Why is vertical bar splitting across X Axis in System.Windows.Forms.DataVisualization.Charting.Chart

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C#

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.NET

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Hi All,

I was wondering if anyone knows why a series would split across two x axis values when plotting a "Column" type.

The split occurs along the Y axis at 0. (Both positive and negative are shown)

<pre lang="vb">' Add series
    chartRun.Series.Add("Master")
    chartRun.Series("Master").ChartType = SeriesChartType.Column
    ' Set Column width as percentage of graph width
    chartRun.Series("Master")("PointWidth") = "0.005"
    chartRun.Series("Master").Color = Color.Gold
    chartRun.Series("Master").IsVisibleInLegend = False</pre>

The series is populated like this:

If (mr.Mastered) Then
             chartRun.Series("Master").Points.AddXY(counter, YMin)
             chartRun.Series("Master").Points.AddXY(counter, YMax)
         End If

Even though "counter" may be 1 for example the bar splits across X values 1 and 2 on the chart.

Does anyone know how i can resolve this split to make just one vertical line spanning a range that is positive and negative across the Y Axis.

Alternatively if anyone knows another way of simply drawing a vertical line over a graph that spans both - and + values this would be perfect.

Thanks in advance

George