Is there a way to make the checkbox that shows in the column header of UltraGrid and UltraComboBox's grid use the AppStyle? I think it is just using the OS theme , so it ends up looking different from the rest of the checkboxes in the grid.
Hello,
What is your version? I tried this and it works just fine, take a look at the attached sample.
Version is 11.2
I forgot to mention, you need to switch your theme to Classic or Windows 7 Basic. The intermediate display looks like the checkbox is disabled.