public static List <MeasurementSystemModel> CreateMeasurementSystemData()
{
var wa = new DistanceUnitModel("Wa", "wa");
var sok = new DistanceUnitModel("Sok", "sok");
var sqWa = new AreaModel("Square Wa", "sqwa", 1, wa);
var ngaan = new AreaModel("Ngaan", "ngaan", 10, wa);
var rai = new AreaModel("Rai", "rai", 20, wa);
var waSok = new UnitConversionRate(wa, sok, 4);
var measurementSystem = new MeasurementSystemModel
{
Name = "Thai Area Measurement System",
DistanceUnits = new List <DistanceUnitModel> {
wa, sok
},
Areas = new List <AreaModel> {
sqWa, ngaan, rai
},
};
AllDistanceUnits = new List <DistanceUnitModel> {
wa, sok
};
UnitConversionRates = new List <UnitConversionRate> {
waSok
};
_measurementSystem = new List <MeasurementSystemModel> {
measurementSystem
};
return(_measurementSystem);
}
public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
{
var fromDistanceUnit = values[0];
var toDistanceUnit = values[1];
double?distance = (double?)values[2];
UnitConversionRate conversionRate = TestData.UnitConversionRates.SingleOrDefault(rate =>
rate.FromDistanceUnit == fromDistanceUnit && rate.ToDistanceUnit == toDistanceUnit);
if (conversionRate != null)
{
return(distance * conversionRate.ConversionRate);
}
conversionRate = TestData.UnitConversionRates.SingleOrDefault(rate =>
rate.FromDistanceUnit == toDistanceUnit && rate.ToDistanceUnit == fromDistanceUnit);
if (conversionRate != null)
{
return(distance / conversionRate.ConversionRate);
}
return(distance ?? 0);
}
