Thanks

I can suppress the series marks if the plotted value is zero by using the OnGetSeriesMark event. But when printing / exporting, the zero values come back. How can i suppress them for printing as well?

Its sorted now (i think :wink: ) - my series marks style was set to 'label' - and i didnt realise that adding points using:series(x).add value, str, vbRed was setting the label to 'str'. i changed the mark style to 'value' and now OK. Doesnt explain why on Print & screen display, that the values rat...

Export also does this - i.e. call to TChart1.Export.ShowExport, save chart as BMP. Open BMP - the series marks are set to the x axis labels.

Just upgraded to v 5.0.6.0 and problem still occurs.

Yes - TChart1.Printer.ShowPreview I'm using TChart v5.0.3.1 - I'm aware there is an update but previews have worked OK before - there have been some code changes but nothing that should affect print preview. Code snippets: With TChart1 .Legend.Visible = False .Axis.Bottom.Labels.OnAxis = False .Axis...

When i print a chart it comes out OK, with the series marks showing the y axis values as expected. But when i do a print preview, the chart shows the x axis values instead! All i'm doing is either:

TCHart.Printer.PrintChart

or

TCHart.Printer.Preview