DbDataReader.CloseAsync Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Asynchronously closes the DbDataReader object.
public:
virtual System::Threading::Tasks::Task ^ CloseAsync();public virtual System.Threading.Tasks.Task CloseAsync ();abstract member CloseAsync : unit -> System.Threading.Tasks.Task
override this.CloseAsync : unit -> System.Threading.Tasks.TaskPublic Overridable Function CloseAsync () As TaskReturns
A task representing the asynchronous operation.
Remarks
The default implementation of this asynchronous method delegates to its synchronous counterpart and returns a completed Task, potentially blocking the calling thread.
Data providers that support asynchronous programming should override the default implementation using asynchronous I/O operations.
This method stores in the task it returns all non-usage exceptions that the method's synchronous counterpart can throw. If an exception is stored into the returned task, that exception will be thrown when the task is awaited. Usage exceptions, such as ArgumentException, are still thrown synchronously. For the stored exceptions, see the exceptions thrown by Close().
