ItemsSourceView Class

Definition

Namespace:

Microsoft.UI.Xaml.Controls

Represents a standardized view of the supported interactions between a given ItemsSource object and an ItemsRepeater control.

This documentation applies to WinUI 2 for UWP (for WinUI in the Windows App SDK, see the Windows App SDK namespaces).

/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
/// [Windows.Foundation.Metadata.ContractVersion(Microsoft.UI.Xaml.XamlContract, 65536)]
class ItemsSourceView : INotifyCollectionChanged

[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
[Windows.Foundation.Metadata.ContractVersion(typeof(Microsoft.UI.Xaml.XamlContract), 65536)]
public class ItemsSourceView : INotifyCollectionChanged

Public Class ItemsSourceView
Implements INotifyCollectionChanged

Inheritance

Object IInspectable ItemsSourceView

Attributes

MarshalingBehaviorAttribute ThreadingAttribute ContractVersionAttribute

Implements

INotifyCollectionChanged INotifyCollectionChanged

Examples

Tip

For more info, design guidance, and code examples, see Items repeater.

Open the WinUI 2 Gallery app and see the ItemsRepeater in action.

The WinUI 2 Gallery app includes interactive examples of most WinUI 2 controls, features, and functionality. Get the app from the Microsoft Store or get the source code on GitHub.

Remarks

Components written to work with ItemsRepeater should consume the ItemsSource via ItemsSourceView since this provides a normalized view of the ItemsSource. That way, each component does not need to know if the source is an IEnumerable, an IVector, or something else.

Constructors

ItemsSourceView(Object)

Initializes a new instance of the ItemsSourceView class for the specified data source. This documentation applies to WinUI 2 for UWP (for WinUI in the Windows App SDK, see the Windows App SDK namespaces).

Properties

Count	Gets the number of items in the collection. This documentation applies to WinUI 2 for UWP (for WinUI in the Windows App SDK, see the Windows App SDK namespaces).
HasKeyIndexMapping	Gets a value that indicates whether the items source can provide a unique key for each item. This documentation applies to WinUI 2 for UWP (for WinUI in the Windows App SDK, see the Windows App SDK namespaces).

Methods

GetAt(Int32)	Retrieves the item at the specified index. This documentation applies to WinUI 2 for UWP (for WinUI in the Windows App SDK, see the Windows App SDK namespaces).
IndexFromKey(String)	Retrieves the index of the item that has the specified unique identifier (key). This documentation applies to WinUI 2 for UWP (for WinUI in the Windows App SDK, see the Windows App SDK namespaces).
IndexOf(Object)	Retrieves the index of the specified item. This documentation applies to WinUI 2 for UWP (for WinUI in the Windows App SDK, see the Windows App SDK namespaces).
KeyFromIndex(Int32)	Retrieves the unique identifier (key) for the item at the specified index. This documentation applies to WinUI 2 for UWP (for WinUI in the Windows App SDK, see the Windows App SDK namespaces).

Events

CollectionChanged

Occurs when the collection has changed to indicate the reason for the change and which items changed. This documentation applies to WinUI 2 for UWP (for WinUI in the Windows App SDK, see the Windows App SDK namespaces).

See also

• ItemsSourceView