Tktable cell update

[Roger Oberholtzer]

I have a TkTable that will change the rows it contains. So I use this to delete/add the rows as needed:

$table delete rows 1 $old
$table insert rows 1 $num

I delete all but the first row, which is the unchanging column labels.

I see that the rows in the table are adjusted as expected. So far so good.

I use the -command option to have TkTable call a function to fill the cells:

-command "getCell %r %c"

This is getting called the first time I add rows. But after that, the command is not getting called. The new cells remain empty. They do not have the old values. They are empty. I tried adding this after inserting the rows:

$table reread

But that made no difference. How can I get TkTable to fill cells the rows that have been added? Am I missing some invalidate command/logic that tells that any old contents should be forgotten and the -command called again? I set the cache logic for it not to cache values, but that made no difference:

-cache 0

It is also odd that the first row (not deleted) is also empty. It is still drawn as a header (different background), but the labels are gone.

[Rolf Ade]

Just do

$table configure -usecommand 1

after you've done after you're finished with your row delete/insert
commands.

This "manually" triggers updating the cell values via the -command
argument.