Thank you for your prompt reply and the solution. There shouldn't be any difference between: Delete(0) and Delete(Start,Quantity,RemoveGap), as above. Appreciate the solution, but my collegue here suggested that the problem might be solved by a adding the points in a different way, not by improving ...

The files were posted using Steema's upload page. I think we've found a solution to the problem. You can figure out a solution without the full source code, just by looking at the code above. Hhowever, it would be interesting to see if you come up with the same solution, or maybe there's a better on...

Also tried it with the following settings:

theChart.Series[0].AutoRepaint := False;
theChart.Series[0].XValues.Order := loNone;

but it doesn't seem to make any difference.

Hi, We do implement scrolling of real-time FastLineSeries by adding points: theChart.Series[0].Add(thePoints.Value, strPointsDate1 ); Any by deleting points after initial 60 points are added: theChart.Series[0].Delete(0); Each point is being added once per second and after 60 seconds the first point...