Going to a line in a scrollable field

[scotttyang]

On the Mac, if I do a "Find" command of a string, the field jumps to that line, but in iOS, in the simulator and the iPad, the foundline doesn't jump to the middle of the scrollable field....

Any solutions?

[jmburnod]

Hi scotttyang,

Maybe this script is useful for you (tested on simulator only):

Code: Select all

on shSearchInFld pSearch
   put the num of chars of pSearch into tNbC
   put trunc(the height of fld 1/2) into tH
   put fld 1 into tText
   put offset(pSearch,tText) into tOff
   put the formattedHeight of char 1 to tOff of field 1 into tFH
   set the scroll of fld 1 to tFH-tH
   select char tOff to tOff+ tnbc-1 of fld 1
end shSearchInFld

Best regards

Jean-Marc

[scotttyang]

Thanks! The concept generally works. The problem is, maybe it's a bug for me, as my scroll field is in a group, so I have to

set the scroll of group "grpscrollingfield" to 500

BUt when I scroll the field, it jumps back to its original scroll position prior to the "set the scroll of the group"

Doesn't make sense to me.

I may have to take this feature out of the App, until I figure it out...as the app is already at the AppStore waiting for review, and have a few more days to fix this...the jumping back to previous scroll point!

Scott

[scotttyang]

it does seem it is the ...

scrollerDidscroll pOffsetX,pOffsetY


that is resetting the scroll after finding a word in the field to the previous scroll position. .... not sure how to get around this...with the scrollerDidscroll, scroller doesn't work....hmmm...

[jmburnod]

Can you post your stack, that will be to easy help you

[scotttyang]

See the attached stack. It's basically a very basic scroll stack. Below are buttons A to H. Clicking on the Letter buttons cause the scroller to jump the the Letter, setting it to the top. BUT...........if you try to scroll again, it jumps the list to the previous vScroll. So it is a bit awkward...WIll need to use in the simulator

[jmburnod]

Hi,
The problem is in the "alphasearch" handler
put
   

Code: Select all

iphoneControlSet scrollid2, "vscroll", vS

instead

Code: Select all

 set the scroll of group "scrollgroup" to vS

and it work like you want
Best
Jean-Marc

[scotttyang]

oh that did it! thanks! would not have figured that out easily myself!