HttpMessageHandler.SendAsync Method
.NET Framework 4.5
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Send an HTTP request as an asynchronous operation.
Namespace: System.Net.Http
Assembly: System.Net.Http (in System.Net.Http.dll)
protected internal abstract Task<HttpResponseMessage> SendAsync( HttpRequestMessage request, CancellationToken cancellationToken )
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 null. |
This operation will not block. The returned Task<TResult> object will complete once the entire response including content is read.
Windows 8 Release Preview, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 SP2, 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.