System.Net.Browser.PolicyBasedWebRequest.BeginGetResponse C# (CSharp) Метод

		public override IAsyncResult BeginGetResponse (AsyncCallback callback, object state)
		{
			// Console.WriteLine ("{0} {1} {2}", GetType (), method, uri);
			// we're not allowed to reuse an aborted request
			if (IsAborted)
				throw new WebException ("Aborted", WebExceptionStatus.RequestCanceled);

			// under SL the callback MUST call the EndGetResponse, so having no callback is BAD
			// this also means that faking a synch op using EndGetReponse(BeginGetReponse(null,null)) does NOT work
			if (callback == null)
				throw new NotSupportedException ();

			// we cannot issue 2 requests from the same instance
			if (async_result != null)
				throw new InvalidOperationException ();

			// this is the "global/total" IAsyncResult, it's also the public one
			async_result = new HttpWebAsyncResult (callback, state);

			GetResponse (this.Method, uri, true);
			return async_result;
		}