public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
Unit unit;
double doubleValue;
if (value is PhysicalValue)
{
PhysicalValue physicalValue = (PhysicalValue)value;
unit = physicalValue.Unit;
doubleValue = physicalValue.Value;
}
else if (value is Quantity)
{
Quantity quantity = (Quantity)value;
unit = quantity.Unit;
doubleValue = quantity.Value;
}
else if (value is double)
{
unit = DefaultUnit;
doubleValue = (double)value;
}
else
{
return(null);
}
return(PhysicalValue.Format(doubleValue, unit, Format, MinimumPrefix, MaximumPrefix, DefaultPrefix, NumberOfDigits, Precision, MaximumMagnitude));
}
/// <summary>
/// Formats the value with the format options of the control.
/// </summary>
/// <param name="value">The value.</param>
protected internal string FormatValue(double value)
{
var displayedUnit = Unit;
var precision = Precision;
var maxMagnitude = MaximumMagnitude;
if (DisplayUnit.HasValue && DisplayUnit.Value != Unit)
{
value = Conversions.Convert(value, Unit, DisplayUnit.Value);
precision = Conversions.Convert(Precision, Unit, DisplayUnit.Value);
maxMagnitude = Conversions.Convert(MaximumMagnitude, Unit, DisplayUnit.Value);
displayedUnit = DisplayUnit.Value;
}
var digits = NumberOfFractionDigits;
if (PhysicalValueFormat == PhysicalValueFormat.SIUsingSignificantDigits)
{
digits = NumberOfSignificantDigits;
}
return(PhysicalValue.Format(value, displayedUnit, PhysicalValueFormat, MinimumSIPrefix, MaximumSIPrefix, ParsePrefix, digits, precision, maxMagnitude));
}