I am updating an Access7 database table date field using a bound textbox
via a data control in VB5. In the validation event I check to see if it is
a valid date or blank and stop the update if the field is invalid.
If the field is modified in any way and then all the characters deleted the
value in the textbox becomes a zero length string ("").
A zero length string does not seem to be acceptable to the database and I
cannot set the text1.text to NULL (runtime error 94-Invalid use of Null).
How do I pass a NULL value to the database once the textbox.text has been