Sound like the default value for the checkbox needs to be set to True.
Then, in the AfterUpdate event of the date field test the field to see if a
date is entered. If so then set the checkbox to null (or do you mean
False?).
Some air code.
If IsNull([Date Text Box]) then
[chkBox] = True
else
[chkBox] = False
end if
I think you can also use a macro to do this.
You need to set the check box back to True in case they clear the date
field.
Jeff
"More Access Stuff."
http://www.asken.com.au
"AP" <pe*****@stgeorge.com.auwrote in message
news:11**********************@y27g2000pre.googlegr oups.com...
>I am creating a database form that has a date field and a check box.
When a user enters a date then I want the check box to automatically
be null and if no date is entered I want the check box to be ticked.
I am quite new to access to please only easy solutions
Many Thanks