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POHow do I create a generic converter for units of measurement in C#?
 

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  1. POHow do I create a generic converter for units of measurement in C#?
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    <p>I have been trying to learn a bit more about delegates and lambdas while working on a small cooking project that involves temperature conversion as well as some cooking measurement conversions such as Imperial to Metric and I've been trying to think of a way to make an extensible Unit converter.</p> <p>Here is what I started with, along with code comments on what some of my plans were. I have no plan to use it like the below, I was just testing out some features of C# I don't know very well, I am also unsure how to take this further. Does anyone have any suggestions on how to create what I am talking about in the comments below? Thanks</p> <pre><code>namespace TemperatureConverter { class Program { static void Main(string[] args) { // Fahrenheit to Celsius : [°C] = ([°F] − 32) × 5⁄9 var CelsiusResult = Converter.Convert(11M,Converter.FahrenheitToCelsius); // Celsius to Fahrenheit : [°F] = [°C] × 9⁄5 + 32 var FahrenheitResult = Converter.Convert(11M, Converter.CelsiusToFahrenheit); Console.WriteLine("Fahrenheit to Celsius : " + CelsiusResult); Console.WriteLine("Celsius to Fahrenheit : " + FahrenheitResult); Console.ReadLine(); // If I wanted to add another unit of temperature i.e. Kelvin // then I would need calculations for Kelvin to Celsius, Celsius to Kelvin, Kelvin to Fahrenheit, Fahrenheit to Kelvin // Celsius to Kelvin : [K] = [°C] + 273.15 // Kelvin to Celsius : [°C] = [K] − 273.15 // Fahrenheit to Kelvin : [K] = ([°F] + 459.67) × 5⁄9 // Kelvin to Fahrenheit : [°F] = [K] × 9⁄5 − 459.67 // The plan is to have the converters with a single purpose to convert to //one particular unit type e.g. Celsius and create separate unit converters //that contain a list of calculations that take one specified unit type and then convert to their particular unit type, in this example its Celsius. } } // at the moment this is a static class but I am looking to turn this into an interface or abstract class // so that whatever implements this interface would be supplied with a list of generic deligate conversions // that it can invoke and you can extend by adding more when required. public static class Converter { public static Func&lt;decimal, decimal&gt; CelsiusToFahrenheit = x =&gt; (x * (9M / 5M)) + 32M; public static Func&lt;decimal, decimal&gt; FahrenheitToCelsius = x =&gt; (x - 32M) * (5M / 9M); public static decimal Convert(decimal valueToConvert, Func&lt;decimal, decimal&gt; conversion) { return conversion.Invoke(valueToConvert); } } } </code></pre> <p><strong>Update:</strong> Trying to clarify my question:</p> <p>Using just my temperature example below, how would I create a class that contains a list of lambda conversions to Celsius which you then pass it a given temperature and it will try and convert that to Celsius (if the calculation is available)</p> <p>Example pseudo code:</p> <pre><code>enum Temperature { Celcius, Fahrenheit, Kelvin } UnitConverter CelsiusConverter = new UnitConverter(Temperature.Celsius); CelsiusConverter.AddCalc("FahrenheitToCelsius", lambda here); CelsiusConverter.Convert(Temperature.Fahrenheit, 11); </code></pre>
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