Question

1. I need format type DateTime into: “dd/mm/yyyy”.
2. I want to add, sub, compare between 2 DateTime.
   ex: 23/12/1991 > 2/1/1990.
   23/12/1991 – 20(days) = 3/12/1991
   Could you help me, please.! Thank very much.! ^^

Answer 1

To get that format use:

yourDate.ToString("dd/MM/yyyy);

To add to a date:

yourDate.AddDays(15);
yourDate.AddMonths(3);

and so on

To subtract from a date

yourDate.AddDays(-12);
yourDate.AddMonths(-3); 

and so on

And any date objects can be compared with the normal > < <= >= operators.