how to generator random numbers

hello,

i want to generat random numbers in c# how can i do it ?

the random numbers should at MIN be 1 digit long  and MAX 9 digits long

Thank you
kensy11Asked:
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käµfm³d 👽Commented:
You can only generate pseudo-random number, so you are aware. One of the choices you have to make, though, is whether you want a low-quality "random" number or a cryptographically random number. The latter is seemingly more random. The low quality random number can be made like this:

System.Random rand = new System.Random();

int value = rand.Next();

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If you want cryptographically random, then you'll need to use a different class.
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kensy11Author Commented:
thank i have one other small qaustion could you please help me

i like the outcome of this line of code to be like this

000000045  for example not just 45      so i used  {0:d9} but its not working do you know why ?


Console.WriteLine("Het nummer {0:d9} is een geldig studentnummer.", StudentNum");
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käµfm³d 👽Commented:
I'm not sure about that format specifier, but you can use "{0:000000000}" and it should give you that output.
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käµfm³d 👽Commented:
P.S.

StudentNum will need to be a numeric type (e.g. int, decimal, double, etc.) in order for the padding to work the way you are expecting.
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kensy11Author Commented:
thank you very much
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