Software data is mutable information that’s created and maintained by a specific app.

Software data is mutable information that’s created and maintained by a specific app.

It provides runtime county, software options, consumer preferences, resource articles (for instance the dictionary meanings in a dictionary application), alongside settings. Application information is distinct from consumer facts, data the user produces and manages when using an app. User information include document or mass media files, e-mail or interaction transcripts, or databases files holding contents developed by the user. Individual information might of use or meaningful to multiple app. Typically, this really is information that individual would like to change or transfer as an entity in addition to the app alone, particularly a document.

Essential notice about app data: The time of the application information is tied to the time of the software. When the app is removed, every one of the application data is forgotten as a consequence. Don’t use app facts to store user data or anything that people might perceive as valuable and irreplaceable. It is recommended that the user’s libraries and Microsoft OneDrive be employed to keep this type of information. Application information is well suited for storing app-specific individual preferences, options, and preferred.

Types of software facts

There are two main forms of app data: options and documents.


Need options to save consumer choices and program state information. The application information API enables you to quickly establish and access options (we’re going to explain to you some examples later on in this essay).

Listed here are data sort you can use for app settings:

  • UInt8, Int16, UInt16, Int32, UInt32, Int64, UInt64, Individual, Increase
  • Boolean
  • Char16, String
  • DateTime, TimeSpan
    • For C#/.NET, use: System.DateTimeOffset, System.TimeSpan
  • GUID, Aim, Size, Rect
  • ApplicationDataCompositeValue: some relevant application configurations that must definitely be serialized and deserialized atomically. Usage composite settings to easily deal with atomic updates of interdependent configurations. The device guarantees the stability of composite options during concurrent access and roaming. Composite setup include enhanced for small quantities of data, and performance tends to be poor when you use all of them for huge information sets.


Use data to keep binary facts or perhaps to make it possible for yours, customized serialized sort.

Keeping software information in software information storage

Whenever an application is put in, the computer provides it its own per-user data sites for settings and files. You don’t have to discover in which or how this data is present, as the experience in charge of handling the bodily storing, making certain the info is held isolated off their apps along with other users. The system also conserves the belongings in these facts shops as soon as the user installs an update to your application and removes the contents of these data storage completely and cleanly once software is actually uninstalled.

Within the app information shop, each software provides system-defined underlying directories: one for local files, one for roaming files, and another for short-term data files. Your application can also add latest files and brand-new bins to every of those underlying directories.

Neighborhood app data

Local app data should-be useful any facts that should be maintained between app meeting and is not suited to roaming software data. Facts which is not applicable on more equipment must kept here and. There is no common proportions constraint on regional facts kept. Utilize the regional app facts put for data so it will not make sense to roam and big information sets.

Retrieve your local software information shop

One which just browse or write regional software facts, it is vital that you retrieve a nearby software information shop. To recover the area software information shop, use the ApplicationData.LocalSettings homes to get the application’s neighborhood options as an ApplicationDataContainer item. Make use of the ApplicationData.LocalFolder residential property to obtain the records in a StorageFolder item. Utilize the ApplicationData.LocalCacheFolder land to get the folder during the local app information keep where you are able to help save files that are not included in back-up and improve.

Generate and recover a simple local environment

To produce or compose an environment, use the ApplicationDataContainer.Values house to access the options within the localSettings bin we have in the last step. This example produces a setting named exampleSetting .

To retrieve the environment, you use the same ApplicationDataContainer.Values belongings that you always produce the environment. This instance shows tips access the style we just developed.

Generate and recover a local composite value

To generate or write a composite worth, establish an ApplicationDataCompositeValue object. This sample produces a composite setting called exampleCompositeSetting and brings they towards the localSettings bin.

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