AnimatedExpanderDecorator Class
Represents a Decorator that can be used in an Expander template to provide animated content display.
public class AnimatedExpanderDecorator : Decorator- Inheritance:
- object Visual UIElement FrameworkElement Decorator object
Constructors
AnimatedExpanderDecorator()
Initializes an instance of the class.
public AnimatedExpanderDecorator()Properties
CanMeasureCollapsedContent
Indicates whether the expander will use the width measurement of collapsed content when calculating its own width.
public bool CanMeasureCollapsedContent { get; set; }Property Value
- bool:
trueif the expander will use the width measurement of collapsed content when calculating its own width; otherwise,false. The default value isfalse.
Remarks
When true, a consistent width will be maintained when collapsed.
When false, the expander will load faster (if collapsed) since less measuring is taking place.
CollapseDuration
The Duration of the collapse animation.
public Duration CollapseDuration { get; set; }Property Value
- Duration:
The default value is
150milliseconds.
CollapsedVisibility
The Visibility of the decorator when IsExpanded is false.
public Visibility CollapsedVisibility { get; set; }Property Value
- Visibility:
The default value is
Hidden.
ExpandDirection
The ExpandDirection of the expansion.
public ExpandDirection ExpandDirection { get; set; }Property Value
- ExpandDirection:
The default value is
ExpandDirection.Down.
ExpandDuration
The Duration of the expand animation.
public Duration ExpandDuration { get; set; }Property Value
- Duration:
The default value is
150milliseconds.
IsAnimationEnabled
Indicates whether animations are enabled for an element, when supported.
public bool IsAnimationEnabled { get; set; }Property Value
- bool:
trueif animations are enabled; otherwise,false. The default value istrue.
IsExpanded
Indicates whether the contents of the decorator are expanded.
public bool IsExpanded { get; set; }Property Value
- bool:
trueif the contents of the decorator are expanded; otherwise,false.
Methods
ArrangeOverride(Size)
Arranges the content of a Decorator element.
protected override Size ArrangeOverride(Size arrangeSize)| Parameter | Type | Description |
|---|---|---|
| arrangeSize | Size | The System.Windows.Size this element uses to arrange its child content. |
Returns
- Size:
The System.Windows.Size that represents the arranged size of this Decorator element and its child.
GetCollapseDuration(DependencyObject)
Gets the value of the CollapseDuration attached property for the specified object.
public static Duration GetCollapseDuration(DependencyObject obj)| Parameter | Type | Description |
|---|---|---|
| obj | DependencyObject | The object from which the property value is read. |
Returns
GetExpandDuration(DependencyObject)
Gets the value of the ExpandDuration attached property for the specified object.
public static Duration GetExpandDuration(DependencyObject obj)| Parameter | Type | Description |
|---|---|---|
| obj | DependencyObject | The object from which the property value is read. |
Returns
MeasureOverride(Size)
Measures the child element of a Decorator to prepare for arranging it during the ArrangeOverride(Size) pass.
protected override Size MeasureOverride(Size availableSize)| Parameter | Type | Description |
|---|---|---|
| availableSize | Size |
Returns
- Size:
The target System.Windows.Size of the element.
OnCollapseAnimationCompleted()
Raises the CollapseAnimationCompleted event.
protected virtual void OnCollapseAnimationCompleted()OnExpansionAnimationCompleted()
Raises the ExpansionAnimationCompleted event.
protected virtual void OnExpansionAnimationCompleted()SetCollapseDuration(DependencyObject, Duration)
Sets the value of the CollapseDuration attached property to the specified object.
public static void SetCollapseDuration(DependencyObject obj, Duration value)| Parameter | Type | Description |
|---|---|---|
| obj | DependencyObject | The object to which the attached property is written. |
| value | Duration | The value to set. |
SetExpandDuration(DependencyObject, Duration)
Sets the value of the ExpandDuration attached property to the specified object.
public static void SetExpandDuration(DependencyObject obj, Duration value)| Parameter | Type | Description |
|---|---|---|
| obj | DependencyObject | The object to which the attached property is written. |
| value | Duration | The value to set. |
Events
CollapseAnimationCompleted
Occurs when the expansion animation has completed.
ExpansionAnimationCompleted
Occurs when the expansion animation has completed.
Fields
CanMeasureCollapsedContentProperty
Defines the CanMeasureCollapsedContent property.
public static readonly DependencyProperty CanMeasureCollapsedContentPropertyCollapseAnimationCompletedEvent
Defines the CollapseAnimationCompleted event.
public static readonly RoutedEvent CollapseAnimationCompletedEventCollapseDurationProperty
Defines the CollapseDuration property.
public static readonly DependencyProperty CollapseDurationPropertyCollapsedVisibilityProperty
Defines the CollapsedVisibility property.
public static readonly DependencyProperty CollapsedVisibilityPropertyExpandDirectionProperty
Defines the ExpandDirection property.
public static readonly DependencyProperty ExpandDirectionPropertyExpandDurationProperty
Defines the ExpandDuration property.
public static readonly DependencyProperty ExpandDurationPropertyExpansionAnimationCompletedEvent
Defines the ExpansionAnimationCompleted event.
public static readonly RoutedEvent ExpansionAnimationCompletedEventIsAnimationEnabledProperty
Defines the IsAnimationEnabled dependency property.
public static readonly DependencyProperty IsAnimationEnabledPropertyIsExpandedProperty
Defines the IsExpanded property.
public static readonly DependencyProperty IsExpandedProperty