| ResolutionExtensionsTryResolveKeyed Method  | 
 
            Try to retrieve a service from the context.
            
 
    Namespace: 
   Autofac
    Assembly:
   Autofac (in Autofac.dll) Version: 6.0.0+39696a967e8826f7f1ebc8c1ff4523c9dd75abe0
 Syntax
Syntaxpublic static bool TryResolveKeyed(
	this IComponentContext context,
	Object serviceKey,
	Type serviceType,
	out Object instance
)
<ExtensionAttribute>
Public Shared Function TryResolveKeyed ( 
	context As IComponentContext,
	serviceKey As Object,
	serviceType As Type,
	<OutAttribute> ByRef instance As Object
) As Boolean
Parameters
- context
- Type: AutofacIComponentContext
 The context from which to resolve the service.
- serviceKey
- Type: SystemObject
 The key of the service to resolve.
- serviceType
- Type: SystemType
 The type of the service to resolve.
- instance
- Type: SystemObject
 The resulting component instance providing the service, or null.
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
Exceptions See Also
See Also