Notice the Local and Roaming folders inside? Make your job easier with our best practices guide for installation packaging. Add your app. Enterprise Packaging Checklist Make your job easier with our best practices guide for installation packaging.
The file-system directory that contains the templates that are available to all users. The file-system directory that serves as a repository for video files common to all users. A folder for components that are shared across applications on bit systems. A folder for components that are shared across applications.
The Windows directory or system root. The file-system directory that is used to store administrative tools for an individual user. The file-system directory that serves as a common repository for application-specific data.
The file-system directory acting as a staging area for files waiting to be written to CD. The virtual folder representing Network Connections that contains network and dial-up connections. The file-system directory that serves as a common repository for Internet cookies. The file-system directory used to physically store file objects on the desktop, which should not be confused with the desktop folder itself.
The virtual folder representing My Computer that contains everything on the local computer: storage devices, printers, and Control Panel. The folder may also contain mapped network drives. The file-system directory that serves as a common repository for the user's favorites. The file-system directory that serves as a common repository for temporary Internet files. Q - The four types of environment variable. Q - Set compatibility variables in a batch file.
Q - Registry Settings for Folder Redirection. StackOverflow - Storing a Newline in a variable. The current Command Processor Extensions version number. The highest NUMA node number on this computer.
Values property that you used to create the setting. This example shows how to retrieve the setting we just created. To create or write a composite value, create an ApplicationDataCompositeValue object.
This example creates a composite setting named exampleCompositeSetting and adds it to the localSettings container. To create and update a file in the local app data store, use the file APIs, such as Windows.
CreateFileAsync and Windows. This example creates a file named dataFile. The ReplaceExisting value from the CreationCollisionOption enumeration indicates to replace the file if it already exists. To open and read a file in the local app data store, use the file APIs, such as Windows.
GetFileAsync , Windows. This example opens the dataFile. For details on loading file resources from various locations, see How to load file resources.
PSR allows non-Microsoft developers to access roaming data on devices, enabling developers of UWP applications to write data to Windows and synchronize it to other instantiations of Windows for that user.
If you use roaming data in your app, your users can easily keep your app's app data in sync across multiple devices.
If a user installs your app on multiple devices, the OS keeps the app data in sync, reducing the amount of setup work that the user needs to do for your app on their second device. Roaming also enables your users to continue a task, such as composing a list, right where they left off even on a different device. The OS replicates roaming data to the cloud when it is updated, and synchronizes the data to the other devices on which the app is installed.
The OS limits the size of the app data that each app may roam. See ApplicationData. If the app hits this limit, none of the app's app data will be replicated to the cloud until the app's total roamed app data is less than the limit again. For this reason, it is a best practice to use roaming data only for user preferences, links, and small data files. Roaming data for an app is available in the cloud as long as it is accessed by the user from some device within the required time interval.
If the user does not run an app for longer than this time interval, its roaming data is removed from the cloud. If a user uninstalls an app, its roaming data isn't automatically removed from the cloud, it's preserved. If the user reinstalls the app within the time interval, the roaming data is synchronized from the cloud. Any user can benefit from roaming app data if they use a Microsoft account to log on to their device. However, users and group policy administrators can switch off roaming app data on a device at any time.
If a user chooses not to use a Microsoft account or disables roaming data capabilities, she will still be able to use your app, but app data will be local to each device. Data stored in the PasswordVault will only transition if a user has made a device "trusted".
If a device isn't trusted, data secured in this vault will not roam. Roaming app data is not intended for simultaneous use on more than one device at a time. If a conflict arises during synchronization because a particular data unit was changed on two devices, the system will always favor the value that was written last. This ensures that the app utilizes the most up-to-date information.
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