I'm unable to serialize the chart template. I get the below error.

Stream stream = new MemoryStream();
...Chart.Export.Template.Serialize(stream);

"Type 'Steema.TeeChart.WPF.Drawing.Graphics3DWPF' in Assembly 'TeeChart.WPF, Version=4.2019.5.15, Culture=neutral, ... is not marked as serializable."

Thanks Marc, that worked for me.

For a WPF chart (2D line chart with multiple series), how do you make it so the grid lines are the same (aligned) for the left and right axis with 2 variables - say pressure on left axis and elevation on right axis?