BooleanKeyFrameCollection Class
.NET Framework 3.0
Represents a collection of BooleanKeyFrame objects.
Namespace: System.Windows.Media.Animation
Assembly: PresentationCore (in presentationcore.dll)
XML Namespace: http://schemas.microsoft.com/winfx/2006/xaml/presentation
Assembly: PresentationCore (in presentationcore.dll)
XML Namespace: http://schemas.microsoft.com/winfx/2006/xaml/presentation
public class BooleanKeyFrameCollection extends Freezable implements IList, ICollection, IEnumerable
public class BooleanKeyFrameCollection extends Freezable implements IList, ICollection, IEnumerable
<BooleanKeyFrameCollection .../>
<object> <object.property> oneOrMoreBooleanKeyFrames </object.property> </object>
oneOrMoreBooleanKeyFrames One or more BooleanKeyFrame objects, declared using object element syntax.
This collection is used as part of a BooleanAnimationUsingKeyFrames to animate a Boolean property value along a set of key frames.
The following example demonstrates how to use a BooleanAnimationUsingKeyFrames animation.
<!-- 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.BooleanKeyFrameCollection
System.Windows.Threading.DispatcherObject
System.Windows.DependencyObject
System.Windows.Freezable
System.Windows.Media.Animation.BooleanKeyFrameCollection
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.Community Additions
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