Arun Kumar Arun Kumar - 5 months ago 23
Vb.net Question

How to add/remove custom labels from the axis

I am trying to remove custom labels from the axis. However, I am unable to do so. Currently, I am using the below mentioned code to add custom labels.

For i As Double = Chart1.ChartAreas("ChartArea1").AxisY2.Minimum To Chart1.ChartAreas("ChartArea1").AxisY2.Maximum Step Chart1.ChartAreas("ChartArea1").AxisY2.Interval
If i = Chart1.ChartAreas("ChartArea1").AxisY2.Minimum Then
If i = 0 Then
Chart1.ChartAreas("ChartArea1").AxisY2.CustomLabels.Add(i, i + 0.01, CStr(i))
Else
Chart1.ChartAreas("ChartArea1").AxisY2.CustomLabels.Add(i, i + 0.01, CStr(i) + " (" + CStr(Math.Round(20 * Math.Log10(i / 100), 1)) + " in dB)")
End If
End If
Chart1.ChartAreas("ChartArea1").AxisY2.CustomLabels.Add(i, i - 0.01, CStr(i) + " (" + CStr(Math.Round(20 * Math.Log10(i / 100), 1)) + " in dB)")
Next


This is the only code that I know how to add custom labels, as I need to add a certain value along with the axis values. But I can't seem to remove it when I try to plot another file, even after disabling the axis. It reappears from enabling the axis again. The new values would not even appear.

Kindly help me in removing the already added custom labels and add new ones. If there is any better way of adding and changing custom axis labels, please do let me know as well.

Answer

You can remove the labels you have added by calling the code below:

Chart1.ChartAreas("ChartArea1").AxisY2.CustomLabels.Clear()

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