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From Christopher Oliver <>
Subject Re: [Flow] Going back and forth with continuations
Date Sat, 14 Dec 2002 05:46:47 GMT

Konstantin Piroumian wrote:

>From: "Ugo Cei" <>
>It seems to me that Christian's version is more correct conceptually, it
>allows to perform additional actions when user clicks "Go back", while in
>your version the flow engine will automatically return the flow to the
>pervious state.
>E.g. in most cases when users click "Go back" button they wish to correct
>mistakes in the data they have entered, so you have to display not the empty
>form, but the form with the data that the user has entered. Will the "-1"
>(or "1") flow step retain the filled data in the form? I suspect that won't.
>In the above version of the script it would be easy to implement.
The filled data is retained, even when you invoke a continuation. The 
continuation just restores the program counter, it doesn't roll back 
changes to other data.

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