public void AddActivity(ActivityControl activity)
        {
            if (string.IsNullOrEmpty(activity.Name))
            {
                activity_n    = activity_n + 1;
                activity.Name = "activity" + activity_n.ToString();
            }

            if (NameList.Exists(p => p == activity.Name))
            {
                return;
            }


            this.myDesigner.Children.Add(activity);
            ActivityControlList.Add(activity);
            activity.刷新事件 += new EventHandler(activity_刷新事件);
            activity.连接事件 += new EventHandler(activity_连接事件);
            activity.设计器   = this;
            activity.显示分支选项();
            RefurbishActivityPath();
        }
        public void AddActivity(ActivityControl activity)
        {
            if (string.IsNullOrEmpty(activity.Name))
            {
                activity_n = activity_n + 1;
                activity.Name = "activity" + activity_n.ToString();

            }

            if (NameList.Exists(p => p == activity.Name))
            {
                return;
            }

            this.myDesigner.Children.Add(activity);
            ActivityControlList.Add(activity);
            activity.刷新事件 += new EventHandler(activity_刷新事件);
            activity.连接事件 += new EventHandler(activity_连接事件);
            activity.设计器 = this;
            activity.显示分支选项();
            RefurbishActivityPath();
        }