ResolutionValueExtensionsTryResolveT Method

Try to retrieve a service from the context.

Namespace: Autofac
Assembly: Autofac (in Autofac.dll) Version: 6.0.0+39696a967e8826f7f1ebc8c1ff4523c9dd75abe0

Syntax

public static bool TryResolve<T>(
	this IComponentContext context,
	out Nullable<T> instance
)
where T : struct, new()

<ExtensionAttribute>
Public Shared Function TryResolve(Of T As {Structure, New}) ( 
	context As IComponentContext,
	<OutAttribute> ByRef instance As Nullable(Of T)
) As Boolean

Parameters

context: Type: AutofacIComponentContext
The context from which to resolve the service.
instance: Type: SystemNullableT
The resulting component instance providing the service, or default(T).

Type Parameters

T: The service type to resolve.

Return Value

Type: Boolean
True if a component providing the service is available.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IComponentContext. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Exceptions

Exception	Condition
DependencyResolutionException

Reference

ResolutionValueExtensions Class