Object Required

[ElvisFan]

Hello, I have an Access question. I am using Access 2002. I am using a very simple form to run a query. I am checking a date field and another field. Everything works fine as long as the fields are filled in. If I leave the date field blank and run the query, I get the message "you cancelled the previous operation." So I am trying to check for a null field. I tried
"if me.txtdate is null then
msgbox("Please fill in a date")
When I have this in Afterupdate for the field. I get the message "object required" I don't understand why the if statement wouldn't work.
Any insight on this?
Thanks,

[mattj]

If IsNull(Me.txtDate) Then
MsgBox "Please Enter a date", vbOkOnly
End If

HTH
Matt

[ElvisFan]

Thank you.

[mattj]

np!