How to generate control number in c#

Question

I am making a login for voters using a control number for password.
I have made admin settings where i put in there the selection "maritime education" and "general education".
If maritime education, then the control number generated should start at 100, for the first three number then followed by random numbers and + IDnumber.. IDnumber consists of 5 digits.
Else if general education, then the control number generated should start at 101, then followed by random numbers + IDnumber.

How do i do it?

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Are you asking how to [create a Random Number in C#](http://stackoverflow.com/questions/2706500/how-to-generate-random-int-number-c/2706537#2706537)? — Erik Philips, Oct 23 '13 at 02:55
I don't think so. But i think I want to have, like this, example : `100 + 00001 + 22755`. itll be like 1000000122755. — Lyndon Broz Tonelete, Oct 23 '13 at 02:59
yes i tried if.. Else already. what i need is the code on how to add the 3 values.. like the answer below. — Lyndon Broz Tonelete, Oct 23 '13 at 03:09

score 3 · Accepted Answer · answered Oct 23 '13 at 02:57

3

All you need to determine is whether they chose Maritime or General, then append a random number and their Id Number to the end of it.

Random rand = new Random();
string startingDigits;
if(maritimeEducation)
{
    startingDigits = "100";
}
else
{
    startingDigits = "101";        
}

string controlNumber = string.Format("{0}{1}{2}", 
    startingDigits, rand.Next(10000, 99999).ToString(), IdNumber);

answered Oct 23 '13 at 02:57

Dave Zych

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Don't forget that "random" in this case probably also means "unique" and you will have to have retry logic for when (not if) you generate a duplicate. – Aaron Bertrand Oct 23 '13 at 03:04
`The name 'IdNumber' does not exist in the current context` what should i be putting there? – Lyndon Broz Tonelete Oct 23 '13 at 03:05
You wanted `random numbers and + IDnumber`. Work it out. – Valamas Oct 23 '13 at 03:09

How to generate control number in c#

1 Answers1