How to get Days

[pskvenkat]

Hi This is venkat, i am using asp.net(C#)2008 .i am the beginner for .net, i want to get the Number of days, it

Ex
Days= FromDate- ToDate ? how will i get answer like 3 days

[Plater]

DateTime objects can be subtracted from each other.
The result can be cast to a TimeSpan object which contains properties for telling you the total number of days in between the two dates.

[kunal pawar]

try following code

System.DateTime dtTodayNoon = new System.DateTime (2006, 9, 13, 12, 0, 0);

System.DateTime dtTodayMidnight = new System.DateTime (2006, 9, 13, 0, 0, 0);

System.TimeSpan diffResult = dtTodayNoon.Sub tract(dtYestMid night);

Response.Write( "Yesterday Midnight - Today Noon = " + diffResult.Days );

Response.Write( "Yesterday Midnight - Today Noon = " + diffResult.Tota lDays);

[Curtis Rutland]

[CODE=cpp]
//c#
DateTime date1 = new DateTime(2008, 4, 11, 12, 0, 0);
DateTime date2 = new DateTime(2008, 4, 14, 23, 0, 0);
TimeSpan difference = date2.Subtract( date1);
int days = difference.Days ;
double fractionalDays = difference.Tota lDays;
[/code]
difference.Days will give you the integer number of days, difference.Tota lDays will give you a fractional number.

[Plater]

TotalDays will be the one you want to use. Days is just the "days portion".
If the difference between the two dates is 1year and 2 days, "Days" will be 2 while "TotalDays" will be like 367 or so.

[Curtis Rutland]

TotalDays will be the one you want to use. Days is just the "days portion".
If the difference between the two dates is 1year and 2 days, "Days" will be 2 while "TotalDays" will be like 367 or so.

I don't think so. I tested this:
[code=cpp]
//code is c#
DateTime date1 = new DateTime(2006, 4, 11, 12, 0, 0);
DateTime date2 = new DateTime(2008, 4, 14, 23, 0, 0);
TimeSpan difference = date2.Subtract( date1);
int days = difference.Days ;
double totalDays = difference.Tota lDays;
Console.WriteLi ne(days.ToStrin g() + "\n" + totalDays.ToStr ing());
[/code]

And the console output is:
734
734.45833333333 3
I think that the only difference is the data type.

[Plater]

Hmm interesting.
I had only really tested this with the time variables.
I was trying to determine if enough seconds had passed and discovered that .Seconds would bump up .Minutes and enver go over 59, while TotalSeconds would give an accurate account.
I had assumed the rest of the time/date variables worked the same way.

DateTime date1 = new DateTime(2007, 12, 11, 12, 0, 0);
DateTime date2 = new DateTime(2008, 1, 14, 23, 0, 1);
TimeSpan difference = (TimeSpan)(date2-date1);

Console.WriteLine(difference.Seconds.ToString() + "\n" + difference.TotalSeconds.ToString());

And the output:
>1
>2977201