uap:BackgroundTasks

项目
04/10/2015

Defines an app extensibility point of type windows.backgroundTasks. Background tasks run in a dedicated background host; that is, without a UI.

Element hierarchy

<Package>
- <Applications>
  - <Application>
    - <Extensions>
      - <uap:Extension>
        <uap:BackgroundTasks>

Syntax

<BackgroundTasks ServerName? = An alphanumeric string between 1 and 255 characters in length. Must begin with an alphabetic character. >

  <!-- Child elements -->
  uap:Task{1,17}

</uap:BackgroundTasks>

Key

? optional (zero or one)

{} specific range of occurrences

Attributes and Elements

Attributes

Attribute	Description	Data type	Required	Default value
ServerName	The server name. Ensures that only one instance of the server exists at runtime.	An alphanumeric string between 1 and 255 characters in length. Must begin with an alphabetic character.	No

Child Elements

Child Element	Description
uap:Task	The background task associated with the app extensibility point.

Parent Elements

Parent Element	Description
uap:Extension	Declares an extensibility point for the app.

Remarks

Extensions of type "windows.backgroundTask" must specify either a StartPage or EntryPoint attribute in the Extension element. For more info (and an example) see How to declare background tasks in the application manifest (JavaScript and HTML) or How to declare background tasks in the application manifest (C#/VB/C++ and XAML).

Requirements

Namespace

https://schemas.microsoft.com/appx/manifest/uap/windows10

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