private void ShowRange(string from, string to)
{
DateTime date1 = StringToDateConverter(from);
DateTime date2 = StringToDateConverter(to);
query.ShowRange(date1, date2).ForEach(x =>
{
Console.WriteLine("{0} {1}: {2} szt.", x.Date, x.NameOfRecipe, x.SumOfPreparedBatches);
});
//Console.WriteLine(date1.ToString());
//Console.WriteLine(date2.ToString());
}