TryGetRequiredService<TService> Method

Tries to gets the required service object of the specified type, casting it to the same type.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
<ExtensionAttribute()>
<CanBeNullAttribute()>
Public Shared Function TryGetRequiredService(Of TService)( _
   ByVal serviceProvider As IServiceProvider, _
   ByRef service As TService _
) As Exception

'Usage
 
Dim serviceProvider As IServiceProvider
Dim service As TService
Dim value As Exception
 
value = IServiceProviderExtension.TryGetRequiredService(Of TService)(serviceProvider, service)

[Extension()]
[CanBeNull()]
public static Exception TryGetRequiredService<TService>( 
   IServiceProvider serviceProvider,
   out TService service
)

[Extension()]
[CanBeNull()]
public:
static Exception^ TryGetRequiredServicegeneric<typename TService>
( 
   IServiceProvider^ serviceProvider,
   [Out] TService^ service
)

Parameters

serviceProvider: The service provider.
service: A service object of type TService.

Type Parameters

TService: The type of service object to get.

Return Value

Returns null when the service object has been successfully retrieved. If there is no service of the requested type, returns a non-null exception.

Requirements

Target Platforms: .NET Framework: Windows 7 with SP1, Windows Server 2012; .NET Core: Linux, Microsoft Windows

Reference

IServiceProviderExtension Class
IServiceProviderExtension Members