Disable/Enable selected lines in a field

[Rob Cozens]

Hi Glen,

>I have two fields where a user hilites single or multiple lines in 
>field "aChoiceList" and then presses a button "Yes" which copies the 
>selected lines into field "aSelectedList".
>
>What I am wanting to do is to some how gray out the lines and 
>disable them from being selected in field "aChoiceList" that now 
>show in the field "aSelectedList.
>
>If the user selects lines in the field "aSelectedList and clicks 
>another button "return" then the lines are removed from the field 
>"aSelectedList and the associated lines in the field "aChoiceList" 
>become ungrayed and available to select again in the future.
>

Have you checked out the possibility of setting the textcolor of the 
lines instead of the hilite?

>on mouseUp
>   lock screen

     put  return&(fld "aSelectedList") into previousSelections
     get fld "aChoiceList"
      repeat with x = 1 to the number of lines of it

      /* I don't think "repeat for each line aLine in..."
         gets you the textColor*/

        if the textColor of line x of fld "aChoiceList" is not grey 
then next repeat
        if offset(cr&(line x of it)&cr,previousSelections)<>0 then next repeat

>     put line x of it & cr after fld "aSelectedList"
>   end repeat
>


>   unlock screen
>end mouseUp
>

To select" a line, set its textColor to grey; to deselect it, set the 
textColor to empty.
-- 

Rob Cozens
CCW, Serendipity Software Company
http://www.oenolog.net/who.htm

"And I, which was two fooles, do so grow three;
Who are a little wise, the best fooles bee."

from "The Triple Foole" by John Donne (1572-1631)