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Silverlight 5 Essential Training
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Controlling animations


From:

Silverlight 5 Essential Training

with Walt Ritscher

Video: Controlling animations

Once you have created an animation, you might need to exert some control over the animation lifetime. The Storyboard class exposes useful methods like Begin, Pause, and Stop. For this demonstration, I'm using Expression Blend and I've opened a project called Controlling Animations. I'm going to start by looking in a BasicControllingAnimation.xaml file. This first screen shows two ellipses that I would like to move across the screen when I click on the Start button: Pause and Resume. Let me show you my storyboard that I have first.
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  1. 1m 41s
    1. Welcome
      53s
    2. Using the exercise files
      48s
  2. 35m 0s
    1. Overview of Silverlight
      3m 29s
    2. Setting up a developer computer
      2m 46s
    3. Installing the Silverlight Toolkit
      2m 21s
    4. Exploring the toolkit samples
      2m 35s
    5. Using Visual Studio 2010 to create a Silverlight project
      5m 10s
    6. Using Expression Blend to create a Silverlight project
      3m 13s
    7. Getting to know the Visual Studio interface
      8m 15s
    8. Working in the Expression Blend interface
      7m 11s
  3. 29m 46s
    1. Understanding the Visual Studio project structure
      3m 38s
    2. Creating a Silverlight page
      3m 17s
    3. Compiling your first application
      5m 0s
    4. Using other assemblies in an application
      5m 45s
    5. Deploying a Silverlight application
      3m 43s
    6. Understanding the startup process for an application
      3m 13s
    7. Understanding how users get Silverlight on their computers
      5m 10s
  4. 16m 59s
    1. Exploring the relationship between XAML and .NET
      3m 57s
    2. Using C#
      7m 16s
    3. Exploring the code-behind file
      5m 46s
  5. 43m 22s
    1. Working with XAML elements and Property attributes
      4m 56s
    2. Investigating XAML namespaces
      7m 31s
    3. Converting XAML properties with TypeConverters
      5m 1s
    4. Working with Property elements
      4m 24s
    5. Assigning runtime data with XAML markup extensions
      4m 21s
    6. Digging into the dependency property system
      6m 12s
    7. Creating a custom dependency property
      4m 42s
    8. Understanding attached properties
      6m 15s
  6. 9m 35s
    1. Debugging your code
      5m 17s
    2. Special Silverlight debugging techniques
      4m 18s
  7. 36m 0s
    1. Understanding layout
      4m 55s
    2. Using DockPanel and WrapPanel
      4m 2s
    3. Exploring sophisticated layouts with the Grid
      6m 40s
    4. Absolute positioning with the Canvas panel
      5m 20s
    5. Scrolling content with the ScrollViewer
      3m 28s
    6. Adjusting content alignment, margins, and sizing
      5m 6s
    7. Using the TabControl
      2m 17s
    8. Manipulating elements with transforms
      4m 12s
  8. 20m 32s
    1. Painting the user interface (UI) with SolidColorBrush
      6m 7s
    2. Getting colorful with gradient brushes
      3m 15s
    3. Decorating elements with ImageBrush
      4m 56s
    4. Creating effects with VideoBrush
      6m 14s
  9. 25m 42s
    1. Understanding routed events
      3m 12s
    2. Wiring up event handlers in Silverlight
      6m 4s
    3. Understanding event bubbling
      4m 39s
    4. Exploring mouse events
      7m 43s
    5. Exploring keyboard events
      4m 4s
  10. 32m 31s
    1. Displaying text on the screen
      3m 24s
    2. Gathering text input from the user
      5m 30s
    3. Showing complex text with RichTextBox
      6m 7s
    4. Understanding text overflow and text linking
      3m 14s
    5. Searching content with the AutoComplete type-ahead control
      6m 45s
    6. Using and embedding Silverlight fonts
      7m 31s
  11. 26m 47s
    1. Understanding content controls
      5m 7s
    2. Understanding button controls
      6m 16s
    3. Using the BusyIndicator
      4m 40s
    4. Showing tooltips
      4m 34s
    5. Changing content size with ViewBox
      1m 39s
    6. Exploring more controls
      4m 31s
  12. 55m 36s
    1. Connecting elements with binding
      9m 54s
    2. Using business data in a binding
      9m 21s
    3. Listing data with ItemsControls
      6m 39s
    4. Digging into the DataGrid
      8m 28s
    5. Using the DataForm
      3m 49s
    6. Storing data on the client
      7m 10s
    7. Debugging XAML bindings
      5m 41s
    8. Charting data
      4m 34s
  13. 24m 36s
    1. Creating an Out-of-Browser (OOB) application
      6m 16s
    2. Controlling aspects of an OOB application
      2m 49s
    3. Alerting the user with notification windows
      7m 13s
    4. Hosting HTML content in Silverlight applications
      8m 18s
  14. 30m 2s
    1. Exploring Silverlight trust levels
      3m 51s
    2. Creating an elevated trust application
      5m 57s
    3. Reaping the benefits of XAP signing
      6m 5s
    4. Making cross-domain calls
      5m 1s
    5. Getting started with COM Interop using the Speech API
      4m 21s
    6. Using COM Interop to interact with Microsoft Office
      4m 47s
  15. 16m 33s
    1. Showing child windows
      3m 48s
    2. Using a child window as a dialog window
      5m 7s
    3. Creating native windows
      2m 53s
    4. Maximizing a window with full screen mode
      4m 45s
  16. 13m 20s
    1. Dynamically loading UI content with user controls
      4m 46s
    2. Using the Navigation Framework
      8m 34s
  17. 9m 28s
    1. Using resource files
      3m 53s
    2. Using images in an application
      5m 35s
  18. 16m 32s
    1. Playing audio
      4m 27s
    2. Playing sound effects
      5m 4s
    3. Viewing video content with MediaElement
      4m 58s
    4. Changing video playback speed with TrickPlay
      2m 3s
  19. 14m 40s
    1. Capturing video with a web camera
      4m 16s
    2. Working with a microphone
      3m 47s
    3. Creating print output
      6m 37s
  20. 22m 35s
    1. Understanding Silverlight animations
      4m 35s
    2. Creating animations
      7m 52s
    3. Controlling animations
      4m 18s
    4. Simulating physics with animation easings
      5m 50s
  21. 27m 47s
    1. Placing XAML resources within a FrameworkElement
      6m 47s
    2. Centralizing settings in styles
      4m 8s
    3. Creating an alternate control UI with ControlTemplates
      6m 29s
    4. Dressing up your data with DataTemplates
      4m 33s
    5. Explaining the VisualStateManager: a simple way to manage control states
      5m 50s
  22. 10m 55s
    1. Handling global errors in a Silverlight application
      5m 46s
    2. Showing an application loading screen
      5m 9s
  23. 10m 48s
    1. Integrating with XNA
      7m 40s
    2. Exploring data analysis with PivotViewer
      3m 8s
  24. 1m 6s
    1. Goodbye
      1m 6s

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Silverlight 5 Essential Training
8h 51m Beginner Mar 27, 2012

Viewers: in countries Watching now:

Microsoft Silverlight 5 is a rich application framework for creating high-performance, cross-platform desktop and mobile applications. In this course, author Walt Ritscher demonstrates how to build a variety of applications in Silverlight, with particular focus on building compelling business applications and delivering premium video and audio content. Developers will work with the C# programming language and Visual Studio Professional, as well as Expression Blend, a tool that simplifies creation of the interactive user interfaces expected in modern-day applications.

Topics include:
  • Installing the toolkit and setting up the development environment
  • Using Expression Blend vs. Visual Studio 2010
  • Creating a Silverlight page
  • Compiling an application
  • Exploring the relationship between XAML and .NET
  • Using C#
  • Working with XAML
  • Digging into the Dependency Property System
  • Deploying and debugging code
  • Creating sophisticated layouts with panel elements
  • Managing Visual State with Visual State Manager
  • Transforming the user interface (UI) with templates
  • Understanding the event model
  • Working with text
  • Using business data in a binding
  • Creating an out-of-browser (OOB) application
  • Exploring trust levels
  • Playing audio and video
  • Handling errors
  • Exploring animations
  • Working with application windows
  • Integration with XNA
Subject:
Developer
Software:
Silverlight Visual Studio
Author:
Walt Ritscher

Controlling animations

Once you have created an animation, you might need to exert some control over the animation lifetime. The Storyboard class exposes useful methods like Begin, Pause, and Stop. For this demonstration, I'm using Expression Blend and I've opened a project called Controlling Animations. I'm going to start by looking in a BasicControllingAnimation.xaml file. This first screen shows two ellipses that I would like to move across the screen when I click on the Start button: Pause and Resume. Let me show you my storyboard that I have first.

I have the storyboard called MoveStoryboard. I can see what this will do when I click on the Play button. It's going to move these items from left to right and then stop. To control the storyboard, I go to the containing storyboard--in this case called MoveStoryboard-- and I call its Begin method. Let me show you that code. In the Expression Blend, you can look at code. It has a code editor. To see the code, you can go to your projects view, find your CS file, and then double-click on that CS file.

So when you click the Start button, I'm going to call MoveStoryboard.Begin. It's really just that simple. And to pause the storyboard, I call Pause, and yes, to resume the storyboard, I call Resume. It's really that simple. To see the animation in action, I need to change the startup. This is a little more difficult to do in Expression Blend. I need to go to App.xaml > App.xaml.cs, find this section where it says call SiteHeaderFinished, and instead, instantiate my BasicControllingAnimation page, and then press F5.

I'll click on the Start button and they're running. Click on Pause and they stop. Click on Resume and they continue going. So far, so good. Let's look at the next animation. I'll stop the storyboard. And there is a bug in this version of Expression Blend. I'll see if I'll trigger it. I'm going to click on this tab. Yes, I triggered the bug. It happens to do with the tab control and animations which storyboard I have open.

The way to solve this is to close this window and then restart basic controlling animations. Select this second tab. I'll zoom out by using my mouse wheel and use the Hand tool to center things. The second animation I want to look at is the GreenStoryboard. This moves the green ball over till just until it touches the purple ellipse. Then I have a purple animation that runs from that point. Now I could have done this two ways.

I could have created a single storyboard and I could have put two animations inside the storyboard. Or in my case, I've created two separate storyboards because I want to show you that when a storyboard ends, you can use it to do some other action. Let's look at the code behind. Again, we'll go over here to BasicControllingAnimation.xaml.cs and double-click. What happens when you click on the button? I begin the GreenStoryboard, and then I register an EventHandler that says when the storyboard is completed, you're going to fire your event. I want you to call my EventHandler down here, Green Storyboard_Completed.

In GreenStoryboard_Completed, I call PurpleStoryboard.Begin. While I'm in my code, I'll also show you that I have a Stop on the reset button, and I also want to show you that you can control the speed of your animations. There's a SpeedRatio property on the storyboard, and you can make this a multiple of the current speed. So I can speed it up by multiplying it by 2. I could slow it down by multiplying it by 0.5. So here I'm saying the Green SpeedRatio and the Purple SpeedRatio are set to whatever the slider value is.

I'm ready to run the app, press F5, move to Trigger Another, click on this, and see what happens. It makes it look like there's a collision and they're moving. I'll do a reset, I'll speed things up, and try it again. Now the slow-down on the end of that doesn't look very natural. We have easings to solve that, and that's the topic of the next movie.

Find answers to the most frequently asked questions about Silverlight 5 Essential Training.


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Q: I'm trying to access a Silverlight 3D application template, [cid:image001.png@01CD0E7D.3E07ECA0]. I have already installed the Silverlight 5 SDK and my Visual Studio 2010 is professional. Could you please help me?
A: You must install XNA Studio in order to use the new Silverlight 3D templates. Otherwise the new templates will not show up. Download it at http://www.microsoft.com/download/en/details.aspx?id=23714.

For other Silverlight downloads (the toolkit, developer runtime, etc.), see http://www.silverlight.net/downloads.
 
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