VB StackedArea图表显示0点

Question

我在VB.NET中创建了一个StackedArea图表，我有一些数据行包含所有0但只有一个值，例如10。

当我绘制这些值时，我遍历所有这些值，绘制零，然后继续下一个点。示例数据行如下所示：

"january",0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.03,0.10,0.00,0.00,0.67,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00

正如人们可以在蓝色行中看到的那样，即使值全部为0，仍然会显示某些内容（例如1px）。

我绘制这些系列的代码如下所示：

Chart.Series.Add(item(1))
For i = 2 To 25
    Dim cell = worksheet.Cells(item(7), i)
    Chart.Series(k - 1).Points.Add(cell.Value)
Next
Chart.Series(k - 1).ChartType = SeriesChartType.StackedArea
Chart.Series(k - 1).BorderWidth = 0

有谁知道发生了什么事？提前谢谢。