public static IEnumerable <DataRow> GetRows(this DataTableCollection tables, int tableNumber) => tables == null ? new List <DataRow>() : tables .GetTable(tableNumber) .Rows .Cast <DataRow>() .ToList();
public static IEnumerable <DataColumn> GetColumns(this DataTableCollection tables, int tableNumber) => tables == null ? new List <DataColumn>() : tables .GetTable(tableNumber) .Columns .Cast <DataColumn>() .ToList();