ListViewPersistenceHelper Class

Definition

Namespace:

Microsoft.UI.Xaml.Controls

Represents a helper class to save and retrieve the relative scroll position of the ListView.

C#

[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 ListViewPersistenceHelper

Inheritance

Object ListViewPersistenceHelper

Attributes

ContractVersionAttribute MarshalingBehaviorAttribute ThreadingAttribute

Examples

For a complete implementation, see the Restore scroll position sample in the ListView and GridView sample repository.

Remarks

If the ItemsStackPanel.ItemsUpdatingScrollMode property is set to KeepItemsInView, ListViewPersistenceHelper attempts to restore the scroll position using the key of the first visible item. If ItemsUpdatingScrollMode is KeepLastItemInView, it attempts to restore the scroll position using the key of the last visible item.

Methods

GetRelativeScrollPosition(ListViewBase, ListViewItemToKeyHandler)	Retrieves the relative scroll position of the ListView.
SetRelativeScrollPositionAsync(ListViewBase, String, ListViewKeyToItemHandler)	Begins an asynchronous action to set the relative scroll position of the ListView.

Applies to

See also

• <xref:Microsoft.UI.Xaml.Controls.ListView%0a%2b+%5bListView+and+GridView%5d(%2fwindows%2fuwp%2fcontrols-and-patterns%2flistview-and-gridview)>