ID Generation produces not unique IDs

asked 2008-06-19 10:37:41 +0800

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ZK Team

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By: draymann

Hi there,

I experienced problems with the generated IDs. I have a large list (data-bound) and got the message "Not unique in ID space of ..." although all explicitely given IDs were different. I managed to fix this error by explicitley giving the listitem a calculated ID (starting from listitem-0). I then changed the mold to paging. On my WINDOWS PC all was fine, but on a LINUX machine I got the same error message again (maybe not for the listitems but for something different?). The difference between the two systems let me think of a problem with threads or something like that.

The workaround was to implement my own IdGenerator that generates unique IDs in a threadsafe way. Now, all works fine.

Do you know if there's a problem with the standard way IDs are generated? Is the generation properly synchronized?

Kind regards,


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answered 2008-06-20 03:29:21 +0800

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ZK Team

Orignial message at:

By: waterbottle

Hi, Dominik.
Could you post this issue to HELP forum? then we can discuss there.
And is it possible provide a simple reproducible code and the code how you implemented the IdGnerator to make it thread-safe.


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Asked: 2008-06-19 10:37:41 +0800

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Last updated: Jun 20 '08

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