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Starting in Windows 10, version 1607, you can use methods of the StoreContext class in the Windows.Services.Store namespace to programmatically check for package updates for the current app from the Microsoft Store, and download and install the updated packages. You can also query for packages that you have marked as mandatory in Partner Center and disable functionality in your app until the mandatory update is installed.

Additional StoreContext methods introduced in Windows 10, version 1803 enable you to download and install package updates silently (without displaying a notification UI to the user), uninstall an optional package, and get info about packages in the download and install queue for your app.

These features help you automatically keep your user base up to date with the latest version of your app, optional packages, and related services in the Store.

Download and install package updates with the user's permission

This code example demonstrates how to use the GetAppAndOptionalStorePackageUpdatesAsync method to discover all available package updates from the Store and then call the RequestDownloadAndInstallStorePackageUpdatesAsync method to download and install the updates. When using this method to download and install updates, the OS displays a dialog that asks the user's permission before downloading the updates.

Note

Windows Installer Package

These methods support required and optional packages for your app. Optional packages are useful for downloadable content (DLC) add-ons, dividing your large app for size constraints, or for shipping additional content separate from your core app. To get permission to submit an app that uses optional packages (including DLC add-ons) to the Store, see Windows developer support.

This code example assumes:

The code runs in the context of a Page.
The Page contains a ProgressBar named downloadProgressBar to provide status for the download operation.
The code file has a using statement for the Windows.Services.Store, Windows.Threading.Tasks, and Windows.UI.Popups namespaces.
The app is a single-user app that runs only in the context of the user that launched the app. For a multi-user app, use the GetForUser method to get a StoreContext object instead of the GetDefault method.

Note

To only download (but not install) the available package updates, use the RequestDownloadStorePackageUpdatesAsync method.

Display download and install progress info

When you call the RequestDownloadStorePackageUpdatesAsync or RequestDownloadAndInstallStorePackageUpdatesAsync method, you can assign a Progress handler that is called one time for each step in the download (or download and install) process for each package in this request. The handler receives a StorePackageUpdateStatus object that provides info about the update package that raised the progress notification. The previous example uses the PackageDownloadProgress field of the StorePackageUpdateStatus object to display the progress of the download and install process.

Be aware that when you call RequestDownloadAndInstallStorePackageUpdatesAsync to download and install package updates in a single operation, the PackageDownloadProgress field increases from 0.0 to 0.8 during the download process for a package, and then it increases from 0.8 to 1.0 during the install. Therefore, if you map the percentage shown in your custom progress UI directly to the value of the PackageDownloadProgress field, your UI will show 80% when the package is finished downloading and the OS displays the installation dialog. If you want your custom progress UI to display 100% when the package is downloaded and ready to be installed, you can modify your code to assign 100% to your progress UI when the PackageDownloadProgress field reaches 0.8.

Download and install package updates silently

Starting in Windows 10, version 1803, you can use the TrySilentDownloadStorePackageUpdatesAsync and TrySilentDownloadAndInstallStorePackageUpdatesAsync methods to download and install package updates silently, without displaying a notification UI to the user. This operation will succeed only if the user has enabled the Update apps automatically setting in the Store and the user is not on a metered network. Before calling these methods, you can first check the CanSilentlyDownloadStorePackageUpdates property to determine whether these conditions are currently met. Install free bike racing games.

This code example demonstrates how to use the GetAppAndOptionalStorePackageUpdatesAsync method to discover all available package updates and then call the TrySilentDownloadStorePackageUpdatesAsync and TrySilentDownloadAndInstallStorePackageUpdatesAsync methods to download and install the updates silently. Install free mcboot from usb.

This code example assumes:

The code file has a using statement for the Windows.Services.Store and System.Threading.Tasks namespaces.
The app is a single-user app that runs only in the context of the user that launched the app. For a multi-user app, use the GetForUser method to get a StoreContext object instead of the GetDefault method.

Note

The IsNowAGoodTimeToRestartApp, RetryDownloadAndInstallLater, and RetryInstallLater methods called by the code in this example are placeholder methods that are intended to be implemented as needed according to your own app's design.

Mandatory package updates

When you create a package submission in Partner Center for an app that targets Windows 10, version 1607 or later, you can mark the package as mandatory and the date and time on which it becomes mandatory. When this property is set and your app discovers that the package update is available, your app can determine whether the update package is mandatory and alter its behavior until the update is installed (for example, your app can disable features).

Note

The mandatory status of a package update is not enforced by Microsoft, and the OS does not provide a UI to indicate to users that a mandatory app update must be installed. Developers are intended to use the mandatory setting to enforce mandatory app updates in their own code.

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To mark a package submission as mandatory:

Sign in to Partner Center and navigate to the overview page for your app.
Click the name of the submission that contains the package update you want to make mandatory.
Navigate to the Packages page for the submission. Near the bottom of this page, select Make this update mandatory and then choose the day and time on which the package update becomes mandatory. This option applies to all UWP packages in the submission.

For more information, see Upload app packages.

Note

If you create a package flight, you can mark the packages as mandatory using a similar UI on the Packages page for the flight. In this case, the mandatory package update applies only to the customers who are part of the flight group.

Code example for mandatory packages

The following code example demonstrates how to determine whether any update packages are mandatory. Typically, you should downgrade your app experience gracefully for the user if a mandatory package update does not successfully download or install.

Uninstall optional packages

Starting in Windows 10, version 1803, you can use the RequestUninstallStorePackageAsync or RequestUninstallStorePackageByStoreIdAsync method