>>Hi,
>>
>>I would like to know if it is possible to store a value into a report variable on-the-fly? Here is more specifically what I mean.
>>
>>Say in a report column the Expression is a call to a function (e.g. MyFunction()). And say I pass a report variable by reference to this function (using @ syntax). And then the function MyFunction() sets the value to the passed variable. If I use this variable as an Expression in the next column, will it have the value set in MyFunction()?
>
>It should, but.
>
>With code called from within a report, you never know how many times it is called. Specially if there's a preview going on - to show page 7, VFP evaluates and sizes up everything on pages 1 through 6, then renders page 7. Which means that any code in the expressions on these pages is also run when the expressions are evaluated - some of them twice (not sure this still holds, I observed it in several versions of VFP, but don't remember which). If you're using _pagecount variable, whole report is run just to calculate the total number of pages - and all the code on each page too (some of it maybe more than once).
>
>I hope you got the picture. My guess is that it will work, but you'll get a few surprises, aka "unexpected behaviors".

Yes, it's probably better to create a cursor in that function and use it instead of the variable.