INSERT INTO invoices (invoiceid, custid, invdate, total) ; VALUES (STR(TTOD(TODAY()),6), "C0001", DATE(), 0) Add items and recalc total:
CLEAR SET DEFAULT TO <path-to-your-app> OPEN DATABASE mydb EXCLUSIVE DO FORM MainForm A simple class example:
GO NEXT IF EOF() SKIP -1 && stay on last ENDIF THISFORM.Refresh() Field validation example (on LostFocus of email TextBox):
DEFINE CLASS MyApp AS Custom PROCEDURE Init WAIT WINDOW "App started" TIMEOUT 1 ENDPROC ENDDEFINE o = CREATEOBJECT("MyApp") Use TRY/CATCH for safe updates:
AppStart.prg: