Thanks GUys.
Yes it was probably something with sorting.
Strange also was that after a few times another row got red then the one
which was hilited. So i don't know why.
Yes i use the "of me" whenever the script is in the dg itself. But
sometimes i need to command it from outside the dg.
I removed what i was working on as it costed me too much time, and did
the other option, as i mentioned in another post.
So now the background of a ceel of a column is turning red, which is
even nicer as it draws more attention.
So thanks for your suggestions!
Regards,
Jerry
Op 25-2-2019 om 17:25 schreef Bob Sneidar via use-livecode:
On Feb 25, 2019, at 08:03 , Tom Glod via use-livecode
<use-livecode@lists.runrev.com> wrote:
- dgline and dgindex are different, and as bob said, when the sort is
on, you have to work with dglines.
Yes, lines will reorder according to their visible order, indexes will maintain
their values persistent through a sort.
This is a mixed blessing. Let's say you get the dgHilitedLine of a datagrid,
then wait for the user to do something with the data. In the interim the user
resorts the datagrid! Now when you go to SET the dgHilitedLine, it's no longer
the same data!
I always use dgHilitedIndex for this reason. The only reason you need
dgHilitedLine is when you MUST process the data in the visible order. For
instance if I delete a row, and I want to automatically hilite the prior row, I
need to use the dgHilitedLine -1.
- remember to use the "of me" syntax with every change you make to the
controls of each row
As mentioned in another recent post, "of me" is necessary because each line of
a datagrid has a set of controls for each row named the same as every other row. While
this is allowed in Livecode (I never understood why) it means that referencing a specific
copy of a control requires you also reference the row group it belongs to. I suspect
these messages get sent to the row group specifically so that LC can reference the
specific control for a given row.
Bob S
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