public static Type GetDigitalGaugeLayerPresentationType(
this DigitalGaugeLayerPresentationKind digitalGaugeLayerPresentationKind) =>
digitalGaugeLayerPresentationKind
.GetType()
.GetField(digitalGaugeLayerPresentationKind.ToString())
.GetCustomAttributes(typeof(DigitalGaugeLayerPresentationClassAttribute), false)
.Cast <DigitalGaugeLayerPresentationClassAttribute>()
.FirstOrDefault()?.InstanceType;
private static DigitalGaugeLayerPresentation Convert(
DigitalGaugeLayerPresentationKind digitalGaugeLayerPresentationKind)
{
if (digitalGaugeLayerPresentationKind == DigitalGaugeLayerPresentationKind.None)
{
throw new ArgumentException(
"Cannot create abstract type", nameof(digitalGaugeLayerPresentationKind));
}
var layerPresentationType = digitalGaugeLayerPresentationKind.GetDigitalGaugeLayerPresentationType();
var defaultCtorExists = layerPresentationType.GetConstructors()
.FirstOrDefault(ctor => ctor.GetParameters().Length == 0);
if (defaultCtorExists == null)
{
throw new ArgumentException(
"Default constructor doesn't exixts", nameof(digitalGaugeLayerPresentationKind));
}
return((DigitalGaugeLayerPresentation)Activator.CreateInstance(layerPresentationType));
}