Hi Andrew,

The easiest way to do that is to enable docking and turn off padding and margins - for example:

   NCartesianChart chart = (NCartesianChart)nChartControl1.Charts[0];

   // set to BoundsMode.Fit if you want the chart to retain aspect or BoundsMode.Stretch if the aspect can change
   chart.BoundsMode = BoundsMode.Fit;
   chart.Dock = DockStyle.Fill;

   // set zero padding & margins
   chart.Margins = new NMarginsL(0, 0, 0, 0);
   chart.Padding = new NMarginsL(0, 0, 0, 0);

   // in case of 3D configure chart to fit axis labels in the bounding box
   chart.Fit3DAxisContent = true;

Note that when using BoundsMode.Fit the chart will retain the aspect specified by the Width, Height, Depth properties of NCartesianChart. Otherwise (Stretch mode) the aspect will vary and the chart will try to occupy as much space as possible.

Hope this helps - questions or comments - please feel free...

I'm using a surface chart with the legends and axis turned off. I'd like the chart to fill the entire control (which may get resized as the parent window changes size). I can see how to set the width & height using model units but is there any way I can get the chart to fill the entire control?

Andrew