使用反射来管理子程序的主窗体

        string path;//程序集路径
        object myo;
        string typeForm;//窗体类型，是Form1或者Form2

        public ChildMsg(string pathAss, string typeForm)
        {
            this.path = pathAss;
            this.typeForm = typeForm;
        }
        //初始化
        private bool InitIt()
        {
            try
            {
                if (myo == null)
                {
                    Assembly mainAss = Assembly.LoadFrom(path);
                    myo = mainAss.CreateInstance(typeForm);
                    return true;
                }
            }
            catch
            {
                return false;
            }
            return false;
        }
        //打开方法
        public void OpenIt()
        {
            if (InitIt())
            {
                MethodInfo mi = myo.GetType().GetMethod("Show", new Type[] { });
                mi.Invoke(myo, null);
            }
        }
        //显示与隐藏
        public void Show(bool yes)
        {
            PropertyInfo pi = myo.GetType().GetProperty("Visible");
            pi.SetValue(myo, yes, null);
        }
        //关闭
        public void CloseIt()
        {
            MethodInfo mi = myo.GetType().GetMethod("Close", new Type[] { });
            mi.Invoke(myo, null);
        }