主题：我想问下并列窗口如何设置窗口切换时能触发事件？

全局代码

Public Sub TabControl_SelectedIndexChanged(sender As Object, e As EventArgs)
   MessageBox.Show(sender.SelectedTab.Name & "|" & sender.SelectedTab.Text)

   msgbox(sender.SelectedTab.Controls(0).name)
End Sub

并列窗口AfterLoad事件

Dim tab As C1Command.C1DockingTab = e.Form.panel.parent.parent

Removehandler tab.SelectedIndexChanged, addressof TabControl_SelectedIndexChanged

addhandler tab.SelectedIndexChanged, addressof TabControl_SelectedIndexChanged