How to get non-repetative 6 digit's Random number

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I want 6 digit random number,which shouldn't be repetative.

number must is in between 000000 to 999999

I mean it must contain 6 digits.i use this code for that.

C#

Random rnd = new Random();
  int s = rnd.Next(000000, 999999);
ingbal i =new ingbal();
  i.Activation_Code = s.ToString();

but sometime i got same random number and also get 5 digits number i don't want it.

any Suggestion please.?

Thanks in advance.

Posted 26-Dec-13 1:59am

ketan italiya

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2 solutions

Solution 2

Try this

C#

private int RandomNumber(int min, int max)
{
Random random = new Random();
return random.Next(min, max); 
}

Function Call

C#

int returnValue = RandomNumber(000000, 999999);

Posted 26-Dec-13 2:09am

Gitanjali Singh

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King Fisher · Accepted Answer · 2013-12-26T02:03:00

Solution 1

just use this:

C#

var chars = "0123456789";
var random = new Random();
var result = new string(Enumerable.Repeat(chars, 6).Select(s => s[random.Next(s.Length)]).ToArray());
string random_num;
password = result.ToString();

Posted 26-Dec-13 2:03am

King Fisher

Updated 26-Dec-13 2:06am

v4

Comments

ketan italiya 26-Dec-13 8:10am

your code is working superb.thanks for help.

ketan italiya 10-Jan-14 7:25am

Hey i use your code but still i found repetative random numbers.

var random = new Random();
var result = new string(Enumerable.Repeat(chars, 6).Select(s => s[random.Next(s.Length)]).ToArray());

i.Activation_Code = result.ToString();

ketan italiya 10-Jan-14 7:25am

can you please give solution for that.

King Fisher 26-Dec-13 8:12am

welcome