DateRange with nullable optional parameters - c#

OptionalDateRange.cs

public DateTime? From { get; set; }
public DateTime? To { get; set; }

readonly DateTime minFrom = new DateTime(2000, 1, 1);
readonly DateTime maxTo = new DateTime(2100, 1, 1);
public DateTime SafeFrom() =>
	From.GetValueOrDefault(To.GetValueOrDefault(minFrom));
public DateTime SafeTo() =>
	To.GetValueOrDefault(From.GetValueOrDefault(maxTo));