Picking a Random Number Only Once

[Epm011]

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.

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

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?

[jmcilhinney]

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

[Epm011]

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

Perfect! Just what I needed. Thanks a bunch