Subject Re: combobox / msgbox From Mervyn Bick <invalid@invalid.invalid> Date Thu, 15 Feb 2024 12:26:41 +0200 Newsgroups dbase.getting-started On 2024/02/15 10:50, Michel wrote: > Hello, > I have the following issue : > I have a combobox (style 1 DropDown) with and OnChange event like below : > > function MYCOMBOBOX_OnChange >     if form.myRowset.findkey(uper(this.value))         >        // some code >     else >        msgbox("Not Found", "Check", 0 + 16) >        return >     endif > return > > When entering wrong data (directly in the box, without opening it) and going to next field in the form by pressing TAB key, msgbox opens normally. But if going to next field by pressing ENTER key (CUAENTER is OFF), msgbox doesn't open (as if enter key was applied directly to the msgbox), and then I have no warning. > > What am I missing ? > Michel I'm afraid, based on the information given, I haven't been able to reproduce the problem. Keep in mind that the combobox's onChange event is only triggered if the user actually changes the value displayed in the combobox's entryfield either by typing in a value or by selecting a value from the dropdown list.  If the onChange event handler is not executed the message box won't open. A possible solution is to use the combobox's onGotFocus event handler to remove any previous value so that the user must either type in a value or select from the dropdown list. You could use the the combobox's onLostFocus event handler to test for an empty value and force focus back to the combobox until a value, valid or not, has been entered.      function MYCOMBOBOX_onGotFocus         this.value= ''         return      function MYCOMBOBOX_onLostFocus         if empty(this.value)            this.setFocus()         endif         return Mervyn