>Fabio,
>
>I take my "thank you" back. It cost us (me and my colleague) almost three hours to find, why our combos on the first page do not show values correctly. When we commented out this code (after looking in desperation on these combox and debugging this stuff) it worked. So, this trick is wrong. Somehow tab changes ListIndex of the comboboxes...
>
>We need to switch to the other solution - looping through controls hierarchy.
>
>Anyway, now we learnt something...
>
>Thanks :)
>

Hi Nadya,

every UTs suggestion is a beginning point in order to find the solution,
and normally refers to PURE and CANDID baseclasses.

With baseclass, i don't look any issue with TAB and
combobox/listbox classes;
on grid the Tab can change the column.

With the events, every piece of code can have secondary effects
(and honestly , 90% of what I see to pass in UT does not work in some situations)
On this case, if the page ( the form )
not consumed the character put in typehaed with the KEYBOARD,
this will come consumed at the first opportunity.

When you uses a KEYBOARD ... PLAIN
it must consume the characters who remain pendants.

You can use A SetFocus search loop.

FOR ... 
  IF PEM ....
    ...SetFocus
...