IItemContainerProvider Interface
Definition
Important
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Exposes a Microsoft UI Automation method to enable applications to find an element in a container, such as a virtualized list. Implement this interface in order to support the capabilities that an automation client requests with a AutomationPeer.GetPattern call and PatternInterface.ItemContainer.
public interface class IItemContainerProvider/// [Windows.Foundation.Metadata.ContractVersion(Microsoft.UI.Xaml.WinUIContract, 65536)]
/// [Windows.Foundation.Metadata.Guid(2905174883, 26958, 22661, 153, 125, 162, 214, 223, 244, 21, 167)]
struct IItemContainerProvider[Windows.Foundation.Metadata.ContractVersion(typeof(Microsoft.UI.Xaml.WinUIContract), 65536)]
[Windows.Foundation.Metadata.Guid(2905174883, 26958, 22661, 153, 125, 162, 214, 223, 244, 21, 167)]
public interface IItemContainerProviderPublic Interface IItemContainerProvider- Derived
- Attributes
Remarks
Controls that contain a large number of child items can use virtualization to efficiently manage the items. With virtualization, the control maintains full information in memory for only a subset of items at any given time. Typically, the subset includes only those items that are currently visible to the user. Full information about the remaining virtualized items is kept in storage and is loaded into memory, or realized, as the control needs it, for example, as new items become visible to the user. A related pattern is IVirtualizedItemProvider. For more info on what this pattern is for, see ItemContainer Control Pattern.
IItemContainerProvider is implemented by the existing Windows Runtime automation peers for various list controls or views, controls that share the base class ItemsControl. Each of these peers inherits from ItemsControlAutomationPeer, and ItemsControlAutomationPeer provides the common Microsoft.UI.Xaml.Automation.Peers.ItemsControlAutomationPeer.FindItemByProperty implementation.
The IItemContainerProvider pattern doesn't have a pattern property identifier class, the only API to implement is FindItemByProperty, a method.
Methods
| FindItemByProperty(IRawElementProviderSimple, AutomationProperty, Object) |
Retrieves an element by the specified property value. |