Automatically retrieve Type based on Unit

[mariuszhermansdorfer]

Is your feature request related to a problem? Please describe.

I'm working on UI elements (sliders, steppers, etc.), where users can define the unit type of each control at runtime.

Describe the solution you'd like

I'd like to automatically retrieve the type (Length, Angle, Scalar, etc.) based on the chosen unit LengthUnit.Meter, AngleUnit.Degree, etc.
I need this information to parse quantities from input strings:

            if (Quantity.TryParse(_type, "0.31 km", out IQuantity quantity))
                _displayText.Text = quantity.ToUnit(_unit).ToString();

Describe alternatives you've considered

My current workaround is based on manipulating strings:

            var typeName = _unit.GetType().Name;
            typeName = typeName.Remove(typeName.Length - "Unit".Length);
            _type = Type.GetType($"UnitsNet.{typeName}, UnitsNet");

[angularsen]

Hi, it's not super straight forward to discover, but you can do it like this:

Enum unit = LengthUnit.Centimeter;
Type quantityType = Quantity.From(1, unit).GetType();


// 10 cm
IQuantity q = Quantity.Parse(quantityType, "100 mm").ToUnit(unit);

[angularsen]

Something we could add that maybe would make this a bit more discoverable:

UnitInfo unitInfo = Quantity.GetUnitInfo(LengthUnit.Centimeter);

Type quantityType1 = Quantity.ByName[unitInfo.QuantityName].Type; // Add new Type property on QuantityInfo
Type quantityType2 = unitInfo.QuantityInfo.Type; // Also add new QuantityInfo property on UnitInfo

[mariuszhermansdorfer]

Thanks for a prompt response @angularsen!

The workaround you suggested works very well!

[angularsen]

Glad to hear it!