DateTime.now减去数据库中的值

Question

I need to be able to get the difference from the current date with the date from my database. If the difference is 30, I need to display a expiry date message. My code block looks as such:

var expiryDate = DateTime.Now - DateTime.Parse(user[3]);

The thing is, this returns some weird numbers which I can't seem to manage. How would I go about getting just the number of days and then check if it is 30?

Thanks for having a look guys!

Answer 1

DateTime dt1 = DateTime.Now;
DateTime dt2 = DateTime.Parse(user[3]);

TimeSpan ts = dt1 - dt2;

int days = ts.Days;

if (days == 30){
   //do something
}

Answer 2

(DateTime.Now - DateTime.Parse(user[3])).TotalDays //this will give you the days.

Answer 3

var timespan = DateTime.Now - DateTime.Parse(user[3]);
var days = timespan.Days;

Answer 4

System.TimeSpan diffResult = dt1  - dt2;

if(diffResult < 0)
{
   //your code
}

Answer 5

When you subtract two DateTime instances you get a Timespan .

Validate your value against the TotalDays property of this timespan

var expiryDate = DateTime.Now - DateTime.Parse(user[3]);
expiryDate.TotalDays > 30 // check in this fashion