Hi how to generate a random date ?

Question

2.50/5 (2 votes)

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VB

I want to generate randomly date in pastyears

VB

I want to generate randomly date in future

VB

I want to generate randomly date in both

Posted 30-Jun-11 19:25pm

suryaswathi

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2 solutions

Solution 2

Here is a link you should look at.

Posted 30-Jun-11 19:33pm

RakeshMeena

Comments

Sergey Alexandrovich Kryukov 2-Jul-11 2:12am

It does show the solution, a 5.
--SA

RakeshMeena 3-Jul-11 23:54pm

Thanks SA!

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Prerak Patel · Accepted Answer · 2011-06-30T19:33:00

Solution 1

Random past date

Random gen = new Random();
int range = 5*365; //5 years          
DateTime randomDate = DateTime.Today.AddDays(- gen.Next(range));

Random future date:

Random gen = new Random();
int range = 5*365; //5 years  
DateTime randomDate = DateTime.Today.AddDays(gen.Next(range));

Hope it helps.

Posted 30-Jun-11 19:33pm

Prerak Patel

Updated 30-Jun-11 19:34pm

v2

Comments

suryaswathi 1-Jul-11 2:08am

Hi its working but it generates same date and year more time

duplication occur..how to slove uniqe date

Prerak Patel 1-Jul-11 2:11am

How you code it? If you are looping, just loop through last statement.

RakeshMeena 1-Jul-11 2:17am

Prerak is right! You need to move the Random instantiation outside the loop.

suryaswathi 1-Jul-11 2:33am

public DateTime createRandomDate()
{

Random gen = new Random();
int range = 50 * 365; //5 years
DateTime randomDate = DateTime.Today.AddDays(-gen.Next(range));
return randomDate;

}

i did like that ..its return duplicates more how to change

Prerak Patel 1-Jul-11 2:37am

That's a bad idea.


            Random gen = new Random();
            int range = 50 * 365; 
            for(i=0; i<10; i++){
            createRandonDate(gen, range); }

and


public DateTime createRandomDate(Random gen, int range)
        {
            DateTime randomDate = DateTime.Today.AddDays(-gen.Next(range));
            return randomDate;
        }

suryaswathi 1-Jul-11 2:35am

In this it return date and time how i can get only date alone sir.

Sergey Alexandrovich Kryukov 2-Jul-11 2:11am

Correct, a 5.
--SA