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  1. using System;
  2. using static System.Console;
  3.  
  4. public class Program {
  5. 	public static void Main() {
  6. 		var data = new DateTime(2015, 8, 15);
  7. 		WriteLine(FirstDayPreviousMonth(data));
  8. 		WriteLine(LastDayPreviousMonth(data));
  9. 		data = new DateTime(2015, 3, 15);
  10. 		WriteLine(FirstDayPreviousMonth(data));
  11. 		WriteLine(LastDayPreviousMonth(data));
  12. 		data = new DateTime(2016, 3, 15);
  13. 		WriteLine(FirstDayPreviousMonth(data));
  14. 		WriteLine(LastDayPreviousMonth(data));
  15. 	}
  16. 	public static DateTime FirstDayPreviousMonth(DateTime date) {
  17. 	    var mesAnterior = date.AddMonths(-1);
  18. 		return new DateTime(mesAnterior.Year, mesAnterior.Month, 1); 
  19. 	}
  20. 	public static DateTime LastDayPreviousMonth(DateTime date) {
  21. 	    var mesAnterior = date.AddMonths(-1);
  22. 		return new DateTime(mesAnterior.Year, mesAnterior.Month, DateTime.DaysInMonth(mesAnterior.Year, mesAnterior.Month));
  23. 	}
  24. }
  25.  
  26. //https://pt.stackoverflow.com/q/80330/101
Success #stdin #stdout 0.02s 16608KB
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Standard input is empty
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7/1/2015 12:00:00 AM
7/31/2015 12:00:00 AM
2/1/2015 12:00:00 AM
2/28/2015 12:00:00 AM
2/1/2016 12:00:00 AM
2/29/2016 12:00:00 AM
https://ideone.com/unUuhW
language:
C# (gmcs 5.20.1)
created:
4 years ago
visibility:
public

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