Trevor DeVore wrote:
On Wed, Mar 5, 2014 at 6:27 PM, Richard Gaskin wrote:
I've used the DataGrid successfully on several projects, but today is the
first time I've tried this and I'm getting odd results:
I have some form elements which are much taller than the DataGrid control
itself, and I'm finding that it isn't calculating the heights correctly,
nor scrolling correctly when using the scrollbar arrows.
Is this a known limitation, or is it just me?
The height of the form elements should work even if they are taller than
the data grid itself. Unless of course they exceed the ~32,000 limit for
group height that the engine imposes. If the rows don't exceed that height
then my guess is that the data grid is getting confused about the actual
height of content for some reason.
Is each row the same size or is each row a different size? If each row is a
different height then I would first check to see there are any objects in
your row template that are outside the bounds of what the row height should
be after LayoutControl finishes. The data grid is going to look at the
formattedHeight of each row after LayoutControl. If some object in the
template group causes the formattedHeight to be something other than you
expect then it might cause problems.
Thanks for that background, Trevor.
For the task at hand I found a way to get what I need from a single
field for now, but I'll likely return to using the DG for part of that
later on, and your tips will be very helpful.
And FWIW, I don't think I say it often enough, but the DG really is
quite a remarkable piece of code. The feature-completeness makes it as
exemplary as its flexibility makes it enjoyable. Great work.
--
Richard Gaskin
Fourth World
LiveCode training and consulting: http://www.fourthworld.com
Webzine for LiveCode developers: http://www.LiveCodeJournal.com
Follow me on Twitter: http://twitter.com/FourthWorldSys
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