subtracting time from 2 combo box

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hi,
i am having trouble in subtracting time in format dd/mm/yy from 2 combo box,if any 1 have a solution plz let me know...thanks

Posted 19-Oct-11 6:15am

keyrun maharjan

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**Orcun Iyigun** · Answer 1 · 2011-10-19T06:20:00

Your question is not clear enough. For subtracting datetime values please check the below examples.

C#

DateTime dt = new DateTime();
dt.AddDays(-1);  //Subtract one day
dt.AddHours(-1); //Subtract one hour
dt.AddMinutes(-1); //Subtract one minute
dt.AddMonths(-1); //Subtract one month

-or-

C#

DateTime value1 = new DateTime(2011, 12, 20);
DateTime value2 = new DateTime(2011, 1, 1);
TimeSpan span = newYears.Subtract(value1);

AlokZanwar1985 · Answer 2 · 2011-10-19T09:24:00

Solution 3

DateTime has its own property which is ToShortDate which exclude time from date for you below is an example.

DropDownList dd = new DropDownList();
dd.Items.Add(new ListItem(DateTime.Now.ToShortDateString()));

I think this will solve your issue

Posted 19-Oct-11 9:24am

AlokZanwar1985

OriginalGriff · Answer 3 · 2011-10-19T06:20:00

First thing to do: convert the two times to a DateTime - use DateTime.Parse or DateTime.TryParse:

C#

DataTime dt = DateTime.Parse("24/02/10");

You can then subtract one DataTime from another to yield a TimeSpan.

The alternative is not to use a combo box, but a DateTimePicker - which makes the job easier as it won't let the user enter a bad date.

subtracting time from 2 combo box

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