ocr: D VALCHECK-Undefined Date FieldEchangeValue* method changevalue(uar eventinfo ValueEvent) var d Date enduar try d = date(eventinfo.newvalue0) ;If the preceding statenent was successful the entered value was of the à correct type. Nou custom data validation code can validate the data. if - not 1SBlank(eventinfo.neuvalue()) then if d.DOW) = "sat" or d.DOW) = "Sun" then If the custon validation Fails, set a nol-zero error code. eventinFo.setErrorcode(1) - The next line uses nessage() to display a custom nessage in the - Status bar. This was done since no ObjectPAL nessage exists - that displays t ...
