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À
30/04/1997 08:03:00
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Divers
Thread ID:
00030217
Message ID:
00030232
Vues:
54
>>>>Does anyone have a snippet of code that will generate a random, yet unique id of the form
>>>>
>>>>A######, where A=any alpha and #=digit
>>>
>>>I think SYS(2) will return a unique id.
>>
>>No, Sys(2) returns the seconds elapsed since midnight...
>>Your best bet for uniqueness is to implement a counter for both the letter and the number part. If you use randomness there is no guarantee of uniqueness.
>
>In my case, it did the job. I only used it, sometimes, to give the form a random name. The user will not fire the same fire twice in the same second so this was good so far. I used 'A'+SYS(2) to create the form name.


You can check about Rand() fonction may be you can build what you need with this....
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