>In a Keypress method of a form I have a case statement like the following (snippet)...
>
>LPARAMETERS nKeyCode, nShiftAltCtrl
>DO CASE
>CASE nKeyCode = 19 AND nShiftAltCtrl = 2
>ThisForm.cmdSave.Click()
>NODEFAULT
>CASE nKeyCode = 21 AND nShiftAltCtrl = 2
>ThisForm.cmdUndo.Click()
>NODEFAULT
>.
>.
>.
>OTHERWISE
>DODEFAULT()
>ENDCASE
>
>... which works fine for the keys in the case statement, like Ctrl S for save. However, with this code in use I have two problems:
>
>1. Pressing Tab skips over fields on the form, like every other one. The tab order is set correctly. When I Shift Tab it moves through every field. If I comment out the Keypress code Tab moves through the form perfectly.
>
>2. While tabbing through the fields (skipping like above) I hit an error "Property Value is not found." on some of the combo boxes on the form. The combo boxes are pretty standard, with no unusual code in their methods. Again, if I comment out the Keypress code this error does not appear.
>
>Any ideas on what is going on with this Keypress method? I do not have any code in the Keypress specific to the Tab key.
>
>Thanks.

Hi Mark,

I was just composing a reply when I noticed Christof appeared with much the same information. But since I have it mostly done, here it is ...

VFP has a problem with DODEFAULT() in keypress events. They make the key fire two times. This is the reason for your tabs that skip, and other odd behavior. MS has claimed to fix this bug at least 2 times since VFP 3, but it's still around.

You won't have the problem if you just omit DODEFAULT() from you code, or if you need to trigger superordinate class cose, use the mybaseclass::keypress construct.

good luck