unique number c# net

Question

0.00/5 (No votes)

See more:

hey there.

how can i get 3 unique numbers between 1 and 75 in vc#?

it is not homework just need some help on which method to use

// i have a program that should generate 3 random unique numbers that should be printed out on 3 different labels. (1st winner, 2nd winner, 3rd winner)

I already developed a solution but somethimes (not often) it ouputs 2 equal numbers

so is there any function or method that generates unique numbers everytime between a range eg. (1, 75)

ty all :)

Posted 14-Jun-10 15:54pm

utunity

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

**PSK_** · Accepted Answer · 2010-06-14T16:19:00

Have you tried something like this?

System.Random RandNum = new System.Random();
Label1.Text = RandNum.Next(1, 75).ToString();
Label2.Text = RandNum.Next(1, 75).ToString();
Label3.Text = RandNum.Next(1, 75).ToString();

croell wrote:
I already developed a solution but somethimes (not often) it ouputs 2 equal numbers

If you are generating random number there might be a chance that same number can be generated twice. But if you don't want that just store the generated random number in a array and make sure that each element of the array is unique before adding to it, if any number is already present in the array in that case generate a new number. Once you got all the number in the array assign these values to the desired labels.