Question

I would really like some guidance on this problem i have been facing.
I am trying to find out the difference between 2 dates from textbox.

   protected void Button1_Click(object sender, EventArgs e)
{
    a = TextBox1.Text.ToString().Trim();
    b = TextBox2.Text.ToString().Trim();
    DateTime c = new DateTime();
    DateTime d = new DateTime();
    c = Convert.ToDateTime(a);
    d = Convert.ToDateTime(b);
    System.TimeSpan diffr = d - c;
    Response.Write(diffr.Days);
}

The above is the code i have written on Button Click event.
The problem is that, the code returns the difference wrong.

i.e if the diff between 12/02/2013 and 11/02/2013 is to be found, instead of returning 1
the code returns 30.
Similarly diff between 12/02/2013 and 10/02/2013 is to be found, instead of returning 2
the code returns 61.

I am using the Jquery DatePicker for selecting the date!
Kindly help as all my search has not yielded any solutions.

Answer 1

The only problem is the format of the date.
As you have written it is showing the month difference rather than date difference.
Try using datetime.parseexact and specify your format

Example:-

 string poop = "2005-12-14T14:35:32.1700000-07:00";
 DateTime poo = DateTime.ParseExact(poop,"yyyy-MM-ddTHH:mm:ss.fffffffzzz",        
                                System.Globalization.CultureInfo.InvariantCulture);

In your case

 string sDate1=TextBox1.Text.ToString().Trim();
 string sDate2=TextBox1.Text.ToString().Trim();

 DateTime dt1= DateTime.ParseExact(sDate1,"MM-dd-yyyy",        
                                System.Globalization.CultureInfo.InvariantCulture);
 DateTime dt2= DateTime.ParseExact(sDate2,"MM-dd-yyyy",        
                                System.Globalization.CultureInfo.InvariantCulture);

 System.TimeSpan diffr =dt2 - dt1;
 Response.Write(diffr.Days);

And it should work.