AnimatedExpander
The AnimatedExpander is a regular Expander that provides optional animated expansion functionality.  The animation consists of crossfade and slide behavior.
The AnimatedExpander class has these important members:
| Member | Description | 
|---|---|
| 
 CanMeasureCollapsedContent Property  | 
 Gets or sets whether the expander will use the width measurement of collapsed content when calculating its own width.  The default value is  When   | 
| 
 CollapseDuration Property  | 
 Gets or sets the   | 
| 
 
  | 
 Gets or sets the   | 
| 
 ExpandDuration Property  | 
 Gets or sets the   | 
| 
 HeaderContextMenu Property  | 
Gets or sets the context menu used for the header. | 
| 
 HeaderCornerRadius Property  | 
Gets or sets the corner radius used by the header. | 
| 
 HeaderPadding Property  | 
 Gets or sets the   | 
| 
 IsAutoCollapseOnBlurEnabled Property  | 
 Gets or sets whether the expander will auto-collapse when focus leaves it.  The default value is   | 
| 
 IsAutoExpandOnFocusEnabled Property  | 
 Gets or sets whether the expander will auto-expand when focus enters it.  The default value is   | 
| 
 IsAutoFocusOnExpandEnabled Property  | 
 Gets or sets whether focus will attempt to be set in the content of the expander following the completion of the expansion animation.  The default value is   | 
The AnimatedExpanderDecorator decorator is used in the template for the AnimatedExpander to provide the actual animation behavior.