Adding a TimeSpan to a given DateTime

Question

I just want to add 1 day to a DateTime. So I wrote:

 DateTime date = new DateTime(2010, 4, 29, 10, 25, 00);
 TimeSpan t = new TimeSpan(1, 0, 0,          


        

Answer 1

DateTime wont work if DateTime obj datatype is "DateTime?" which takes accepts null values, in such case DateTime? dt = DateTime.Now;

        DateTime dateObj = new DateTime();

        dateObj = Convert.ToDateTime(dt.ToString());

        var Month3 = dateObj.AddMonths(3);`

Answer 2

You need to change a line:

date = date.Add(t);

Answer 3

A DateTime is immutable, but the Add and Subtract functions return new DateTimes for you to use.

DateTime tomorrow = DateTime.Now.AddDays(1);

Answer 4

DateTime values are immutable. The Add method returns a new DateTime value with the TimeSpan added.

This works:

Console.WriteLine("A day after the day: " + date.Add(t).ToString());

Answer 5

date.Add(t);

returns a modified DateTime and does not change the original instance on which you call the Add method on.

Answer 6

What is wrong with just doing date = date.AddDays(1)?