jarbas@cemi.eng.br

and chart.Series[i2].Gallery = Gallery.Curve;

hi Juan. thanks for your answer. It is a very large application and difficult to replicate. This next screen is the same data presented by a previous compilation of the source code. Note: No source lines for the graphic parts have been changed. But inexplicably the lines started to appear without interpolation following a zero order holder pattern. what property controls this? I tried using this. chart1.Series.Gallery = Gallery.Lines;

My application creates the graphics curves in the same way but some curves have steps and others show interpolated curves. How do I eliminate these steps and make all curves continuous. ?