视频讲解地址 https://www.bilibili.com/video/BV1Wv4y1G7M9
效果图
步骤如下
1、父窗体窗属性设置
IsMdiContainer = true;
2、嵌入的子窗体添加
Form2 form2 = new Form2(); form2.Show(); form2.MdiParent = this;