Values for the visualizer calibration.
property MinValue: Variant;
property MaxValue: Variant;
property AutoMinValue: Boolean;
property AutoMaxValue: Boolean;
To show values, value visualizers and color changers need calibration, i.e. they must know minimal and maximal values.
For example, the pie visualizer displays an empty circle for the minimal value, and a full circle for the maximal value.
By default, these properties have the following initial values: MinValue=MaxValue=Null, AutoMinValue=AutoMaxValue=True. This means that MinValue and MaxValue are calculated automatically on the set of values to visualize.
You can assign some initial numeric value to MinValue (or MaxValue). In this case, they still will be calculated automatically, but the result cannot be greater than the initial value of MinValue (or less than the initial value of MaxValue).
If you assign AutoMinValue (or AutoMaxValue) = False, the report generator will not change them. In this case, you must assign a numeric value to MinValue (or MaxValue).
If you assign MinValue and MaxValue, you must ensure that MinValue < MaxValue.
All values less than MinValue are treated as MinValue, all values greater than MaxValue are treated as MaxValue.
Null, Null, True, True (but these values may be different in some visualizers)