Artigo
11/18/2011

Timeline Class

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Defines a segment of time.

Inheritance Hierarchy

Namespace: System.Windows.Media.Animation
Assembly: System.Windows (in System.Windows.dll)

Syntax

'Declaration
Public MustInherit Class Timeline _
    Inherits DependencyObject

public abstract class Timeline : DependencyObject

The Timeline type exposes the following members.

Constructors

	Name	Description
	Timeline	Initializes a new instance of the Timeline class.

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Properties

	Name	Description
	AutoReverse	Gets or sets a value that indicates whether the timeline plays in reverse after it completes a forward iteration.
	BeginTime	Gets or sets the time at which this Timeline should begin.
	Dispatcher	Gets the Dispatcher this object is associated with. (Inherited from DependencyObject.)
	Duration	Gets or sets the length of time for which this timeline plays, not counting repetitions.
	FillBehavior	Gets or sets a value that specifies how the animation behaves after it reaches the end of its active period.
	RepeatBehavior	Gets or sets the repeating behavior of this timeline.
	SpeedRatio	Gets or sets the rate, relative to its parent, at which time progresses for this Timeline.

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Methods

	Name	Description
	CheckAccess	Determines whether the calling thread has access to this object. (Inherited from DependencyObject.)
	ClearValue	Clears the local value of a dependency property. (Inherited from DependencyObject.)
	Equals(Object)	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
	GetAnimationBaseValue	Returns any base value established for a Silverlight dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	GetValue	Returns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ReadLocalValue	Returns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject.)
	SetValue	Sets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Events

	Name	Description
	Completed	Occurs when the Storyboard object has completed playing.

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Fields

	Name	Description
	AutoReverseProperty	Identifies the AutoReverse dependency property.
	BeginTimeProperty	Identifies the BeginTime dependency property.
	DurationProperty	Identifies the Duration dependency property.
	FillBehaviorProperty	Identifies the FillBehavior dependency property.
	RepeatBehaviorProperty	Identifies the RepeatBehavior dependency property.
	SpeedRatioProperty	Identifies for the SpeedRatio dependency property.

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Remarks

A timeline represents a segment of time. It provides properties that enable you to specify the length of that segment, when it should start, how many times it will repeat, how fast time progresses in that segment, and more. Classes that derive from Timeline provide animation functionality (e.g. DoubleAnimation, ColorAnimation, etc).

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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