The step calculations are actually part of a complex code block, which also calculates the min and max value and takes into account different parameters including the chart size. However, you can easily calculate the Step value you need, given that you already have the min and max value. Just divide the difference by the number of steps you need:
step = (max - min) / 5;
I should also mention, that with AutoRange=true, by default RadChart adds an additional step on the top of AxisY, but this can be disabled. The AxisY.ExtendDirection property controls this behavior. Set it to AxisExtendDirection.None
and the axis will be auto-calculated to cover the data with no extension. You can also set the IsZeroBased property to true, so that the Y axis always starts from zero.
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items.