MDI编程常用窗体控制语句

from
   http://blog.csdn.net/abaowu/archive/2004/09/19/109770.aspx

//关闭当前活动子窗口
if (this.MdiChildren.Length > 0) { this.ActiveMdiChild.Dispose(); }
//关闭所有子窗口
for (int i = this.MdiChildren.Length; i > 0; ) this.MdiChildren[--i].Dispose();
//垂直平铺
this.LayoutMdi(MdiLayout.TileVertical);
//水平平铺
this.LayoutMdi(MdiLayout.TileHorizontal);
//窗口层叠
this.LayoutMdi(MdiLayout.Cascade);