> The section of the online book about this says the lambda in the 
>> selectable should be a redirect; when it was, I still got 2 requests, but 
>> the second had an added var w/ the selected IDs.
> The book doesn't say the callback should do a redirect -- that's just an 
> example. In any case, if your callback doesn't do a redirect, then the grid 
> code itself will do a redirect back to the original URL. This is by design 
> (maybe so reloading the page or leaving and returning don't trigger a 
> browser warning and subsequent re-posting of the selected rows).

Also, in case the selectable callback modifies or deletes any records, 
reloading the grid ensures it will be displaying up-to-date data.


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- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
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