calculate no of days betwwn 2 dates

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if i select date 11/10/2011 in startdate textbox & 12/10/2011 in enddate textbox, then in days textbox it should display 2. but i am getting 1, pls help me.

C#

DateTime startDate = Convert.ToDateTime(txtStartDate.Text);
DateTime endDate = Convert.ToDateTime(txtEndDate.Text);

//
//if (!(endDate < startDate)) - [edit] replaced with below if
if (endDate > startDate)
{
    TimeSpan ts = endDate.Subtract(startDate);
    txtTotalDays.Text = ts.Days.ToString();
}
else
{
    Response.Write("End Date should be higher than Start Date");
}

Posted 10-Oct-11 23:48pm

jayanthik

Updated 10-Oct-11 23:53pm

Reiss

v2

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Comments

Xeshan Ahmed 11-Oct-11 5:55am

why it should display 2 ?

4 solutions

Solution 4

(startDate  - endDate ).TotalDays

Posted 10-Oct-11 23:55pm

Ram Balak Sharma

Updated 10-Oct-11 23:56pm

v3

Solution 3

I'd just use a TimeSpan class.

TimeSpan ts = endDate.Subtract(startDate);

Posted 10-Oct-11 23:54pm

Abhinav S

Solution 2

Surely the difference between today and tomorrow is one day

Posted 10-Oct-11 23:54pm

Reiss

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OriginalGriff · Accepted Answer · 2011-10-10T23:53:00

No, it shouldn't. If you take any two numbers, you will get the same result. 12 - 11 = 1. It doesn't matter if it is two dates, or the number of beans in two tins.

If you want the number to be inclusive of partial days, you will have to add the one on manually:

C#

TimeSpan ts = endDate.Subtract(startDate);
txtTotalDays.Text = (ts.Days + 1).ToString();