//public static IEnumerable<string[,]> GetDataTables(params IEnumerable[] collections)
//{
// if (collections == null) return null;
// List<string[,]> array = new List<string[,]>();
// foreach (IEnumerable collection in collections)
// array.Add(GetDataTable(collection));
// return array;
//}
public static string[,] GetDataTable <T>(IEnumerable <T> collection)
{
if (collection == null || !collection.Any())
{
return(new string[0, 0]);
}
var first = collection.First();
return
(first is Meter
? Meter.GetDataTableOfMeters(collection.Cast <Meter>())
: first is Document
? Document.GetDataTableOfDocuments(collection.Cast <Document>())
: first is Parametr
? Parametr.GetDataTableOfParametrs(collection.Cast <Parametr>())
: first is Reading
? Reading.GetDataTableOfReadings(collection.Cast <Reading>())
: first is Tariff
? Tariff.GetDataTableOfTariffs(collection.Cast <Tariff>())
: first is TimeSpan
? TimeSpan.GetDataTableOfTimeSpans(collection.Cast <TimeSpan>())
: first is Type
? Type.GetDataTableOfTypes(collection.Cast <Type>())
: first is User
? User.GetDataTableOfUsers(collection.Cast <User>())
: new string[0, 0]);
}