SuperMap.Web.OGC.GetWFSCapabilities.ProcessAsync C# (CSharp) Méthode

        public void ProcessAsync()
        {
            this.ProcessAsync(null);
        }

 private void getWFS_Click(object sender, RoutedEventArgs e)
 {
     GetWFSCapabilities getCapabilities = new GetWFSCapabilities(url);
     getCapabilities.ProcessCompleted += new EventHandler<ResultEventArgs<List<WFSFeatureType>>>(getCapabilities_ProcessCompleted);
     getCapabilities.ProcessAsync();
     getCapabilities.Failed += new EventHandler<FailedEventArgs>(ServiceError_Failed);
 }