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AddDeleteThemeTransition Class

Definition

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Provides the animated transition behavior for when controls add or delete children of a panel. For example, if you have a collection of photos displayed in a Grid, you can associate this animation to the Grid so that when photos are added or deleted, the photos will animate in and out of view.

public ref class AddDeleteThemeTransition sealed : Transition
/// [Windows.Foundation.Metadata.Activatable(65536, "Microsoft.UI.Xaml.WinUIContract")]
/// [Windows.Foundation.Metadata.ContractVersion(Microsoft.UI.Xaml.WinUIContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
class AddDeleteThemeTransition final : Transition
[Windows.Foundation.Metadata.Activatable(65536, "Microsoft.UI.Xaml.WinUIContract")]
[Windows.Foundation.Metadata.ContractVersion(typeof(Microsoft.UI.Xaml.WinUIContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
public sealed class AddDeleteThemeTransition : Transition
Public NotInheritable Class AddDeleteThemeTransition
Inherits Transition
<AddDeleteThemeTransition .../>
Inheritance
Object Platform::Object IInspectable DependencyObject Transition AddDeleteThemeTransition
Attributes

Examples

The following example shows how to use the AddDeleteThemeTransition to animate rectangles as they are added and deleted from a panel. Notice how the other child elements of the panel re-flow when one of them is removed.

<Button Content="Add Rectangle" Click="AddButton_Click"/>
<Button Content="Remove Rectangle" Click="RemoveButton_Click"/>


<ItemsControl Grid.Row="1" x:Name="rectangleItems">
 <ItemsControl.ItemContainerTransitions>
 <TransitionCollection>

 <!-- You use AddDeleteThemeTransition 
 in panels like in a WrapGrid. -->
 <AddDeleteThemeTransition/>
 </TransitionCollection>
 </ItemsControl.ItemContainerTransitions>
 <ItemsControl.ItemsPanel>
 <ItemsPanelTemplate>
 <WrapGrid Height="400"/>
 </ItemsPanelTemplate>
 </ItemsControl.ItemsPanel>

</ItemsControl>

private void RemoveButton_Click(object sender, RoutedEventArgs e)
{
 if (rectangleItems.Items.Count > 0)
 rectangleItems.Items.RemoveAt(0);
}

private void AddButton_Click(object sender, RoutedEventArgs e)
{
 Color rectColor = new Color();
 rectColor.R = 200;
 rectColor.A = 250;
 Rectangle myRectangle = new Rectangle();
 myRectangle.Fill = new SolidColorBrush(rectColor);
 myRectangle.Width = 100;
 myRectangle.Height = 100;
 myRectangle.Margin = new Thickness(10);
 rectangleItems.Items.Add(myRectangle);

}

Constructors

Name Description
AddDeleteThemeTransition()

Initializes a new instance of the AddDeleteThemeTransition class.

Properties

Name Description
Dispatcher

Always returns null in a Windows App SDK app. Use DispatcherQueue instead.

(Inherited from DependencyObject)
DispatcherQueue

Gets the DispatcherQueue that this object is associated with. The DispatcherQueue represents a facility that can access the DependencyObject on the UI thread even if the code is initiated by a non-UI thread.

(Inherited from DependencyObject)

Methods

Name Description
ClearValue(DependencyProperty)

Clears the local value of a dependency property.

(Inherited from DependencyObject)
GetAnimationBaseValue(DependencyProperty)

Returns any base value established for a dependency property, which would apply in cases where an animation is not active.

(Inherited from DependencyObject)
GetValue(DependencyProperty)

Returns the current effective value of a dependency property from a DependencyObject.

(Inherited from DependencyObject)
ReadLocalValue(DependencyProperty)

Returns the local value of a dependency property, if a local value is set.

(Inherited from DependencyObject)
RegisterPropertyChangedCallback(DependencyProperty, DependencyPropertyChangedCallback)

Registers a notification function for listening to changes to a specific DependencyProperty on this DependencyObject instance.

(Inherited from DependencyObject)
SetValue(DependencyProperty, Object)

Sets the local value of a dependency property on a DependencyObject.

(Inherited from DependencyObject)
UnregisterPropertyChangedCallback(DependencyProperty, Int64)

Cancels a change notification that was previously registered by calling RegisterPropertyChangedCallback.

(Inherited from DependencyObject)

Applies to

See also

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