Picking a Random Number Only Once

Hello,

I'm trying to figure out how to make a number be randomly picked but only picked once when a button is clicked. I've got the simple random number code down already but I can't seem to figure out how to have it picked only once.

This is basic random code that I'm using right now.

Code:

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Randomize()
Dim value As Integer = CInt(Int((14 * Rnd()) + 1))

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It picks out a number from 1 to 14 and returns it as an integer in "value", and I'm using to set that to open a specific form but I don't want that specific form to open more than once in a session. So if the number three was already picked out then it could never be returned ever again. I was thinking of making it randomize again if it rolls a number that has already come out but I'm still learning basic code and don't exactly know how I would set out on doing this.

Can anyone point me in the right direction?

Follow the CodeBank link in my signature and check out my threads on Unique Random Selections and Randomising A List.

Quote:

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Originally Posted by jmcilhinney

Follow the CodeBank link in my signature and check out my threads on Unique Random Selections and Randomising A List.

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Perfect! Just what I needed. Thanks a bunch :D