IApplicationService Interface
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Defines methods that application extension services must implement in order to enable an application to start and stop the service.
Namespace: System.Windows
Assembly: System.Windows (in System.Windows.dll)
Syntax
'Declaration
Public Interface IApplicationService
public interface IApplicationService
The IApplicationService type exposes the following members.
Methods
| Name | Description | |
|---|---|---|
.gif "Public method") .gif "Supported by Silverlight for Windows Phone") |
StartService | Called by an application in order to initialize the application extension service. |
|
StopService | Called by an application in order to stop the application extension service. |
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Remarks
You can add extension services to an application using XAML or procedural code with the Application.ApplicationLifetimeObjects property.
Application extension services must implement the IApplicationService interface in order to perform start and stop operations. Before the Application.Startup event, the application calls the StartService method for each service in the order in which they were registered. After the Application.Exit event, the application calls the StopService method for each service in the reverse order. This start and stop ordering enables services to create dependencies on other services.
Application extension services can optionally implement the IApplicationLifetimeAware interface in order to perform operations immediately before and after the Application.Startup and Application.Exit events.
For more information, see Application Extension Services.
Version Information
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
See Also