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BooleanAnimationBase Class
Visual Studio 2008
Abstract class that, when implemented, animates a Boolean value.
Assembly: PresentationCore (in PresentationCore.dll)
Notes to Inheritors:
See the Custom Animations Overview for information about extending animation classes.
The following code example demonstrates how to use the derived BooleanAnimationUsingKeyFrames class using Extensible Application Markup Language (XAML).
<!-- Demonstrates a BooleanAnimationUsingKeyFrames. The animation is used to animate the IsEnabled property of a button. --> <Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Class="Microsoft.Samples.KeyFrameAnimations.BooleanAnimationUsingKeyFramesExample" Name="myRootElement" WindowTitle="KeyFrameBoolean Animation Example"> <StackPanel Orientation="Vertical" Margin="20"> <TextBlock> Click the button to animate the its IsEnabled property with a BooleanAnimationUsingKeyFrames animation. </TextBlock> <Button Name="myAnimatedButton" Margin="200">Click Me <Button.Triggers> <EventTrigger RoutedEvent="Button.Click"> <BeginStoryboard> <Storyboard> <BooleanAnimationUsingKeyFrames Storyboard.TargetName="myAnimatedButton" Storyboard.TargetProperty="(Button.IsEnabled)" Duration="0:0:4" FillBehavior="HoldEnd"> <!-- All the key frames below are DiscreteBooleanKeyFrames. Discrete key frames create sudden "jumps" between values (no interpolation). Only discrete key frames can be used for Boolean key frame animations. --> <DiscreteBooleanKeyFrame Value="False" KeyTime="0:0:0" /> <DiscreteBooleanKeyFrame Value="True" KeyTime="0:0:1" /> <DiscreteBooleanKeyFrame Value="False" KeyTime="0:0:2" /> <DiscreteBooleanKeyFrame Value="True" KeyTime="0:0:3" /> <DiscreteBooleanKeyFrame Value="False" KeyTime="0:0:3.5" /> <DiscreteBooleanKeyFrame Value="True" KeyTime="0:0:4" /> </BooleanAnimationUsingKeyFrames> </Storyboard> </BeginStoryboard> </EventTrigger> </Button.Triggers> </Button> </StackPanel> </Page>
System.Object
System.Windows.Threading.DispatcherObject
System.Windows.DependencyObject
System.Windows.Freezable
System.Windows.Media.Animation.Animatable
System.Windows.Media.Animation.Timeline
System.Windows.Media.Animation.AnimationTimeline
System.Windows.Media.Animation.BooleanAnimationBase
System.Windows.Media.Animation.BooleanAnimationUsingKeyFrames
System.Windows.Threading.DispatcherObject
System.Windows.DependencyObject
System.Windows.Freezable
System.Windows.Media.Animation.Animatable
System.Windows.Media.Animation.Timeline
System.Windows.Media.Animation.AnimationTimeline
System.Windows.Media.Animation.BooleanAnimationBase
System.Windows.Media.Animation.BooleanAnimationUsingKeyFrames
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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