/// <remarks/>
 public void UpdateFailoverAsync(UpdateFailoverRequestType UpdateFailoverRequest, object userState) {
     if ((this.UpdateFailoverOperationCompleted == null)) {
         this.UpdateFailoverOperationCompleted = new System.Threading.SendOrPostCallback(this.OnUpdateFailoverOperationCompleted);
     }
     this.InvokeAsync("UpdateFailover", new object[] {
                 UpdateFailoverRequest}, this.UpdateFailoverOperationCompleted, userState);
 }
 /// <remarks/>
 public void UpdateFailoverAsync(UpdateFailoverRequestType UpdateFailoverRequest) {
     this.UpdateFailoverAsync(UpdateFailoverRequest, null);
 }