The area outside of the 3-sigma limits is the PlotBackground color. The area between 2- and 3-sigma is zone 0. Make these two calls before any limits are defined.
this.PrimaryChart.SetZoneColor(0, Color.Yellow);
this.PrimaryChart.PlotBackground.SetColor(Color.Red);
As in:
this.PrimaryChart.SetZoneColor(0, Color.Yellow);
this.PrimaryChart.PlotBackground.SetColor(Color.Red);
// initial limits, replaced with auto-calculated values
double ll = 74, hh = 76, target = 75;
// limitcheck = false means to only check alarms at +-3 sigma limits, not other limits, even though they are displayed.
bool limitcheck = false;
this.PrimaryChart.Add3SigmaControlLimits(target, ll, hh, limitcheck);
this.PrimaryChart.ControlLimitLineFillMode = true;
Sorry, there is no option in the software to display min and max lines for the values of each sample subgroup.
