...
Introduction
Getting readyHow to do it...How it works...There's more...Binding modeUpdate source triggerUpdating the source or target manually
Getting readyHow to do it...How it works...There's more...When bindings failOther ways of getting a source binding objectImplementing INotifyPropertyChangedImplementing SetProperty with Visual Studio 2012 and C# 5.0
Getting readyHow to do it...How it works...There's more...Synchronizing selected itemsData binding and the Items property are mutually exclusiveWhat about "real" data?
Getting readyHow to do it...How it works...There's more...Data type based data templatesData template selectors
Getting readyHow to do it...How it works...There's more...Using converters for debuggingFormatting stringsCustomizing with data triggers
Getting readyHow to do it...How it works...There's more...A simpler selected item binding
Getting readyHow to do it...How it works...There's more...More features of ICollectionViewLive shaping
Getting readyHow to do it...How it works...There's more...Grouping by a non-propertySee also
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...There's more...Editing with a template-based columnSelecting, resizing, and sortingOther customization options
Getting readyHow to do it...How it works...There's more...Custom validation rulesCustom error templateUsing data annotations
Introduction
Getting readyHow to do it...How it works...There's more...Built-in implementationsCommand sourcesAlternative ICommand implementations
Getting readyHow to do it...How it works...There's more...Implementing ICommandBlendability
Getting readyHow to do it...How it works...There's more...Non-ICommandSource elements and other eventsWhat about Prism?
Getting readyHow to do it...How it works...There's more...MVVM implementations
Getting readyHow to do it...How it works...
Introduction
Getting readyHow to do it...How it works...There's more...Style inheritanceOther places to set styles
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...There's more...Trigger limitationsWhen to use triggersOther locations of triggersTrigger prioritiesSee also
Getting readyHow to do it...How it works...
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...There's more...Custom behaviors
Getting readyHow to do it...How it works...There's more...What about the control's properties?Combining a control template with a styleExtending a template with attached propertiesCan we replace just part of a template?What about the Visual State Manager?
Getting readyHow to do it...How it works...
Getting readyHow to do it...How it works...There's more...
Introduction
Getting readyHow to do it...How it works...There's more...GeometriesBuilt-in shapesShapes versus geometries
Getting readyHow to do it...How it works...There's more...Other uses for transforms
Getting readyHow to do it...How it works...There's more...How about higher-level access to WriteableBitmap?See also
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...There's more...Alternative way to specify the animation propertyMore on storyboardsAnimations with Expression BlendShould I always use animations?
Getting readyHow to do it...How it works...There's more...Animation performance
Getting readyHow to do it...How it works...
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...There's more...Using the built-in effectsOther shader typesWhat about the BitmapEffect class and its derivatives?
Introduction
Getting readyHow to do it...How it works...There's more...Optimizing convertersAdding a tunneling event
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...There's more...Other things to set in codeWhat is that Generic.xaml?Refactoring of Generic.xaml
Getting readyHow to do it...How it works...
Getting readyHow to do it...How it works...There's more...Where are custom panels used?
Getting readyHow to do it...How it works...There's more...Dependency property ownershipMore DrawingContext
Introduction
Getting readyHow to do it...How it works...There's more...Dispatcher alternativeDispatcher enhancements in WPF 4.5More DispatcherWhat about data binding?
Getting readyHow to do it...How it works...There's more...Never cancel by aborting a thread
Getting readyHow to do it...How it works...There's more...Did we really have to pass the argument to RunWorkerAsync?What about the Task Parallel Library?
Getting readyHow to do it...How it works...There's more...What about Parallel.For?
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...There's more...What about non-CPU bound operations?More async

Content preview from Windows Presentation Foundation 4.5 Cookbook

Adding cancelation support

Long running operations are typically performed on a different thread, which keeps the UI responsive, but that may not be enough. Applications may want to provide a way to cancel a long-running operation. Prior to .NET 4, developers used various ways to orchestrate cancelations. Starting from .NET 4 there is a standard way to convey cancelation requests.

In this recipe, we'll see how to use this cancelation mechanism.

Getting ready

Open the CH11.AsyncCalc project. We'll enhance it with cancelation support.

How to do it...

We'll add the option to cancel the prime calculation operation.

Open MainWindow.xaml. Add another button to the second StackPanel with the following markup:
```
<Button Content="Cancel" Padding="4" Margin="10,0,0,0" ...
```