更改MDI子项[VB.NET]上的组件属性

Question

如果我想要打开所有打开的子窗口的背景颜色，我会使用它：

For Each chld As Form In Me.MdiChildren
   chld.BackColor = Color.LightGray
Next chld

但是如何修改子表单上找到的文本框的颜色？

感谢

Answer 1

For Each chld As frmChild In Me.MdiChildren
   chld.BackColor = Color.LightGray
Next chld

我的错误:(