IVsService<T>.GetValueAsync(CancellationToken) Method
Definition
Important
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Retrieves a proffered service asynchronously, throwing an exception if it could not be retrieved.
public System.Threading.Tasks.Task<T> GetValueAsync (System.Threading.CancellationToken cancellationToken = default);
abstract member GetValueAsync : System.Threading.CancellationToken -> System.Threading.Tasks.Task<'T (requires 'T : null)>
Public Function GetValueAsync (Optional cancellationToken As CancellationToken = Nothing) As Task(Of T)
Parameters
- cancellationToken
- CancellationToken
A token whose cancellation indicates that the caller no longer is interested in the result. This will not cancel the in-progress loading of packages and/or creation of services as a result of the service retrieval, but this token will result in an expediant cancellation of the returned Task.
Returns
A task representing the service retrieval whose result is the service.
Exceptions
cancellationToken
has been canceled.
There was a failure retrieving the service due to one of the following conditions:
- The service threw an exception during activation. InnerException may include details about the underlying failure.
- The associated package failed to load. InnerException may include details about the underlying failure.
- The associated package could not be found, or the package did not correctly proffer the service.
- The associated package proffered
null
. - The service does not support the requested interface specified by
T
. - The environment has starting shutting down and the retrieval would have resulted in a package load.
Remarks
This method is safe to access from any thread.