[RESOLVED] subtract a year from datetime.now

[Crash893]

Hi all

I am trying to make a string that i can put into a sql query that will retrive one years worth of records

i have the code

System.DateTime date2 = new System.DateTime();
date2 = DateTime.Now;
textBox1.Text = date2.ToString("MM/dd/yyyy HH:MM:ss");
date2.AddYears(-1);
textBox2.Text = date2.ToString("MM/dd/yyyy HH:MM:ss");

but it just doesnt seem to be working so im thinking my addyears(-1) is wrong

can anyone give me a hint to point me in the right direction?

[nmadd]

.AddYears(-1) is correct. The problem is this line:

date2.AddYears(-1);

What are you doing with the result of this line? It just disappears.

            DateTime date2 = DateTime.Now;
            this.textBox1.Text = date2.AddYears(-1).ToString("MM/dd/yyyy HH:MM:ss");

[szlamany]

What happens if you subtract a year from 02/29/2000?

Won't that blow up?

[effekt26]

What happens if you subtract a year from 02/29/2000?

Won't that blow up?

Im pretty sure the inbuilt logic will return a value of 02/28/1999...although i have been known to be wrong before...causing things to blow up

[Crash893]

.AddYears(-1) is correct. The problem is this line:

date2.AddYears(-1);

What are you doing with the result of this line? It just disappears.

            DateTime date2 = DateTime.Now;
            this.textBox1.Text = date2.AddYears(-1).ToString("MM/dd/yyyy HH:MM:ss");

that works

rate = rate +1

[jmcilhinney]

Just note that that format is displaying the month in place of the minute. Minutes is lower case "m".

[nmadd]

Im pretty sure the inbuilt logic will return a value of 02/28/1999...although i have been known to be wrong before...causing things to blow up

You're right. It seems to work just fine.

[Crash893]

Just note that that format is displaying the month in place of the minute. Minutes is lower case "m".

as always good catch