VBA 条件行格式

Question

我有一张包含多个系列的图表。其中有一个系列集合，标题为“上限”。如果图表中的任何其他系列超过该阈值，则需要将其更改为虚线。运行此代码时，我收到运行时错误 438

Sub dottedlines()


Dim mySrs As Series
Dim nPts As Long
Dim d As DataLabel
Dim i As Integer
Dim srs As SeriesCollection

i = 1

For Each mySrs In ActiveChart.SeriesCollection

If mySrs.Points(i + 1).Value > srs("Upper Limit").Points(i + 1).Value Then

With mySrs.Format.Line
        .Visible = msoTrue
        .DashStyle = msoLineSysDash
        .Weight = 1.25
End With

i = i + 1

End If

Next mySrs

End Sub