>>>In the TextBox.UIEnable:
>>>
>>>

LPARAMETERS lEnable
>>>IF lEnable
>>>  DODEFAULT()
>>>  this.SetFocus()
>>>ENDIF

>>
>>Doesn't work :(
>
>Works for me on dozens of applications with pageframes.

Doesn't work for me. May be because we have a special UEnabler class? It only the first time the form is instantiated, the focus is on the tab and not on the textbox. When I switch between pages, the focus is correctly set to the first control.

So far I found, that setting pageframe ActivePage to 1 solves the focus issue. However, it executes page activate and deactivate, which I'd like to avoid. Fabio's KEYBOARD suggestion produces undesired effect of empty comboboxes...

I tried all other things: setting focus explicitly, playing with Form's GotFocus. Form's GotFocus works, but then somehow the first click on the different tab doesn't work, only the subsequential clicks.