HttpClient.GetAsync Method (Uri, HttpCompletionOption, CancellationToken)
Send a GET request to the specified Uri with an HTTP completion option and a cancellation token as an asynchronous operation.
Namespace: System.Net.Http
Assembly: System.Net.Http (in System.Net.Http.dll)
'Declaration Public Function GetAsync ( _ requestUri As Uri, _ completionOption As HttpCompletionOption, _ cancellationToken As CancellationToken _ ) As Task(Of HttpResponseMessage)
Parameters
- requestUri
- Type: System.Uri
The Uri the request is sent to.
- completionOption
- Type: System.Net.Http.HttpCompletionOption
An HTTP completion option value that indicates when the operation should be considered completed.
- cancellationToken
- Type: System.Threading.CancellationToken
A cancellation token that can be used by other objects or threads to receive notice of cancellation.
Return Value
Type: System.Threading.Tasks.Task(Of HttpResponseMessage)Returns Task(Of TResult).
The task object representing the asynchronous operation.
| Exception | Condition |
|---|---|
| ArgumentNullException | The requestUri was Nothing. |
This operation will not block. The returned Task(Of TResult) object will complete based on the completionOption parameter after the part or all of the response (including content) is read.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
