difference (in days) of two dates

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Hi, misters

which the best method for get the difference (in days) of two dates. The
hour (hh:mm) don't mind, would be 00:00 for all dates.
1.)
fechaUno.Substract(fechaDos).Days

2.)

int desplazamientoFechaActual = fechaLaborable.DayOfYear -
fechaActual.DayOfYear;

3.) DateTime now = DateTime.Now;
DateTime seed = Convert.ToDateTime("2006/01/01");

TimeSpan diff = now - seed;
int result = diff.TotalDays;

4.) Another ??

Any help about it ? Thanks in advance. Greetings.

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[Hans Kesting]

Hi, misters

>
which the best method for get the difference (in days) of two dates.
The hour (hh:mm) don't mind, would be 00:00 for all dates.

1.)
fechaUno.Substract(fechaDos).Days
2.)

int desplazamientoFechaActual = fechaLaborable.DayOfYear -
fechaActual.DayOfYear;

3.) DateTime now = DateTime.Now;
DateTime seed = Convert.ToDateTime("2006/01/01");
TimeSpan diff = now - seed;
int result = diff.TotalDays;
4.) Another ??

Any help about it ? Thanks in advance. Greetings.

method 2 gives a wrong answer when the dates are in different years.
methods 1 & 3 return the same results (when you use the same dates)

Hans Kesting