主题：鼠标停留在菜单按钮提示框的换行显示

只能换种方法

e.MenuButton.ToolTip = ""
Dim myToolTip As New Windows.Forms.ToolTip()
Dim a As object = BaseMainForm.controls("C1Ribbon1")
myToolTip.SetToolTip(a, "房间资料" & vbcrlf & "员工资料")