Get Activity Instance

IWFWorkflowService svc = GetWorkflowService();
string activityInstanceID = ..// activity instance

try
	{
    WFBaseActivityInstance activityInstance =
    _svc.GetActivityInst(activityInstanceID);
    Console.WriteLine("DisplayName" + activityInstance.DisplayName);
    Console.WriteLine("ID" + activityInstance.ID);
    Console.WriteLine("CompletedDate" + activityInstance.CompletedDate);
    Console.WriteLine("DueDate" + activityInstance.DueDate);
	}

catch( Exception ex)
	{
    Console.WriteLine("Failed! " + ShUtil.GetSoapMessage(ex));
	}