引入代码：
1 [Designer("System.Windows.Forms.Design.ParentControlDesigner, System.Design", typeof(IDesigner))]
C#将用户控件作为容器控件
发布时间 2023-08-17 07:33:22作者: JIAXUN
引入代码：
1 [Designer("System.Windows.Forms.Design.ParentControlDesigner, System.Design", typeof(IDesigner))]