CachedFileUpdaterActivatedEventArgs CachedFileUpdaterActivatedEventArgs CachedFileUpdaterActivatedEventArgs CachedFileUpdaterActivatedEventArgs CachedFileUpdaterActivatedEventArgs Class


Provides information about the activated event that fires when the user saves or opens a file that needs updates from the app.

JavaScript This type appears as WebUICachedFileUpdaterActivatedEventArgs.

public : sealed class CachedFileUpdaterActivatedEventArgs : IActivatedEventArgs, IActivatedEventArgsWithUser, ICachedFileUpdaterActivatedEventArgs
struct winrt::Windows::ApplicationModel::Activation::CachedFileUpdaterActivatedEventArgs : IActivatedEventArgs, IActivatedEventArgsWithUser, ICachedFileUpdaterActivatedEventArgs
public sealed class CachedFileUpdaterActivatedEventArgs : IActivatedEventArgs, IActivatedEventArgsWithUser, ICachedFileUpdaterActivatedEventArgs
Public NotInheritable Class CachedFileUpdaterActivatedEventArgs Implements IActivatedEventArgs, IActivatedEventArgsWithUser, ICachedFileUpdaterActivatedEventArgs
// This class does not provide a public constructor.
Windows 10 requirements
Device family
Windows 10 (introduced v10.0.10240.0)
API contract
Windows.Foundation.UniversalApiContract (introduced v1)


The File picker contracts sample demonstrates how to respond to a CachedFileUpdater activation point.

// CachedFileUpdater activated event handler
protected override void OnCachedFileUpdaterActivated(CachedFileUpdaterActivatedEventArgs args)
    var CachedFileUpdaterPage = new SDKTemplate.CachedFileUpdaterPage();

// Overloaded method to respond to CachedFileUpdater events
public void Activate(CachedFileUpdaterActivatedEventArgs args)
            // Get file picker UI
            cachedFileUpdaterUI = args.CachedFileUpdaterUI;

            cachedFileUpdaterUI.FileUpdateRequested += CachedFileUpdaterUI_FileUpdateRequested;
            cachedFileUpdaterUI.UIRequested += CachedFileUpdaterUI_UIRequested;

            switch (cachedFileUpdaterUI.UpdateTarget)
                case CachedFileTarget.Local:
                    scenarios = new List<Scenario> { new Scenario() { Title = "Get latest version", ClassType = typeof(FilePickerContracts.CachedFileUpdater_Local) } };
                case CachedFileTarget.Remote:
                    scenarios = new List<Scenario> { new Scenario() { Title = "Remote file update", ClassType = typeof(FilePickerContracts.CachedFileUpdater_Remote) } };


For C#, args for an OnCachedFileUpdaterActivated override on the Application object references a CachedFileUpdaterActivatedEventArgs object. The OnCachedFileUpdaterActivated override is in the App.xaml.cs file and the Activate method is in the CachedFileUpdaterPage.xaml.cs file of the File picker contracts sample.


Learn more about providing updates for files that your app offers in the Quickstart: Providing file services through and in the Windows.Storage.Pickers.Provider namespace reference.

A CachedFileUpdaterActivatedEventArgs object is passed to the app's activated event handler when the user saves a file that requires content management from the app. This type of activation is indicated by the ActivationKind.CachedFileUpdater value returned by the Kind property.

Apps written in JavaScript must listen for and handle Windows.UI.WebUI.WebUIApplication.activated events.

UWP app using C++, C#, or Visual Basic typically implement activation points by overriding methods of the Application object. The default template app.xaml code-behind files always include an override for OnLaunched, but defining overrides for other activation points such as OnCachedFileUpdaterActivated is up to your app code.

All Application overrides involved in an activation scenario should call Window.Activate in their implementations.


CachedFileUpdaterUI CachedFileUpdaterUI CachedFileUpdaterUI CachedFileUpdaterUI CachedFileUpdaterUI

Gets the letterbox UI of the file picker that is displayed when a file needs updates from the app.

public : CachedFileUpdaterUI CachedFileUpdaterUI { get; }
CachedFileUpdaterUI CachedFileUpdaterUI();
public CachedFileUpdaterUI CachedFileUpdaterUI { get; }
Public ReadOnly Property CachedFileUpdaterUI As CachedFileUpdaterUI
var cachedFileUpdaterUI = cachedFileUpdaterActivatedEventArgs.cachedFileUpdaterUI;
CachedFileUpdaterUI CachedFileUpdaterUI CachedFileUpdaterUI

The letterbox UI of the file picker that is displayed when a file needs updates from the app.

See Also

Kind Kind Kind Kind Kind

Gets the activation type.

public : ActivationKind Kind { get; }
ActivationKind Kind();
public ActivationKind Kind { get; }
Public ReadOnly Property Kind As ActivationKind
var activationKind = cachedFileUpdaterActivatedEventArgs.kind;
See Also

PreviousExecutionState PreviousExecutionState PreviousExecutionState PreviousExecutionState PreviousExecutionState

Gets the execution state of the app before it was activated.

public : ApplicationExecutionState PreviousExecutionState { get; }
ApplicationExecutionState PreviousExecutionState();
public ApplicationExecutionState PreviousExecutionState { get; }
Public ReadOnly Property PreviousExecutionState As ApplicationExecutionState
var applicationExecutionState = cachedFileUpdaterActivatedEventArgs.previousExecutionState;

SplashScreen SplashScreen SplashScreen SplashScreen SplashScreen

Gets a SplashScreen object that provides information about the transition from the splash screen to the activated app.

public : SplashScreen SplashScreen { get; }
SplashScreen SplashScreen();
public SplashScreen SplashScreen { get; }
Public ReadOnly Property SplashScreen As SplashScreen
var splashScreen = cachedFileUpdaterActivatedEventArgs.splashScreen;
SplashScreen SplashScreen SplashScreen

The object that provides splash screen information.

See Also

User User User User User

Gets the user that the app was activated for.

public : User User { get; }
User User();
public User User { get; }
Public ReadOnly Property User As User
var user = cachedFileUpdaterActivatedEventArgs.user;
User User User

The user that the app was activated for.

Additional features and requirements
Device family
Windows 10 Anniversary Edition (introduced v10.0.14393.0)
API contract
Windows.Foundation.UniversalApiContract (introduced v3)


This property returns the logged-in user on platforms that only support single-user sessions. For platforms that support multiple users in a session (such as Xbox) this property returns the logged-in user that the app was activated for.

This property returns null when a multi-user application is activated with no specific user context.

Multi-user apps can use this property to allow or restrict app behavior. For example, you might restrict access to content or features based on the user’s credentials.

See Also