public override double ConvertToPercent(object value)
{
if (value == null)
{
return(double.NaN);
}
double num = Convert.ToDouble(value, (IFormatProvider)CultureInfo.InvariantCulture);
Range <double> fromRange = new Range <double>(this.ActualMinimum, this.ActualMaximum);
double precision1 = DoubleHelper.GetPrecision(num, fromRange.Minimum, fromRange.Maximum);
if (DoubleHelper.LessWithPrecision(num, fromRange.Minimum, precision1) || DoubleHelper.GreaterWithPrecision(num, fromRange.Maximum, precision1))
{
return(double.NaN);
}
double precision2 = DoubleHelper.GetPrecision(1, new double[0]);
return(DoubleHelper.RoundWithPrecision(RangeHelper.Project(fromRange, num, Scale.PercentRange), precision2));
}