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Delete the selected constant line on the graph


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PS: I didn't read the subject carefully, seems that the line you are

referring to is a constant line.

However, constant lines don't have a "selected" state, so the attached image

got me confused.

You can delete a constant line from the chart just by making it invisible.

For the look of the chart I'm assuming you are using Chart FX 5.x, the code

to hide a constant line is:

ChartFX1.ConstantLine(0).Style = ChartFX1.ConstantLine(0).Style Or CC_HIDE

ChartFX1.Refresh

As for the context menu, Constant-Lines are not involved in the HitTest so

you can not that a constant line was "hit". This is a new feature we

introduced in Chart FX 6.0.

--

FP

Software FX

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