public static void Convert <T>(ref object src, out T value)
{
if ((src as string) != null)
{
var dv = new DvText((string)src);
value = (T)(object)dv;
}
else
{
value = (T)src;
}
}
public static Func <DvText[], DvText> GetAggFunction(AggregatedFunction func, DvText defaultValue)
{
switch (func)
{
case AggregatedFunction.Mean:
case AggregatedFunction.Count:
return((DvText[] arr) => { return DvText.NA; });
case AggregatedFunction.Sum:
return((DvText[] arr) => { return arr.Aggregate((a, b) => new DvText(a.ToString() + b.ToString())); });
case AggregatedFunction.Min:
return((DvText[] arr) => { return arr.Aggregate((a, b) => a.CompareTo(b) <= 0 ? a : b); });
case AggregatedFunction.Max:
return((DvText[] arr) => { return arr.Aggregate((a, b) => a.CompareTo(b) >= 0 ? a : b); });
default:
throw new NotImplementedException($"Unkown aggregated function '{func}'.");
}
}