HttpMessageHandler::SendAsync Method
Send an HTTP request as an asynchronous operation.
Namespace: System.Net.Http
Assembly: System.Net.Http (in System.Net.Http.dll)
protected public: virtual Task<HttpResponseMessage^>^ SendAsync( HttpRequestMessage^ request, CancellationToken cancellationToken ) abstract
Parameters
- request
- Type: System.Net.Http::HttpRequestMessage
The HTTP request message to send.
- cancellationToken
- Type: System.Threading::CancellationToken
The cancellation token to cancel operation.
Return Value
Type: System.Threading.Tasks::Task<HttpResponseMessage>Returns Task<TResult>.
The task object representing the asynchronous operation.
| Exception | Condition |
|---|---|
| ArgumentNullException | The request was nullptr. |
This operation will not block. The returned Task<TResult> object will complete once the entire response including content is read.
The SendAsync method is used primarily by the system. This method is called by the system one of the HttpClient::SendAsync methods is called. Most apps will never call this method.
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.
